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Multi-Tech Systems MT5634SMI User's Manual

1. sss 99 Alphabetic List of Commands and Hesponses uccsexsae ned adatFe binos EX oS RE FRERR UN DPA SR inisieer FRENAR S eue dS 100 Peo CYS On OSEE HP CE RR UH ODEEH PA EUE ER OUEE UR QURE RHODE RO XR d ERAT GEH AD S ER VOCE NE UO DNE RUE 102 Chapter 4 Voice Commands 1 uieieee iiis iaa anun au saa ua ia aanas REIS AD BN Au an iaiaaeaia 103 aee ha suo ee EE 103 Voice c Reggietor SUMMAN ei onec biete cei riore ue nr ee ea eerte adole ou ner d eoru Reet once rere 104 POE PRSE RTT aspen ps Term 104 Commands That Change for Voice Mode SUpDOM isscccasscorssercdonrasatacerseendssceesdanserstnsdbecedacugnrsecedsecers 104 VOCS y GOMANG nN aen ST S S SLOTS 105 poueridesunuroscH ncl iao E LS E EEE 105 merate comiuratan Camnimang PE I EOD D o o AE SS 119 us Q4 e M ORUM 121 vote Mode SS aisi ctnnawsa basen oss Ri edra DO RATASE RO dea ddl on ku iR Sch Rz a eda DUR add 121 Unsolicited Veins Mode Result COGOR us osea bbsibrr aceite att aeu ndn eb dada eda KC d sabia A UR saan 122 Vane Complex Event Repor Rc Tn 122 Voce Mods a CodeS sisien iain aiia S AE AAEN Ga rci un dedii re Do abd EAA NATS 123 E UIDES EA E endi E E E EN EE ETA ELO Du Kad ad nda adf 125 Sample Rate Selection and Suggested Compression Method sss 125 Answer Phone Play Greeting Message and Record Message Example sss 126 DIEDE niorit Male ciocovnpis rri da rOeicO ecran OC e Fla cae t n Oa C
2. Country AT Command Result Code Hexadecimal Decimal Euro NAM At T19 0 34 default 52 Australia At T19 0 01 1 Czech Republic At96T19 0 25 37 Japan At T19 0 10 16 New Zealand At T19 0 9 9 For a complete listing see the Multi Tech Web site at www multitech com Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 130 Index Index 5 56K operation digital loss when used with PBX S108 30 A ADON METS NT of scr medioe hel Semis Action Commands ada pt vs QUERIT ecir et itte tfo einer telo eoi sapaia Adaptive Answer HFAA cccccsecsseesceseceseeeeeeeeeeeneens 85 Adaptive Answer Result Code Enable command A 16 Address amp Polling Capabilities FAP 80 Addressing amp Polling Frames FSA FPA FPW 81 Answer Call command i a eee ree ree 61 Answer command A ssssssssssseseeer eene 8 Answer paranee oeeie e eee cti tete sene re E re E tees aeo 85 PCAN COM Mm 102 Asynchronous Communications Mode command amp Q 13 Asynchronous Word Length EB sss AT Command Control command DC AT Command Summary AT commands ossis CBA Callback Attempts sse CBD Callback Delay sees CBF Callback Failed Attempts Display ids CBFR Callback Failed Attempts Reset CBN Store Callbac
3. Command Parameter Function Applicable in Applicable in Fax Class 1 Fax Class 1 0 FCLASS lt class gt Select read or test service class X X FAA lt value gt Auto answer enable X FAE lt value gt Auto answer enable X X FTS lt time gt Stop transmission and pause X X FRS lt time gt Wait for silence X X FTM lt mod gt Transmit data with lt mod gt carrier X X FRM lt mod gt Receive data with lt mod gt carrier X X FTH lt mod gt Transmit HDLC data with lt mod gt carrier X X FRH lt mod gt Receive HDLC data with lt mod gt carrier X X FAR lt off on gt Adaptive reception control X FCL lt time gt Carrier loss timeout x FDD lt value gt Double escape character replacement control X FlT lt time gt action DTE inactivity timeout X FPR lt rate gt Fixed DTE Rate X FMI Report manufacturer ID X FMM Report model ID gt X FMR Report revision ID X FLO Flow Control X amp K Local DTE modem flow control see Call X X Control Section A Answer X X D string Dial X X H Hang up see Call Control Section X X X stands for Applicable stands for Not Applicable Fax Origination Origination of fax calls is made using the ATD command Upon completion of the dial function a calling tone at 1100 Hz is transmitted with a cadence of 0 5 seconds on and 3 seconds off The modem automatically enters mode FRH 3 and sends the CONNECT message to the DTE when FSK flags ar
4. Error Correction Mode Selection command N 15 Error Threshold Multiplier parameter 84 Escape AT Command esae ctore steer 21 Escape character S2 Escape Sequens ue dee m dritte er tee dee Escape Sequence literal character in AT FPH 92 d day of month in AT FPH sess 92 Sab hen AESEDPEL eue uae eiie hte tte 92 94 hour 24 hr clock AT FPH 92 e day of year m A TPPE uiuis 92 M minute in ATHFPH eese 92 m month in AT FPH ss 92 p am or pm in AT FPH 92 P current page of fax in AT FPH 92 Vr ID of remote fax machine in AT FPH 92 s time seconds expression in AT FPH 92 t ID of transmitting fax machine in AT FPH 92 Voy year w o century in AT FPH sss 92 9o Y year with century in AT FPH 92 Escape sequence ATMTSMODEM peak Escape sequence FAHAT oo isccccssssccstsssiesseccsassesccses cease 21 Event Reporting and Masking command VEM 117 Example Answer Play Greeting Record Message 126 Compression Methods esses Example of Transmission and Reception Examples of calling answering table F Facsimile Connection response se Fallb ck asserere reete Fallback and Fall
5. sess 11 Result Code Options command W s 11 Result Code Selection command X 11 t por EM 5 Result Codes enrio t EE E EE 31 Result Codes Enable Disable command Q 10 Return Online to Data Mode command O 10 Ring Priority vs AT Command Priority Command RP 18 Rings poule em usines nitide eee eee 28 Rings SO setting number of 0 2 s 0 ccccccsccassetssiacseessaasecces 28 ROM Cho8RSUib eeoeeciver te eater ees eoe rate cine cao tav oo terea 10 S Select Analog Source Destination command VLS 111 Select Default Beep Tone Duration Timer DTMF Tone Generation Duration command VTD 115 Select DTE DCE Interface Rate Turn Off Autobaud command P VPRs uita e eeeee ettet tte tete 120 select Fax Class 1 command FCLASS 1 37 select Fax Class 1 0 command FCLASS 1 0 37 Select Flow Control Method command FLO Select Maximum MNP Block Size command A 14 Select Modem Operating Mode command FCLASS 105 Select Stored Configuration command amp W 14 Select Voice Compression Method command VSM 114 Serial Port Baud Rate command SB 18 Service Class Available FCLASS Service Class Capabilities command m Service Class Selection FCLASS value 60 Service Class
6. followed by a parameter value if setting a parameter or if inquiring the valid values of a parameter Any AT command that follows a fax AT command must be separated from it by a semicolon Fax AT command types There are two types of fax AT commands action commands and parameter commands Action commands initiate a sequence of events that change command mode to command execution mode and therefore do not execute instantaneously Because of this mode change an action command must be the last command in a command line In contrast parameter commands execute immediately therefore more than one can appear in the same command line Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 50 Chapter 3 Fax Class 2 Commands Parameter command types There are three types of parameter commands set a parameter read a parameter and read the valid values for a parameter Note When receiving fax responses from the modem the state of the regular AT parameter V is important If verbose mode is enabled set by issuing the ATV1 command and then all responses will be preceded and followed by a lt CR gt lt LF gt combination If terse mode is enabled set by issuing the ATVO command and then all responses will be followed by CR only Also regular AT responses are affected by the same V parameters e g verbose response OK terse response 1 All examples in this chapter assume verbose mode Respo
7. sees 62 DCD Control command 4C esee 12 DCE Capabilities Parameters 12 IDE TERDOBBQR eerte en ieri erae PC EE 64 Diagnostic Information Displaying sss 10 Dial command D escicn eerte Dial Stored Telephone Number command DS 9 Dial string modifiers esses 9 Dialing tones S11 ease 28 Direct Connect Enable command H i Display Current Settings command amp V 14 Index Display Service Class Capabilities command AT FCLASS 00 ceccseesssscsesceceseeceececeseseeeessaeseeseces 106 Distinctive Ring command VDR s 25 Distinctive Ring Report command VDR 18 downstream data rate set S38 sss 29 DSR Control command amp S see 13 DTE Phase C Response Timeout parameters DTE DCE Interface Rates DTMF Detect Detect and Control DTMF command SIX LASS E E 106 DTR Control command amp D eee 12 DTR Dialing command D eee 17 E Enable Disable Distinctive Ring Ring Cadence Reporting command VD eese itte tib iioi 116 enables the V 25 calling tone 835 Enter Setup Password command ZS Enter Voice Receive State command 33 Error control 36 setting s ssssssisssssssiseripssisssiossesssiosssnns Etror control setting S48 Liuius cse iei tectee
8. Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 34 Chapter 2 Fax Class 1 and 1 0 Commands If no more data is in the transmit buffer and the final bit was a 1 bit 4 of the second byte received from the DTE the modem generates the OK result code and returns to the command mode If the final bit was a 0 the modem generates the CONNECT message and waits for further data from the DTE while transmitting HDLC flags If no more data is received before 5 seconds elapse the modem drops carrier goes on hook and generates the ERROR result code Fax Control Reception Fax control reception is initiated using the AT FRH lt mod gt command After this command is issued the modem looks for carrier in the modulation scheme specified by the parameter n If no carrier is detected before the period of time specified by register S7 expires the modem generates the NO CARRIER message and returns to command mode If a carrier is detected that is not the one specified by the parameter n the modem generates the FCERROR message and returns to the command mode If the specified carrier is detected the modem generates the CONNECT message and enters the HDLC receive mode In HDLC receive mode the modem receives HDLC frames from the remote fax machine strips the flags performs zero bit deletion performs error checking and handles lt DLE gt lt chr gt character pairs before passing the data to the DTE The modem prefixes e
9. cr where tag is the data type is the ASCII sign data is a specific data instance and cr is ASCII 13 decimal Valid Complex Event Report Tags Tag TIME DATE NMBR NAME MESG ERRM DRON DROF CPON CPOF CWON CWOF ASTB SITT Description Caller ID Tag in the form TIMEZHHMM where HH is the hour 00 23 and MM is the minute 00 59 All numbers are in ASCII and numbers less than 10 have a leading O The current date in the format MMDD where MM is the month 0 12 and DD is the day 01 31 All numbers are in ASCII and numbers less than 10 have a leading O The telephone number of the caller in the format NUBR lt Number gt or P or O ASCII 4F hex The P indicates that the calling number information is not available since the originating caller has requested Private service The O indicates that the calling number information is not available since the caller is outside of the area code The caller s name in the format NAME Listing Name Indicates a data item not listed above in Multiple Message Format MESG lt Data Tag gt lt Length of Message Data Checksumo in printable ASCII to avoid confusion with binary output Error Tag used for Caller ID and other uses Refer to the VCID command Distinctive Ring Cadence On time Distinctive Ring Cadence Off time Control Tone Cadence On time Control Tone Cadence Off time Call Waiting Cadence On time Call Waiting Cadence Off time See
10. Class 2 FLPL Write syntax FLPL lt value gt Values 0 1 Default 0 The Class 2 parameter is the same as the Class 2 1 parameter except for the name Request to Poll Class 2 1 FSP Write syntax FSP lt value gt Values 0 1 Default 0 FSP 0 The host does not want to poll FSP 1 The host can receive a polled document The modem resets this parameter to 0 after a polled document is received Class 2 FSPL Write syntax FSPL lt value gt Values 0 1 Default 0 The Class 2 parameter is the same as the Class 2 1 parameter except for the name Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 78 Chapter 3 Fax Class 2 Commands Capability to Receive Class 2 1 FCR Write syntax FCR lt value gt Values 0 1 Default 0 FCR 0 The modem will not receive message data also the modem will not be able to poll a remote device This can be used when the host has insufficient storage or if the modem does not have a Phase C V 27ter V 29 demodulator The modem can send and can be polled for a file FCR 1 The modem can receive message data FCR is sampled in ITU T 30 Phase B and Phase D Class 2 FCR Write syntax FCR lt value gt Values 0 1 Default 0 The Class 2 parameter is identical to the Class 2 1 parameter Session Message Reporting Class 2 1 FBU Write syntax FBU lt value gt Valid values 0 1 Default value 0 FBU 0 Disables HDLC frame reportin
11. n se 17 Online command mode eren Optional Parameter Commands ies Origimate Call D iue aicssesdesssncssetsssssaessnassensenaes P Page Header Generation ieeeece eene tonne roit enini 91 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide 8000263C 134 Page Transfer Status EPS osie uude 82 Page Width Format Conversion FWDFC 90 Parameter Cosmands 1 annes eret 72 parity setting Pause time for comma S8 setting sss 28 PCM Upstream Ignore command PIG 23 Phase C Data Format FBO Post Page Message Response FET i Post Page Message Release command Produce DTMF and Tone Generation in Voice Mode command VTS Q olde Rounoo mE 25 Quick Connect Control command PQC 25 R Rate S37 maximum data 29 Read Register Value command Sr well Receive Page Transfer Status response amp FPS 68 Receive Quality Thresholds FRQ 84 Remote configuration Escape charac iet T Escape character S9 1 uussieasc eerte recep Tesi Remote Escape AT Command Remote escape character changing ssss 129 Remote ID Responses FTI FCI 4FPPI 66 remote IDs Ps Remote Polling Indication Response FPO
12. FFC Class 2 0 2 1 Write syntax FFC lt vrc gt lt dfc gt lt Inc gt lt wdc gt Valid values see table below Default values manufacturer s option Mandatory values 0 0 0 0 This compound parameter determines the modem response to mismatches between the Phase C data delivered after the FDT command and the data format parameters negotiated for the facsimile session For mismatch checking the modem depends on the host to indicate the data format with embedded lt DLE gt lt format gt character pairs If these format indicators are not provided the modem shall assume that the format is as negotiated for that session For each subparameter value 0 determines that mismatch checking is disabled and all format codes of this type are ignored Value 1 determines that mismatch checking is enabled with session termination if the format codes do not match the negotiated format reported in FCS responses Other values enable degrees of format conversion Unspecified values are reserved Setting Description vre 0 Vertical resolution format codes ignored vre 1 Vertical resolution checking enabled vrc 2 Vertical resolution conversion enabled for 1 D data vrc 3 Vertical resolution conversion enabled for 2 D data dfc 0 Data format codes ignored dfc 1 Data format checking enabled dfc 2 Data format conversion enabled Inc 0 Page length format codes ignored Inc 1 Page length checking enabled Inc 2 Page length conversion
13. Local Polling ID String PFCIG Report Remote ID ertt FCLASS Service Class Setting FCON Fax Connection Response FCR Capability to Receive FCSI Report Remote ID ene FDCC Modem Capabilities Parameters FDIS Current Sessions Parameters SEDE Bata Receptl t uei ietee te teer 63 FDT Data Transmission eee 62 ADM Gre Mov CR 65 TEEN Post Pase Message eere ete 69 FHNG Call Termination with Status 69 FK Session Termination eee 63 FLCASS lt value gt Service Class Selection 60 FLP Indicate Document to Poll 78 FLPL Indicate Document to Poll 78 FMDL Request Model ID ae FMFR Request Manufacturer ID 60 FMINSP Minimum Phase C Speed 86 FMS Minimum Phase C Speed 86 FNSC Report Non Standard Negotiation Frames 66 FNSF Report Non Standard Negotiation Frames 66 FNSS Report Non Standard Negotiation Frames 66 FPHCTO Host Phase C Response Timeout 85 FPOLL Remote Polling Indication 65 FPTS Page Transfer Status FPTS Receive Page Transfer Status FREV Request Revision ID ES
14. Reports the HDLC data that was sent by the modem Report Received HDLC Frames FHR Syntax FHR lt received HDLC frame octets gt Reports the HDLC data that was received by the modem Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 93 Chapter 3 Fax Class 2 Commands Sample Modem Control Sessions Send two pages 1 D data no errors Class 2 Host Modem Local Modem Remote Station Action Commands Responses Action AT FCLASS 2 OK Set Class 2 AT FLID lt local ID gt OK Set local ID ATD dial string off hook dial answer send CNG send CED FCON detect flags V 21 flags 4 FCSI csi get CSI CSI FDIS lt dis get DIS DIS codes OK AT FDT send TSI get TSI send DCS get DCS send TCF get TCF FDCS lt dcs codes gt get CFR send CFR CONNECT send carrier receive carrier lt XON gt lt 1st page data gt send page data receive page data lt DLE gt lt ETX gt OK AT FET 0 send RTC get RTC send MPS get MPS FPTS 1 get MCF send MCF OK AT FDT CONNECT send carrier receive carrier lt XON gt lt 2nd page data gt send page data receive page data AT FET 2 send RTC get RTC send EOP get EOP FPTS 1 get MCF send MCF FHNG 0 send DCN get DCN OK hang up hang up Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 94 Chapter 3 Fax Class 2 Commands Receive two pages 1 D data no errors Class
15. CONNECT send flags detect carrier send DNC frame detect flags lt DLE gt lt ETX gt send FCS receive DC NC OK drop carrier final frame ATHO OK hang up hang up Table 2 5 Fax Class 1 Answering Sequence Receiving a Single Page DTE Commands Modem Responses Local Modem Action Remote Station Action Notes AT FCLASS 1 OK Set Class 1 RING lt detect ringing dials send CNG ATA off hook AT FRH 3 send CED get CED implied by answering send V 21 carrier detect carrier with FCLASS 1 0 CONNECT send flags detect flags not final frame CSI frame data send CSI frame receive CSI lt DLE gt lt ETX gt CONNECT send FCS get FCS send flags get flags lt DIS frame data gt send DIS data get DIS lt DLE gt lt ETX gt OK send FCS and flags get flags final frame drop carrier AT FRH 3 detect carrier send V 21 carrier CONNECT detect flags send flags lt TSI frame data gt receive TSI send TSI frame lt DLE gt lt ETX gt receive FCS send FCS OK accept FCS frame OK AT FRH 3 CONNECT receive DCS send DCS frame final frame bit set lt DCS frame data gt receive FCS send FCS lt DLE gt lt ETX gt accept FCS OK frame OK AT FRH 3 NO CARRIER detect loss of carrier drop carrier DTE did not check final frame bit and issued FRH 3 AT FTM 96 wait 75 ms CONNECT detect carrier send V 29 carrier lt TCF data gt receive TCF send TCF data lt DLE gt lt ETX gt detect loss of carrier drop carrier OK AT FRH 3 send V 21 carrier detect carrier CONNE
16. DTE Write DTE Read FCC DCE Capabilities DIS DTC if receive DTE Write 4FIS DTE Report DCE Negotiating Virtual DIS DTE Read Position on send Y DIS DTC 0 0 0 0 0 0 0 0 from remote station Cold End of Start Session DTE Write FCS Negotiated DCS if send DTE Read Session Parameters i i Remote DCS on receive T 30 session parameters Modem Capabilities Parameters Class 2 1 FCC Write Syntax FCC VA BR WD LN DF EC BF ST JP Values See Table 3 5 Default 1 5 0 2 0 0 0 0 FCC allows the host to sense and constrain the capabilities of the facsimile modem from the choices defined in ITU T T 30 When FCC is modified by the host the modem will copy FCC into FIS Note The Multi Tech implementation does not include the T 32 subparameter WD 3 and 4 values or the EC 2 and 3 values also for subparameter BF only the 00 value is implemented Class 2 FDCC Write Syntax FCC VAR BR WD LN DF EC BF ST Values See Table 3 5 Default 1 5 0 2 0 0 0 0 The Class 2 parameter is essentially the same as the Class 2 1 parameter except that it lacks the JP subparameter and the modem copies FDCC into FDIS Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 72 Chapter 3 Fax Class 2 Commands Current Sessions Parameters Class 2 1 FIS Write Syntax FIS VAR BR WD LN DF EC BF ST JP Values See Table 3 5 Default 1 3 2 2 0 0 0 0 0 The FIS parameter allows the
17. Default Description Command Values Default Description CBRy CBSn Pn Sx S x Chapter 1 AT Commands S Registers and Result Codes Callback Security Reset y 0 29 None Clears the password and phone number in the y memory location Callback Enable Disable n 0 1 2 or3 0 CBSO Disables callback security CBS1 Enables local and remote callback security CBS2 Enables remote callback security only CBS3 Disables callback security until local hang up or reset Set 11 bit Parity n Oor1 2 PONo parity P1 Odd parity P2Even parity Enter Setup Password X password 1 8 characters case sensitive MTSMODEM Enters the remote configuration setup password Store Setup Password X password 1 8 characters case sensitive MTSMODEM Stores a new remote configuration setup password Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 20 Chapter 1 AT Commands S Registers and Result Codes Escape AT Commands Command Values Description Command Values Description AT lt CR gt Escape Sequence N A Puts the modem in command mode and optionally issues a command while remaining online Type AT and up to six optional command characters then press ENTER Used mostly to issue the hang up command ATH lt CR gt ATMTSMODEM lt CR gt Remote Configuration Escape Sequence N A Initiates remote configuration mode wh
18. Description Command Values Default Description En Hn Rn Sn Dn EBn MBn Chapter 1 AT Commands S Registers and Result Codes Fallback and Fall Forward Control n 0 1 or2 2 E0 Disable fallback and fall forward E1 Enable fallback disable fall forward E2 Enable fallback and fall forward Direct Connect Enable n 0 1 0 HO H1 Sets callback security to normal operation All callback security calls will be direct connect regardless of whether the password or phone number has the character Cisco Configuration n 0 1 0 RO R1 Disables Cisco configuration Sets EO Q1 amp DO NO SB9600 and S1 for operation with a Cisco router Command Speed Response n 2 0 1 0 S0 Sets modem to respond to AT commands at all normal speeds S1 AT commands accepted at 115200 bps only Commands at other speeds are ignored DTR Dialing n Oor1 0 D0 Disables DTR dialing D1 Dials the number in memory location 0 when DTR goes high Asynchronous Word Length n Oor1 0 EBO Enables 10 bit mode EB1 Enables 11 bit mode Online BPS Speed n speed in bits per second 28 800 MB75 Selects CCITT V 23 mode MB300 Selects 300 bps on line MB1200 Selects 1200 bps on line MB2400 Selects 2400 bps on line MB4800 Selects 4800 bps on line MB9600 Selects 9600 bps on line MB14400 Selects 14400 bps on line MB19200 Selects 19200 bps on line MB28800 Selects 28800 bps on l
19. V Protocol Result Code etn 16 V Result Code Format V XON XOFF Pass Through W Result Code Options essen X Result Code Selection iu Z Resetting the Moe eoe AT Commands join MED m 8 AT commands IB uide aadeiieeet iniret 19 AT commands RP Ring Priority vs AT Command PUOI EE 18 AT commands Sr Read Register Value 11 tterition code command AT iuuuuu ettet 8 Autoanswer Pncup WET SU ERR 28 Automatic Hang Up Control command VNH 107 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 131 B Backspace character S5 setting sss 28 Bad Line Threshold paramet r e 84 Bell 212A mode Blacklist command eerte enin 16 Break Control command 3K e nee 15 Break Signal s Buffer Size parameters C Call Termination with Status FHS 69 E A Ter Lo ncn ecce en e 23 Call Waiting Enable command PCW 23 Callback Attempts command ZCBA 19 26 Callback Delay command ZCBD s 19 Callback Delay command ZCBD 126 Callback Enable Disable command ZCBS 120 Callback Enable Disable command ZCBS 27 Callback Failed Attempts Display command ZCBF 19 Callback Failed Att
20. command to ask which times and for which compression methods as well as for which analog source destination selections events can be detected and reported when not disabled by the VEM command Example In the lines below only the RING and the DTMF event detection reporting AT VEM 18000000 OK Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 117 Command Description Chapter 4 Voice Commands VEM Report Event Reporting and Masking Capabilities The VEM command returns four lines of modem event reporting masking capability information followed by the OK result code The first line indicates the Service Level supported by the modem though the modem may support more than the capabilities displayed The next three lines report the capability of the Voice Transmit mode Voice Receive mode and the Voice Command mode respectively Each line is a hex value that is the bit wise OR function across all of the supported compression methods and across all analog source destination hardware configurations i e all VLS settings for the specified mode Note that the displayed hex values are not connected to the mask parameter in the VEM and VEM commands Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 118 Chapter 4 Voice Commands Interface Configuration Commands The commands in this section are used to define the interface between the PC and the modem
21. entente 39 FTH Transmit Data with HDLC Framing 40 FTM Transmit Facsimile m APE TS Receive SGAE uniono ssr SETS Transmit Sternee eet trente 37 Fax Connection Response FCO fax control reception cceeseesecseeeeceeeceeeeeeeeeeeceaeeeeeeees 35 ax contro transp SION nccontenepe setae 34 fax data reception 36 fax data tram Sim BIO ioa cei een cde egeta 36 Fax double escape character replacement du dips 42 Fax DTE inactivity timeout parameter FIT 42 Fax fixed DTE rate parameter FPR 43 Fax Flow Control FLO see Fax flow control parameter FLO 44 iE dingue e rir DE 33 TAX OU SINAMON RR 34 Fax receive data with HDLC framing command FRH 40 Fax Receive Facsimile FRM sese 39 Pax R cerve Silence FRS aecenas eres 38 fax request manufacturer identification parameter FMI 43 Fax request model identification parameter FMM 43 Fax request revision identification parameter FMR 43 Fax Service Class 2 and Service Class 2 0 2 1 48 Fax Transmit Data with HDLC Framing FTH 40 Fax Transmit Facsimile FTM esee 38 Fax transmit silence command FTS eodd Puaware Versum Displaying i uiae correcte 10 Dr addon eenosad ciebat eredi Flow control Flow OTERO Nm 121 Flow
22. 0 The 96A command controls whether the DATA or FAX result codes will be sent by the modem The modem must be in fax mode for this command to work Also the modem must be set to FAA 1 which enables the modem to distinguish between a fax and a data call When these commands are enabled the modem sends DATA to the computer when it detects data tones and FAX when it detects fax tones These strings are used by some servers to select the appropriate communication program 96A0 Disables adaptive answer result codes A1 Enables adaptive answer result codes View Numbers in Blacklist N A If blacklisting is in effect AT B displays the numbers for which the last call attempted in the previous two hours failed In countries that do not require blacklisting the ERROR result code appears Data Compression Control n Oor1 1 CO Disable V 42bis MNP 5 data compression C1 Enable V 42bis MNP 5 data compression AT Command Control n Oor1 0 DCO The modem responds to AT commands DC1 The modem ignores AT commands Note The modem will respond to AT DC for 10 seconds after power up Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 16 Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default
23. 2 Host Modem Responses Local Modem Action Remote Station Action Commands AT FCR 1 OK Enable Reception AT FLID lt local OK Set local ID ID gt RING lt Detect ring lt Dials send CNG ATA off hook send CED get CED send CSI get CSI send DIS get DIS FCON detect flags send V 21 flags FCSI lt tsi gt get TSI send TSI FDIS lt dis codes get DIS send DIS OK begin TCF recv start TCF AT FDR accept TCF finish FCT FCFR send CFR get CFR FDCS lt dcs codes gt CONNECT get page carrier send page carrier lt DC2 gt get page data send page data lt page data stream gt lt DLE gt lt ETX gt lt detect RTC lt send RTC FPTS 1 lt Ilc gt drop carrier FET 0 lt get MPS send MPS OK AT FDR send MCF get MCF FHNG 0 lt get DCN lt send DCN OK Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 95 Chapter 3 Fax Class 2 Commands Send two pages 1 D data no errors Class 2 0 Square bracketed responses are conditional on the remote station actions curly bracketed responses are conditional on switches set by the host For this example all reports are enabled FNR 1 1 1 1 Square bracketed commas are optional for the host Remote Station Action a MEAM Set local PWD host may load a Password password string gt Set SUB AT FSA lt SUB Host may load a destination SUBaddress string gt AT F
24. 21 Channel 2 7E flags Event Number 23 Transmit Buffer Under run Event Number 24 Line voltage increase extension phone goes on hook R 2 Event Number 24 Line voltage increase extension phone goes off hook Event Number 25 Facsimile or Data Answer Event Number 26 Data Answer Event Number 27 Voice Detection A high confidence of voice Event Number 27 Voice Detection A low confidence of voice Event Number 29 Stuttered Dial tone Event Number 30 Invalid Voice Data Format Voice data is incompatible with selected Voice Compression Methods Event Number 31 Lost Data Detected Event Event Number 32 Facsimile Answer Event Number 63 manufacturer specific Event Number 48 manufacturer specific Event Number 49 manufacturer specific m lt lt gt v VoocnNmKaA o7 8 Ro o ooo B RA amp oo i QO1 0 9 9 0 O OQ 01 9 UJ 3 Iv I 3 7 Event Number 50 manufacturer specific Event Number 51 manufacturer specific go NNNNNO OI XO CO J O O1 Q O all other 7 bit ASCII Reserved for future use Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide 8000263C 124 Chapter 4 Voice Commands Sample Sessions This section provides voice mode Send Receive handshaking examples Sample Rate Selection and Suggested Compression Method Command AT VSM AT VSM 128 OK AT VEM
25. 25ter GMI command to request the name of the modem s manufacturer Example AT FMI Multi Tech Systems OK FMFR The FMFR command requests the name of the modem s manufacturer Request Model Identification Class 2 1 Class 2 FMM The FMM command executes the V 25ter GMM command to request the modem s model number Example AT FMM MT5634ZBA V92 OK FMDL The FMDL command requests the modem s model number Request Revision Identification Class 2 1 Class 2 FMR The FMR command executes the V 25ter GMR command to request the modem s firmware revision number Example AT FMI FREV The FREV command requests the modem s model number Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 60 Chapter 3 Fax Class 2 Commands Action Commands Action commands transfer data and punctuate sessions They also release specific T 30 messages An action command with a terminating carriage return character CR in the syntax specification must be the last command on a command line Subsequent commands on the same line as one of these action commands will be ignored All action commands initiate processes The modem does not accept other commands from the host until the modem issues a final result code e g OK CONNECT The modem will abort the process if it receives any character before the final result code is issued other than an immediate lt LF gt chara
26. 4 Event Number 4 Event Number 4 Event Number 4 DTMF 6 Event Number 4 DTMF 7 Event Number 4 DTMF 8 Event Number 4 DTMF 9 Event Number 4 DTMF 0 Event Number 4 Extended Keypad DTMF A Event Number 4 Extended Keypad DTMF B Event Number 4 Extended Keypad DTMF C Event Number 4 Extended Keypad DTMF D Event Number 4 Extended Keypad DTMF E Event Number 4 Extended Keypad DTMF E Event Number 5 Receive Buffer Overrun Event Number 6 Facsimile Calling Event Number 7 Data Calling Event Number 8 line current break Local phone goes on hook Event Number 8 line current detected Local phone goes off hook Event Number 9 Presumed Hang Up SILENCE Timeout Event Number 10 Presumed End of Message QUIET Timeout Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 123 Chapter 4 Voice Commands 4A Event Number 11 SIT Tone Event Number 12 Bong Tone we To 2 o g Event Number 13 Loop Current Interruption Usually indicates a remote hang up Event Number 14 Loop Current Polarity Reversal May indicate a hang up or a receive depending on CO implementation Event Number 15 Call Waiting Beep Interrupt Event Number 17 TDD Detected 1400 1800 Event Number 18 Ring Back Event Number 19 BUSY May be repeatedly sent Event Number 20 DIALTONE May be repeatedly sent Event Number 21 Reorder Fast Busy Event Number 22 V
27. 5 respectively The examples show the interchange between the DTE and the modem for various cases Comments are included to explain how to handle various situations Commands and responses are in upper case and comments are in lower case All streams of data denoted by lt frame gt are terminated by the lt DLE gt lt ETX gt characters Table 3 4 Fax Class 1 Calling Sequence Transmitting a Single Page Chapter 2 Fax Class 1 and 1 0 Commands DTE Commands Modem Responses Local Modem Action Remote Station Action Notes AT FCLASS 1 OK Set Class 1 ATDT lt string gt Dial and send CNG Answer Look for V 21 send CED V 21 AT FRH 3 Detect flags Send HDLC flags implied by dialing with E FCLASS 1 0 lt rame gt DLEs lt ETX gt Send NSF frame OK AT FRH 3 CONNECT Detect flags CFI frame data get CSI send CSI frame lt DLE gt lt ETX gt get FCS OK accept FCS check FCS Frame status OK AT FRH 3 CONNECT Detect flags DTE must detect final lt DIS frame data gt get DIS send DIS frame frame bit to anticipate lt DLE gt lt ETX gt get FCS loss of carrier OK accept FCS check FCS AT FRH 3 NO CARRIER detect loss of carrier drop carrier AT FRH 3 send V 21 carrier detect carrier Final frame bit clear tells CONNECT send flags detect flags the modem to expect send TSI frame get TSI frame another frame TSI frame data send FCS Final frame bit set tells lt DLE gt lt ETX gt CONNECT send flags the modem not to send DCS f
28. 52000 bps Connected at 54000 bps Connected at 56000 bps Connected at 58000 bps Connected at 60000 bps Connected at 16800 bps Connected at 115200 bps Delay is in effect for the dialed number Dialed number is blacklisted Blacklist is full Connected at 230400 bps Connected at 28000 bps Connected at 29333 bps Connected at 30666 bps Connected at 33333 bps Connected at 34666 bps Connected at 37333 bps Connected at 38666 bps Connected at 41333 bps Connected at 42666 bps Connected at 45333 bps Connected at 46666 bps Connected at 49333 bps Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 31 112 113 114 115 116 EC is added to these result codes when the extended result codes configuration option is enabled EC is replaced by one of the following codes depending on the type of error control connection V42bis V 42 error control LAP M and V 42bis data compression CONNECT 50666 CONNECT 53333 CONNECT 54666 CONNECT 25333 CONNECT 26666 Chapter 1 AT Commands S Registers and Result Codes Connected at 50666 bps Connected at 53333 bps Connected at 54666 bps Connected at 25333 bps Connected at 26666 bps V42 V 42 error control LAP M only MNP5 MNP 4 error control and MNP 5 data compression MNP4 MNP 4 error control only NoEC No error control protocol Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 32 Chapter 2 Fax C
29. 7 4 XO Basic result codes CONNECT does not look for dial tone or busy signal X1 Extended result codes CONNECT 46000 V42bis does not look for dial tone or busy signal Extended result codes with NO DIALTONE does not look for busy signal Extended result codes with BUSY does not look for dial tone Extended result codes with NO DIALTONE and BUSY Extended result codes with NO DIALTONE and BUSY Extended result codes with NO DIALTONE and BUSY Basic result codes with NO DIALTONE and BUSY Modem Reset n Oor1 None ZO Reset modem to profile saved by the last amp W command Z1 Same as ZO Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 11 Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Description Command Values Defaults Description amp Cn amp Dn amp En amp Fn amp Gn amp Kn Chapter 1 AT Commands S Registers and Result Codes Data Carrier Detect DCD Control n 0 1 2 1 amp CO amp C1 Forces the DCD circuit to be always ON DCD goes ON when the remote modem s carrier signal is detected and goes OFF when the carrier signal is not detected DCD turns OFF upon disconnect for time set by S18 It then goes high again for some PBX phone systems amp C2 Data Terminal
30. C 06 04 04 Create a separate Universal Socket Hardware guide and a separate AT Command Reference Guide Trademarks Trademarks of Multi Tech Systems Inc are SocketModem and the Multi Tech logo Microsoft and Microsoft Windows are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries World Headquarters Multi Tech Systems Inc 2205 Woodale Drive Mounds View MN 55112 Phone 763 785 3500 or 800 328 9717 Fax 763 785 9874 Technical Support Country By Email By Phone France support multitech fr 33 1 64 61 09 81 India support multitechindia com 91 124 6340778 U K support multitech co uk 44 118 959 7774 U S and Canada oemsales multitech com Rest of the World oemsales multitech com Internet Address http www multitech com 800 972 2439 763 717 5863 a Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 2 Table of Contents Contents Chapter 1 AT Commands S Registers and Result Codes eese 5 NFBGUCIDN pal Q 5 A SRN SHUT fois seers te nn dete t abs Esc e la os Gode obcda i or fe dati dp edt tab dur RR aa 6 AT Om S s aa sav Eo eh UU dL eb v Do ndr d a T Uu Ra T e ER D I ER TUER GE UE Ned 8 Escape qe gc E E 21 ueteres IUIS NN S DESI IA 22 clc lp Me ER 28 cippo EE 31 Chapter 2 Fax Class 1 and Class 1 0 Commands eese eseeeeeiene
31. Description Chapter 1 AT Commands S Registers and Result Codes Callback Attempts n 1 255 4 Sets the number of callback attempts that are allowed after passwords have been exchanged between modems Callback Delay n 0 255 15 Sets the length of time in seconds that the modem waits before calling back the remote modem Callback Failed Attempts Display N A N A Requests the number of failed callback passwords since reset or power up This number can be stored to nonvolatile memory using the amp W command Callback Failed Attempts Reset N A N A Resets the number of failed callback passwords to 0 This does not reset the number stored in nonvolatile memory Local Callback Inactivity Timer n 1 255 20 Sets the time in minutes that the modem waits for a command before forcing the user to enter the setup password again Store Callback Password y 0 29 x password None Sets the callback security password for the y memory location The password must have 6 to 10 characters and cannot include the or characters Callback Parity n 0 1 0r2 0 Sets parity for the callback security messages CBPO No parity CBP1 Odd parity CBP2 Even parity Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 19 Command Values Default Description Command Values Default Description Command Values Default Description Command Values
32. Disallowed in Voice mode Disallowed in Voice mode Disallowed in Voice mode Reset modem amp D1 is disallowed in Voice mode Places the modem in Voice mode New values are added for Voice mode New values are added for Voice mode Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 104 Chapter 4 Voice Commands Voice V Commands Summary These commands support Voice mode Command Description VNH FMI FMM FMR FLO VIP VRX VTS VTS VTX VGR VGT VIT VLS VLS VRA VRN VSD VSM VSM VTD VDR VDT VEM VEM VBT VBT VPP VPR Automatic Hang Up Control Report Manufacturer s ID Report Product ID Report Version Level Select Flow Control Method Initialize Voice Parameters Enter Voice Receive State Produce DTMF and Tone Generation in Voice Mode Report Frequency Support Start Voice Transmission Process Set the Gain for Received Voice Samples Set the Volume for Transmitted Voice Samples Set DTE DCE Inactivity Timer Select Analog Source Destination Identify Analog Source Destination Configuration and Event Reporting Capabilities Set Ring back Goes Away Timer Set Ring back Never Appeared Timer Set Silence Detection Sensitivity Select Voice Compression Method Report Voice Compression Method Select Default Beep Tone Duration Timer DTMF Tone Generation Duration Enable Disable Distinctive Ring Ring Cadence Rep
33. Forward command E Fax adaptive reception control parameter FAR 41 fax ANSWETING eee eerte tne tn ente ne tnnt Fax carrier loss timeout parameter FCL Fax Class 1 and 1 0 auto answer enable command FAA d antra ne ierit fiam tiet it edid 37 Fax Class 1 and Fax Class 1 0 Commands Table 34 Fax Class 1 0 auto answer enable command FAA 37 Fax Class 2 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 133 AT Command Implementation ess 49 AT Command Mode sese 50 Fax Class 2 Parameter Table nee 54 Fax Commands FAA Auto Answer Enable Class 1 0 37 FAE Auto Answer Enable Clas 1 amp 1 0 37 FAR Adaptive Reception Control Al FCL Carrier Loss Timeout 2 nnne 4 FCLASS 1 Select Facsimile Class 1 Mode 37 FCLASS 1 0 Select Facsimile Class 1 0 Mode 37 FDD Double Escape Character Replacement 42 FIT DTE Inactivity Timeout 0 0 0 eee eeeeeeeeeeee 42 FLO Flow Control caecis erenaas 1 44 FMI Request Manufacturer Identification 52343 FMM Request Model Identification 143 FMR Request Revision Identification 1 43 EPR Pied DTE Rate nnne 143 FRH Receive Data With HDLC Framing 140 TERM Rec tve Faestmile
34. Guide S000263C 53 Chapter 3 Fax Class 2 Commands If you are using Class 2 format this information is provided through the use of the AT FDT command with its optional parameters Fax Parameter DLE Character to Precede Image Data fax page width 2048 pixels 67h fax page width 2432 pixels 68h fax page width 1216 pixels 69h fax page width 864 pixels 6Ah data compression MH 6Bh data compression MR 6Ch data compression 6Dh uncompressed not supported vertical resolution standard 61h vertical resolution fine 62h fax page length A4 63h fax page length B4 64h fax page length unlimited 65h fax page with 1728 pixels 66h data compression MMR 6Fh Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 54 Chapter 3 Fax Class 2 Commands Commands and Responses Overview This chapter describes three kinds of commands and responses Action commands Action commands initiate a sequence of events that do not execute instantaneously and therefore change command mode to command execution mode An action command must be the last command in a command string Responses Responses are result code messages sent to the host by the modem Note Older MultiModem Il modems those with model numbers MT2834xx and lower respond with the parameter name as a prefix to the value of the parameter value when a parameter value or range of values is que
35. Inc SocketModem MT5634SMIxx Reference Guide S000263C 38 Chapter 2 Fax Class 1 and 1 0 Commands Result Codes CONNECT Reported when the modem begins the training sequence after receipt of a valid mod value ERROR If the modem transmit buffer becomes empty and the last transmitted character is NUL 00 the modem continues to transmit NULs until the DTE sends more data or five seconds elapses After five seconds elapse with an empty transmit buffer the modem will turn off the transmit carrier return to the command state and report the ERROR result code OK If the modem s transmit buffer becomes empty and the last transmitted character is not NUL the modem will turn off the transmit carrier return to the command state and report the OK result code Reporting Current or Selected Values Command FTM Response FTM lt mod gt Example FTM 98 For V 17 9600 bps Reporting Supported Range of Parameter Values Command FTM Response FTM lt mod gt range Example FTM 3 24 48 72 73 74 96 97 98 121 122 145 146 Command FRM Receive Facsimile Description This command causes the modem to enter the receiver mode using the modulation defined below Defined Values lt mod gt Decimal number corresponding to the selected modulation mode and data rates shown in Table 3 2 Reporting Current or Selected Values Command FRM Response FRM lt mod gt Example FRM 98 for V 17 9600 bps Reporting Supported Ran
36. Interaction The modem has three modes of interaction AT command mode command execution mode and data transfer mode In AT command mode serial data sent to the modem is interpreted as commands when preceded by the characters AT Command execution mode follows AT command mode when an action command such as a dialing command is sent to the modem The modem responds to an action command by displaying responses that indicate the progress of the command and also information received from the remote fax modem If serial data is received at that point the fax is aborted and the phone call terminated Data transfer mode begins after a FDT or FDR command is entered from AT command mode the command is executed and a CONNECT response is given When a FDT command is used to enter data transfer mode the serial data sent to the modem should be image data for the page being transmitted as specified by the ITU T T 4 standard When a FDR command is used to enter data transfer mode the serial data received from the modem should be image data for the page currently being received AT Command Mode In AT command mode both regular AT commands and fax AT commands can be sent Regular AT commands are used to control data modem functions and functions common to both modem and fax operation such as dialing ATD and answering ATA Fax AT commands begin with the characters F followed by a command name followed by either if reading a parameter
37. It is useful for limiting the cost of a transmission by requiring a minimum transmission speed If a facsimile cannot negotiate to a minimum speed it performs an orderly disconnect The units are the same as those defined for the BR Bit Rate subparameter as defined in Table 3 6 in this manual Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 86 Chapter 3 Fax Class 2 Commands Phase C Data Format Parameters Data Bit Order FBO and FBOR Class 2 0 2 1 FBO Write syntax FBO lt value gt Valid values 0 1 Default value 0 This parameter controls the mapping between PSTN facsimile data and the host modem link There are two choices FBO 0 Direct bit order for both Phase C data The first bit transferred of each byte on the host modem link is the first bit transferred on the PSTN data carrier FBO 1 Reversed bit order for Phase C data The last bit transferred of each byte is the first bit transferred on the PSTN data carrier The effect of this parameter is illustrated for the EOL pattern in the Phase C Data Format Parameters section in this chapter Class 2 FBOR Write syntax FBOR lt value gt Valid values 0 1 Default value 0 This parameter controls the mapping between PSTN facsimile data and the host modem link There are two choices FBOR 0 Direct bit order for both Phase C data The first bit transferred of each byte on the host modem link is the first bit transferred
38. MCF responses to complete pages and set FPS 1 modem transmit copy quality checking is disabled the host is responsible for T 4 or T 6 compliance FCQ 1 0 modem receive copy quality checking is enabled the modem will determine the recommended Post Page Message and store it into the FPS parameter modem transmit copy quality checking is disabled the host is responsible for T 4 or T 6 compliance FCQ FCQ lt value gt Valid values 0 1 0 This parameter controls copy quality checking by the receiving facsimile modem The modem will generate a page transfer report indicated with the XFPTS 2 ppr lc blc cblc response and posted in the FPTS parameter The FCQ parameter setting also conditions the generation of bad line count blc and consecutive bad line count lt cbic gt subparameters FCQ 0 The modem does no copy quality checking The modem will generate copy quality OK MCF responses to complete pages and set FPS 1 FCQ 1 The modem can check 1 D Phase C data The host must check copy quality for 2 D Phase C data On new V92 modems FCQ 1 means it will also check 2 D Phase C data Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 83 Chapter 3 Fax Class 2 Commands Receive Quality Thresholds Class 2 1 FRQ Write syntax FRQ lt pgk lt cbi gt Values 0 to 64h for lt pgi gt 0 to FFh for lt cbi gt Default 0 0 This compound parameter replaces the BADMUL an
39. PC must issue the proper notifications of a record operation in progress by message playbacks to satisfy possible legal requirements VRX 1 Voice receive operation This selection does not provide for modem periodical tone production during a voice receive operation The tone frequency and cadence is manufacturer specific VRX 2 127 Reserved for future specification VRX 128 255 Manufacturer specific The result code values 0 1 2 127 128 255 are returned if the modem accepts the command The ERROR result code is returned if the modem is not connected to an off hook Telco line or one non Telco input device VTS lt string gt Produce DTMF and Tone Generation in Voice Mode Refer to the IS 101 Spec Refer to the IS 101 Spec Refer to the IS 101 Spec The VTS command causes the modem to produce DTMF tones single frequency tones and optionally double frequency tones This command allows the PC to generate a dial tone busy etc for those modems capable of generating two arbitrary tones The modem may perform tone detection during the playing of tones When the modem receives the signal lt DLE gt lt gt to abort playing of the tones the result code OK is displayed and the modem returns to the voice command state The Inactivity Timer is in effect during the receive operation If the PC uses this timer and stops the modem from performing unwanted restarts the PC must assure that there is data sent from the PC to the modem
40. Ready DTR Control n20 1 2 0r3 2 amp DO amp D1 Modem ignores true status of DTR signal and responds as if it is always on If DTR drops while in online data mode the modem enters command mode issues an OK and remains connected If DTR drops while in online data mode the modem hangs up If the signal is not present the modem will not answer or dial amp D3 If DTR drops modem hangs up and resets as if ATZ command were issued amp D2 XON XOFF Pacing Control n 2 120r 13 12 amp E12 Disables XON XOFF pacing amp E13 Enables XON XOFF pacing Load Factory Settings n 0 None amp FO Load factory settings as active configuration Note See also the Z command V 22bis Guard Tone Control n 0 1 or2 0 amp GO Disable guard tone amp G1 Set guard tone to 550 Hz amp G2 Set guard tone to 1800 Hz Note The amp G command is not used in North America Flow Control Selection n 0 3 or4 3 amp KO Disable flow control amp K3 Enable CTS RTS hardware flow control amp K4 Enable XON XOFF software flow control Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 12 Command Values Defaults Description Command Values Default Description Command Values Default Description Command Values Default Description Command Default Description amp Ln amp Pn amp Qn amp Sn amp Tn Chapter 1 AT Commands S Regi
41. Report Addressing or Password Strings Class 2 1 FSA FPA FPW Syntax FSA lt SUB string gt Destination Subaddress Syntax FPA lt SEP string gt Polling Address Syntax FPW lt PWD string gt Polling Password These responses report the received Addressing or Password string if any Originate Answer FDT or FDR command execution may generate these responses if the corresponding frames are received If the corresponding subparameter in the FAP parameter is set the modem shall report the characters in these strings in reversed time order from the order received from the remote station For example if the following hexadecimal Subaddress string is received lt 39 gt lt 38 gt lt 37 gt lt 36 gt lt 35 gt lt 34 gt lt 33 gt lt 32 gt lt 31 gt lt 30 gt lt 39 gt lt 38 gt lt 37 gt lt 36 gt lt 35 gt lt 34 gt lt 33 gt lt 32 gt lt 31 gt lt 30 gt The result would be lt CR gt lt LF gt FCl 01234567890123456789 lt CR gt lt LF gt Class 2 There are no equivalent responses in Class 2 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 67 Chapter 3 Fax Class 2 Commands T 30 Phase C Page Reception Responses Receive Page Transfer Status Class 2 1 FPS Syntax FPS ppr lc blc cblc Ibc The FPS lt ppr gt response is generated by the modem at the end of Phase C data reception in execution of a FDR command The ppr response is generated by
42. Vn Result Code Format Wn Result Code Options Xn Result Code Selection Zn Modem Reset amp Cn Data Carrier Detect DCD Control amp Dn Data Terminal Ready DTR Control amp En XON XOFF Pass Through amp Fn Load Factory Settings amp Gn V 22bis Guard Tone Control amp Kn Flow Control Selection amp Ln Leased Line Operation amp Pn Pulse Dial Make to Break Ratio Selection amp Qn Asynchronous Communications Mode amp Sn Data Set Ready DSR Control amp Tn Loopback Test V 54 Test Commands amp V Display Current Settings amp Wn Store Current Configuration amp Zy x Store Dialing Command An Select Maximum MNP Block Size Bn Transmit Break Kn Break Control Nn Error Correction Mode Selection Qn Flow Control Selection Tn Inactivity Timer Wn Protocol Result Code Cn Data Calling Tone 96A Adaptive Answer Result Code Enable B View Numbers in Blacklist Cn Data Compression Control DCn AT Command Control En Fallback and Fall Forward Control Hn Direct Connect Enable Rn Cisco Configuration Sn Command Speed Response EBn Asynchronous Word Length Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C Chapter 1 AT Commands S Registers and Result Codes Command Description Dn DTR Dialing MBn Online BPS Speed SBn Serial Port Baud Rate CBAn Callback Attempts CBDn Callback Delay CBF Callback Failed
43. allowed The string can be partitioned into one two or three parts by using single quote characters in the command expression Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 91 Chapter 3 Fax Class 2 Commands An escape sequence is a followed by an optional width which may include a leading left justification signifier and then by the escape character itself It is of the form 9e numbers character The dash denotes left justification When the dash is absent right justification is used If the width specification starts with a zero then when the escape sequence is expanded the value will be left padded with zeroes Otherwise it will be left padded with spaces The following escapes are recognized d or D The day of the month as a decimal number range 01 to 31 h or 99H The hour as a decimal number using a 24 hour clock range 00 to 23 i or l The hour as a decimal number using a 12 hour clock range 01 to 12 j Or YJ The day of the year as a decimal number range 001 to 366 m The month as a decimal number range 01 to 12 M The minute as a decimal number two digits p Either am or pm according to the given time value or the corresponding strings P The current page number of the FAX being sent as computed by the padding 9er or R The ID of the remote FAX machine Leading and trailing blanks are stripped A print style f
44. connection automode disabled The default is V92 mod Modulation Possible rates bps V92 v92 56000 54666 53333 52000 50666 49333 48000 46666 45333 44000 42666 41333 40000 38666 37333 36000 34666 33333 32000 30666 29333 or 28000 V903 V 90 56000 54666 53333 52000 50666 49333 48000 46666 45333 44000 42666 41333 40000 38666 37333 36000 34666 33333 32000 30666 29333 or 28000 V34 V 34 33600 31200 28800 26400 24000 21600 19200 16800 14400 12000 9600 7200 4800 or 2400 V32B V 32bis 14400 12000 9600 7200 or 4800 V32 V 32 9600 or 4800 V22B V 22bis 2400 or 1200 V22 V 22 1200 V23C V 23 1200 V21 V 21 300 Bell212A Bell 212A 1200 Bell103 Bell 103 300 Notes 1 See optional automode max rate and max HX rate subparameters 2 Selects V 92 modulation as first priority If a V 92 connection cannot be established the modem attempts V 90 V 34 V 32bis etc Selects V 90 modulation as first priority If a V 90 connection cannot be established the modem attempts V 34 V 32bis etc C automode An optional numeric value that enables or disables automatic modulation negotiation using V 8 bis V 8 or V 32 bis Annex A Automode is disabled if values are specified for the max rate and max rx rate parameters The options are 0 Disable automode Enable automode default Multi Tech Systems Inc Socket
45. future standards Example The lines below shows control tone cadence reporting enabled with an on tone of 2 0 seconds and an off time of 4 0 seconds The command used to enable the sample sequence is VDT 1 Note the absence of the Ring Back Remote Ring Busy and Reorder Fast Tone event reports CPOF 40 CPON 20 CPOF 40 CPON 20 CPOF 40 CPON 20 VEM lt mask gt Event Reporting and Masking bits 0 32 on i e FFFFFFFF8 OK if the modem accepts this command ERROR if the bit field contains illegal characters The VEM command can be used to disable an event report regardless of the modem s state or of the modem s analog signal source or destination s configuration The mask parameter is a bit field where bit 0 is the most significant bit of an eight digit hex number The PC setting of a bit enable event reporting for that event Bit 0 in the bit field corresponds to Event number 0 Caller ID see Features Matrix for models that support Caller ID This mask effects the reporting of the specified event in all modes Fax On line data AT Command and Voice modes Events cannot be masked by modes however the PC can change the mask each time it changes modes The modem detectable events depend on the compression method selected by the VSM command The VEM command may effect the reporting capabilities of other V commands The detection of an event may not be possible at all times and for all compression methods Use the VLS
46. host to sense and constrain the capabilities used for the current session The modem uses FIS to generate DIS or DTC messages directly and uses FIS and received DIS messages to generate DCS messages The modem sets the FIS parameter from the FCC parameter on initialization when FCC is written and at the end of a session Class 2 FDIS Write Syntax FCC VAR BR WD LN DF EC BF ST Values See Table 3 5 Default 1 3 2 2 0 0 0 0 The Class 2 parameter is essentially the same as the Class 2 1 parameter except that it lacks the JP subparameter and the FDIS parameter is set from the FDCC parameter Current Session Results Class 2 1 FCS Read syntax FCS Response VR BR WD LN DF EC BF ST JP Values See Table 3 5 Default 0 0 0 0 0 0 0 0 0 The FCS parameter is loaded with the negotiated T 30 parameters for the current session A transmitting modem generates DCS a receiving modem gets DCS from the remote station The host may only read this parameter The FCS parameter is set to 0 0 0 0 0 0 0 0 on initialization on FIP command execution and at the beginning of a session If the host issues a FCS command in the initial state the modem will report lt CR gt lt LF gt 0 0 0 0 0 0 0 0 lt CR gt lt LF gt The contents of FCS are spontaneously reported during execution of FDR 2 3 5 or FDT 2 3 3 commands by the FCS VR BR WD LN DF EC BF ST JP response using the same compound parameter format See T 30 Phase B N
47. indicator in the received data stream In unframed receive modes if the modem detects RTC as described in Recommendation T 30 prior to initial loss of the high speed carrier or if the modem detects V 21 carrier after initial loss of high speed carrier then the modem immediately accepts the loss of carrier as qualified without waiting for the FCL timer to expire In HDLC receive modes if the modem detects HDLC abort prior to initial loss of the high speed carrier or if the modem detects V 21 carrier after initial loss of high speed carrier then the modem immediately accepts the loss of carrier as qualified without waiting for the FCL timer to expire value Decimal number representing the loss of carrier delay time in units of 100 ms The range is 0 255 Reporting Current or Selected Values Command FCL Response FCL time Example FCS 0 For the default setting Reporting Supported Range of Parameter Values Command FCL Response FCL time range Example FCL 0 255 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 41 Command FDD Description Defined Values Chapter 2 Fax Class 1 and 1 0 Commands Double Escape Character Replacement This parameter conditions the use of the DLE SUB pair to encode consecutive 1 0 1 0 in data This may be used to prevent unbound expansion of data that contains many 1 0 patterns value Decimal number corresponding
48. method gt Select Flow Control Method 107 VIP Initialize Voice Parameters ss 107 VRX Enter Voice Receive State 108 VTS Produce DTMF and Tone Generation 108 VTS Report Frequency Support VTX Start Voice Transmission Process TVGR Set Gain for Received Voice Samples 110 tVGT Set Volume for Transmitted Voice Samples RUM 110 VIT Set DTE DCE Inactivity Timer 110 VLS Select Analog Source we d VLS Identify Analog Source 2112 TVRA Set Ring Back Goes Away Timer 112 TVRN Set Ring Back Never Appeared Timer 112 VSD Set Silence Detection Sensitivity 113 VSM Voice Compression Method 114 VSM Report Voice Compression Method 115 VTD Select Default Beep Tone Duration 115 VDR Enable Disable Distinctive Ring 116 VDT Control Tone Cadence Reporting 117 VEM Event Reporting amp Masking 117 VEM Report Event Reporting amp Masking Sour os eva AEE Voice Command eerte teens Voice Mode Result Codes i Voice Mode Shielded Codes ees 123 Voice Sample SESSIOfS i eerte ertne ertet ttt rint 125 Ww Wait time for dial tone S6 sss 28 X XON XOFF Pacing Control command amp E 12 Mu
49. often enough to refresh the timer Modem support for the second tone generation is optional The modem produces compliant DTMF tones when processing DTMF tone production codes The tone generation string consists of elements in a list where each element is separated by commas Each element can be 1 Asingle ASCII character in the set of 0 9 and A D 2 A string enclosed in square brackets or 3 A string enclosed in curly braces The modem interprets item 1 as a DTMF digit with duration set by the VTD command The modem interprets item 2 as a general dual tone and duration selection The modem interprets item 3 as a DTMF tone with a different duration than that given by the VTD command Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 108 Command Result Codes Description Chapter 4 Voice Commands Missing parameters are assumed to be the default value Unspecified values always default to 0 for frequencies DTMF for DTMF tones and VTD for duration The omission of commas and associated subparameters is valid The quantity in the square brackets consists of a three element list The first element is the first frequency the second element is the second frequency and the third element is the duration in 0 01second intervals A list may contain null elements For example 3000 means that the modem generates a single tone at 3000 Hz for the default duration 3000 3300
50. only at rates automatically detectable by the modem The specified rate takes effect following the issuance of any result code s associated with the current command line The rate specified does not apply in Online Data State if Normal Mode Direct Mode of operation is selected FPR lt rate code rate code Specifies the DTE modem interface operation rate in bits s with a rate code The available rate codes are 0 Automatic detection default 1 2400 bits s executes IPR 2400 2 4800 bits s executes IPR 4800 4 9600 bits s executes IPR 9600 8 19200 bits s executes IPR 19200 10 38400 bits s executes IPR 38400 18 57400 bits s executes IPR 57400 If unspecified or set to 0 automatic detection is selected and the character format is also forced to autodetect ICF 0 If the rate specified is not supported by the modem an ERROR result code will be returned Reporting Current or Selected Values Command FPR Response lt rate code gt Example 1 0 For automatic rate detection Example 2 18 For 57600 bits s Reporting Supported Range of Parameter Values Command FMI Description Syntax Typical Response Command FMM Description Syntax Typical Response Command FMR Description Syntax Typical Response Command FPR Response rate code range Example 0 1 2 4 8 10 18 Request Manufacturer Identification This command causes the modem to report the modem
51. or ERROR I3 Display default speed and controller firmware version l4 Display firmware version for data pump e g 94 I5 Display the board ID software version hardware version and country ID I9 Display the country code e g NA Ver 1 I11 Display diagnostic information for the last modem connection such as DSP and firmware version link type line speed serial speed type of error correction data compression number of past retrains etc Monitor Speaker Mode n20 1 2 0r3 MO Speaker always off M1 Speaker on until carrier signal detected M2 Speaker always on when modem is off hook M3 Speaker on until carrier is detected except while dialing Modulation Handshake n 0Oor1 1 NO Modem performs handshake only at communication standard specified by S37 and the B command N1 Modem begins handshake at communication standard specified by S37 and the B command During handshake fallback to a lower speed can occur Return Online to Data Mode 0 1 3 None OO Exit online command mode and return to data mode see AT lt CR gt escape sequence O1 Issue aretrain and return to online data mode O3 Issue arate renegotiations and return to data mode Pulse Dialing P T T Configures the modem for pulse non touch tone dialing Dialed digits are pulsed until a T command or dial modifier is received Result Codes Enable Disable n Oor1 0 QO Enable result codes Q1 Disable result codes Q2 Returns an OK for
52. prevents standby mode a value of 1 4 sets the value to 5 Standby mode sleep mode or low power mode is controlled by S89 It programs the number of seconds of inactivity before the modem will go to sleep The default value is 0 A value of 0 disables standby mode The modem will wake on an incoming ring or an AT command 108 decimal 0 3 6 7 6 Selects the 56K digital loss if using the modem through a PBX line The default value is 6 dB loss the value used when calling from a typical POTS line long distance 0 0 dB digital loss no robbed bit signaling 1 3 dB PBX digital loss 2 2 dB digital loss 3 3 dB digital loss 6 6 dB digital loss 7 0 dB digital loss with robbed bit signaling Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 30 Result Codes Chapter 1 AT Commands S Registers and Result Codes In command mode your modem can send responses called Result Codes to your computer Result codes are used by communications programs and can also appear on your monitor Terse Verbose 0 OK 1 CONNECT 2 RING 3 NO CARRIER 4 ERROR 5 CONNECT 1200 6 NO DIALTONE 7 BUSY 8 NO ANSWER 9 CONNECT 75 10 CONNECT 2400 11 CONNECT 4800 12 CONNECT 9600 13 CONNECT 14400 14 CONNECT 19200 18 CONNECT 57600 24 CONNECT 7200 25 CONNECT 12000 28 CONNECT 38400 40 CONNECT 300 55 CONNECT 21600 56 CONNECT 24000 57 CONNECT 26400 58 CONNECT 28800 59 CONNECT 31200 60 CO
53. recording purposes The parameter meanings are described below cml is used by the PC to select a compression method The valid range of values is from 128 256 The range of values from 0 127 is reserved for future standards vsr is used to select the modem voice sampling rate from the set of those supported The unit of measure is samples per second See the VSM command for the list of sampling rates supported by the modem scs has different meanings in voice transmit and voice receive modes In receive the PC uses scs to select greater amounts of compression activity larger scs values mean that the PC wants the modem to treat noisier conditions as silence There is no unit of measure for this parameter it merely represents a number in a range 0 disables modem silence compression In voice transmit mode the PC signals the modem that the data stream was recorded with silence compression by selecting a non zero value from within the valid range the same value as receive Unpredictable results can occur if you 1 enable silence compression for transmitting a voice data stream that was not recorded with silence compression enabled or 2 you disable silence compression for transmitting a voice data stream that was recorded with silence compression enabled You can modify the silence expansion with the sel parameter The range of valid values is 0 255 The modem may limit silence compression sensitivity to a nar
54. the FNR subparameters In Phase B the FDT command releases the modem to proceed with negotiation and to release the DCS message to the remote station In Phase D the FDT command resumes transmission after the end of a previous page Class 2 FDT Syntax FDT DF VR WD LN lt CR gt Post Page Message Release Class 2 FET n This command releases the post page message to the remote modem The possible values for n are listed in the table below nz Symbol Description 0 MPS Multi Page Signal 1 EOM End of Message 2 EOP End of Page 4 PRI MPS Multi Page Signal with procedure interrupt 5 PRI EOM End of Message with procedure interrupt 6 PRI EOP End of Procedure with procedure interrupt Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 62 Data Reception Class 2 1 Syntax Class 2 Chapter 3 Fax Class 2 Commands FDR FDR lt CR gt The FDR command initiates transition to Phase C data reception This can occur after answering after dialing after a document is received or after a page is received The modem may report the negotiated T 30 parameters with the remote ID and NSS frame information if available When the modem is ready to commence data transfer it will issue a CONNECT response code After the host receives the CONNECT response and the host is ready to accept data it will issue a lt DC2 gt character 12h to the modem FDR
55. the modem it depends on the modem for T 4 or T 6 error checking capabilities controlled by the FCQ parameter See Table 3 0 for ppr values The receiving modem may count lines and bad lines and report them Values are lc X line count blc bad line count cblc consecutive bad line count lt lbc gt lost byte count due to modem buffer overflow The line counts are qualified by the modem s copy checking capabilities controlled by the FCQ parameter If the modem is not configured to count lines or if line counts are irrelevant e g in Binary File Transfer mode Recommendation T 434 the modem sets the line counts to 0 A receiving host may inspect lt ppr gt and write a modified value into the FPS parameter The modem will hold the corresponding post page response message until released by a FDR command from the host Table 3 0 Class 2 1 T 30 Post Page Response Message Codes Value Mnemonic Description 1 MCF Page good 2 RTN Page bad retrain requested 3 RTP Page good retrain requested 4 PIN Page bad retrain requested interrupt request accepted 5 PIP Page good interrupt request accepted Class 2 FPTS Syntax FPTS lt ppr gt lt c gt lt blc gt lt cblc gt lt bc gt The Class 2 response is similar to the Class 2 1 response except that it may also use lt ppr gt codes 0 6 and 7 which are not used in the Class 2 1 response Table 3 1 Class 2 T 30 Post Page R
56. time and then retu es m off hook for at least a specified period of time The specified period of time is normally one half second but may be governed by national regulations ERROR is returned if MOH is not enabled Modem on Hold Initiate n 0 13 0 PMHR is an action command that causes the modem to initiate MOH with the central site modem It returns the following values to indicate what has been negotiated Valid only if MOH is enabled and the modem is off hook or in data mode Otherwise ERROR will be returned PMHR 0 Deny MOH request PMHR 1 Grant MOH request with 10 second timeout PMHR 2 Grant MOH request with 20 second timeout PMHR 3 Grant MOH request with 30 second timeout PMHR 4 Grant MOH request with 40 second timeout PMHR 5 Grant MOH request with 1 minute timeout PMHR 6 Grant MOH request with 2 minute timeout PMHR 7 Grant MOH request with 3 minute timeout PMHR 8 Grant MOH request with 4 minute timeout PMHR 9 Grant MOH request with 6 minute timeout PMHR 10 Grant MOH request with 8 minute timeout PMHR 11 Grant MOH request with 12 minute timeout PMHR 12 Grant MOH request with 16 minute timeout PMHR 13 Grant MOH request with indefinite timeout PMHR Displays the allowed values PMHR Displays the current value Modem on Hold Timer n 0 13 0 Determines if the modem will accept a V 92 Modem on Hold MOH request and will set the MoH timeout PMHT 0 Deny MOH request PMHT 1 Grant MOH req
57. to the DTE sends lt DLE gt lt ETX gt generates the ERROR message and returns to command mode All subsequent data received from the remote is discarded If the modem detects a frame abort sequence seven consecutive ones with no zero insertion while it is waiting for a frame beginning flag it was receiving HDLC flags it will wait for the HDLC flags again until either carrier is lost or the DTE aborts the process by sending an abort character or by dropping DTR with amp D2 in effect If the frame abort sequence is detected while the modem is receiving a frame it finishes delivering the data in the receive buffer if any to the DTE sends lt DLE gt lt ETX gt generates the ERROR message and returns to command mode The modem keeps looking for HDLC flags followed by more data from the remote with the selected modulation scheme If the modem detects a receive buffer overflow condition it concludes that there was an FCS error in that frame The modem will receive more frames only if a starting flag is detected and there is room in the receive buffer If a starting flag is detected and there is no room in the buffer the modem discards all data in that frame If the modem receives any character from the DTE after the FRH command except flow control characters if software flow control is in effect or if the modem detects a high to low transition of the DTR signal while amp D1 is in effect it sends lt DLE gt lt ETX gt to the DTE gene
58. would be lt CR gt lt LF gt FCl 1 234 567 8901 lt CR gt lt LF gt Class 2 FTSI FCSI FCIG Syntax FTSI lt TS ID string gt Transmit Station ID Syntax FCSI lt CSI ID string gt Called Station ID Syntax FCIG lt CIG ID string gt Polling Station ID The Class 2 responses are essentially the same as the Class 2 1 responses Report Non Standard Negotiation Frames Class 2 1 FNF FNS FNC Syntax FNF lt NSF FIF string gt Non Standard Facilities Syntax FNS lt NSS FIF string gt Non Standard Setup Syntax FNC lt NSC FIF string gt Non Standard Commands These responses report received non standard negotiation frames one response per frame These responses are generated in execution of the Originate Answer FDT and FDR commands The NSF Facsimile Information Field FIF frame octets are presented in hex notation and are separated by spaces Flags and zero bits are removed Frame octets are reported in the order received For each frame octet the LSB is the first bit sent or received Class 2 FNSF FNSS FNSC Syntax FNSF lt NSF FIF string gt Non Standard Facilities Syntax FNSS lt NSS FIF string gt Non Standard Setup Syntax FNSC lt NSC FIF string gt Non Standard Commands The Class 2 responses are essentially the same as the Class 2 1 responses Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 66 Chapter 3 Fax Class 2 Commands
59. 0 Phase C Page Reception responses 68 T 30 Phase D post page responses 169 T 30 Procedure Control Parameters esses 82 T 30 Session Error Report FAXERR 86 T 30 session parameter frames T 30 Session Parameters eese 1 30 Session Subparanieters eroe cere ttes 74 Tone Dialing command T m Tones S11 dialing i escort cene eene Transition to Data Modem FCON sss 64 Transition to Data Modem FDM 64 Transmit Break command VB 14 U Unsolicited Voice Mode Result Codes 122 upstream mode Upstream V 90 data rates 38 sss 29 V boo ER 8 V 22bis Guard Tone Control command amp G 12 v1 23 Data Calling Tone eicere 16 V 25ter GMI asorr 60 V 34 modulation S28 enabling E V 42 Error Correction sold V 42bis data compression 16 V 54 Test COMMANDS uic ect tte tert yn 13 V 92 commands CBA Callback Attempts 26 CBFR Failed Attempts Reset ssssss 26 CBI Local Callback Inactivity Timer 26 ZCBN Store Callback Password iles CBP Callback Parity eene AP Set BR P rily aso sioenbemesacimeld S Enter Setup Password ts S Store Setup Password esses 27 MS Reports Current Options sss 22 MS Modulatio
60. 00 bps VPR 3 select 7200 bps VPR 4 select 9600 bps VPR 5 select 12000 bps VPR 6 select 14400 bps VPR 7 select 16800 bps VPR 8 select 19200 bps If the modem claims support for autobauding VPR 0 it means that the modem can accept AT commands at 2400 bps at all times while in Voice command mode and with VPR 0 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 120 Chapter 4 Voice Commands Flow Control XON XOFF flow control is used by the SocketModem to match the PC to modem data rate to the line signaling rate as well as to the requirements of analog conversion of the voice signals and voice data In band uni directional XON XOFF flow control is mandatory RTS CTS V 24 circuits 106 and 133 flow control is optional per the IS 101 standard Voice Mode Result Codes In Voice mode the modem can detect and report DTMF detect call progress tone and cadence events evaluate voice quality and can monitor telco related activities Events can be reported as a single character Simple or Terse reporting a full text message Message or Verbose reporting or as a repeating pattern Pattern reporting Terse Verbose OONDOARWBNMY O Caller ID Report DID Report Distinctive Ringing RING DTMF Received Receive Buffer Overrun Facsimile Calling e g 1100 Hz Data Calling e g 1300 Hz Local Phone On Off Hook Presumed Hang Up SILENCE Time out Presumed End of Message QUI
61. 0100 0E601800 1A803840 4 S 0A000100 0E601800 1A803840 6 M 0A000100 0E601800 1A803840 OK The modem inquires about what end of voice receive silence detection capabilities are available 127 129 50 200 The modem reports that three levels of sensitivity and a time interval between 5 0 and 20 0 seconds Some time later the PC wants to transmit or receive a voice message The PC selects 1 the first compression method at 7200 sampling rate enable silence compression with nominal silence sensitivity and no silence clipping 2 report all modem supported event detection 3 set end of receive silence detection at nominal silence sensitivity setting and for 5 0 seconds Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide 8000263C 125 Chapter 4 Voice Commands AT VSM 128 7200 128 0 VEM FFFFFFFF8 VSD 128 50 OK The modem agrees AT VSM 129 7200 0 0 The PC changes its PC modem interface rate to 38400 bps and selects a OK AT VLS 4 OK AT VTX CONNECT lt Data gt lt DLE gt lt ETX gt OK AT VLS 0 OK OK Command AT FCLASS 8 AT VIT 60 VPR 16 OK compression method with the least sensitive setting with the goal of playing a message with less distortion and at 7200 samples per second Assume that the PC issued a VSM command earlier The modem agrees The modem selects the speaker The modem had earlier reported that a speaker was available The modem
62. 1G 0A000100 0E601800 1A803840 OK AT VSM 132 OK AT VEM B 0A000100 04600000 1A803040 OK AT VLS AT VSD Response The PC inquires about the compression methods and bits per sample options The modem reports two compression methods 1 PCM twelve bits per sample timing marks sampling rates of 7200 8000 and 11025 three levels of silence compression sensitivity and silence clip to 0 5 seconds 2 The same as 1 above but without silence compression 3 ADPCM two bits per sample timing marks sampling rate of 7200 no silence compression and no silence clip 128 SIGNED PCM 12 40 7200 8000 11025 127 129 0 50 129 SIGNED PCM 12 0 7200 8000 11025 0 0 132 ADPCM AQ 2 40 7200 0 0 OK The PC selects the first compression method with the intent of queuing the event detection capabilities of the modem The modem agrees Checks the modem event detection capability for the first compression method The modem reports Service Level C Selects the second compression method with the intent of querying the event detection capabilities of the modem The modem agrees Checks the modem event detection capability for the second compression method The modem reports Service Level B The modem inquires about what analog source and destinations are available The modem reports that a microphone and speaker are available 0 0A000100 0E601800 1A803840 1 T 0400
63. 26400 bps 17 28800 bps 18 31200 bps 19 33600 bps 38 decimal 0 23 1 Sets downstream data rate where V 90 provides rates of 28 000 to 56 000 bps in increments of 1 333 bps 0 V 90 disabled 1 V 90 auto rate 2 28 000 bps 3 29 333 bps 4 30 666 bps 5 32 000 bps 6 33 333 bps 7 34 666 bps 8 36 000 bps 9 37 333 bps 10 38 666 bps 11 40 000 bps 12 41 333 bps 13 42 666 bps 14 44 000 bps 15 45 333 bps 16 46 666 bps 17 48 000 bps 18 49 333 bps 19 50 666 bps 20 52 000 bps 21 53 333 bps 22 54 666 bps 23 56 000 bps Upstream data rates Upstream V 90 data rates are 4800 to 33 600 bps in 2400 bps increments S43 decimal 0 1 1 For testing and debugging only Enables disables V 32bis start up auto mode operation 0 disable 1 enable Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 29 Chapter 1 AT Commands S Registers and Result Codes S48 decimal 70r128 7 Enables 7 or disables 128 LAPM negotiation The following table lists the S36 and S48 configuration settings for certain types of connections S48 7 S48 128 S36 0 2 LAPM or hang up Do not use 36 1 3 LAPM or async Async S36 4 6 LAPM MNP or hangup MNP or hang up S36 5 7 LAPM MNP or async MNP or async S89 seconds 0 5 255 10 Sets the length of time in the off line command mode before the modem goes into standby mode or sleep mode A value of zero
64. 300 bps B16 Select Bell 103J when the modem is at 300 bps Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 8 Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Command Values Default Description Ds DSzy En Fn Hn Chapter 1 AT Commands S Registers and Result Codes Dial S dial string phone number and dial modifiers none Dial telephone number s where s may up to 40 characters long and include the 0 9 B C and D characters and the L P T V W S comma semicolon l 9 and dial string modifiers Dial string modifiers Redial last number Must be placed immediately after ATD Pulse dial following numbers in command Tone dial following numbers in command default Switch to speakerphone mode and dial the following number Use ATH command to hang up Wait for a new dial tone before continuing to dial X2 X4 X5 X6 or X7 must be selected Pause during dialing for time set in register S8 Return to command mode after dialing Place at end of dial string Hook flash Causes the modem to go on hook for one half second then off hook again Wait for quiet answer Causes modem to wait for a ringback then 5 seconds of silence before processing next part of command If silence is not detected the modem returns a NO ANS
65. 5 0 3 09 IN Two contiguous DLE DLE codes indicate a single DLE in the data stream lt DLE gt lt DLEs gt in the data stream End Data State signifies the end of voice data Can end with Event 9 Presumed Hang Up Timeout Event 10 Presumed End of Message Event 13 Loop Current Interruption Event 14 Loop Current Polarity Reversal Event 19 BUSY or Event 20 DIALTONE Data stream shielded Xon character Used in the VXT command to shield XON characters in the full duplex data stream and in the Packet Protocol The VXT command is not supported by the MT5634SMI ITP Data stream shielded Xoff character Used in the VXT command to shield XOFF characters in the full duplex data stream and in the Packet Protocol Data stream shielded SOH code used for the Packet Protocol Data stream shielded ETB code used for the Packet Protocol Data stream shielded ACK code used for the Packet Protocol Data stream shielded NAK code used for the Packet Protocol Data stream shielded ENQ code used for the Packet Protocol Timing Mark Packet Header for the Complex Event Detection Report additional event data transfers to the DTE Packet Terminator for the Complex Event Detection Report additional event data transfers to the DTE Start of DTMF tone shielding DTMF transitions to off Event Number 3 RING The DLE shielded version of the RING result code Event Number 4 DTMF 1 Event Number 4 Event Number
66. 65 Repeat Last command A eese 8 Report Addressing or Password Strings Responses FSA SEBA DEP E E ONERE 67 Report DIS DCS DTC Frame Information responses SPUS EPIS PB UG oa ausis oae ettet idet 65 Report Event Reporting and Masking Capabilities command VEM essent 118 Report Frequency Support command VTS Report Manufacturer s ID command FMT 107 Report Modem Flow Control Assert and Deassert Points command VBI ues eet trementes 119 Report Non Standard Negotiation Frames responses HEINE ENS ENG cecinit rette tette ent 66 Report Product ID command FMM 107 Report Received HDLC Frames response 93 Report Remote ID responses Report Transmit HDLC Frames response Report Version Level command FMR 107 Report Voice Compression Method command VSM Hn 115 Request Manufacturer ID FMI eese 60 Request Manufacturer Identification command 60 Request Model ID P MIM certet ttr 60 Request Model Identification command 60 Request Revision ID FMR 60 Request Revision Identification command 60 Request to Poll ESP n esee csseenke nee doa 78 Resetting the modem ho Result Code Format command V
67. 72 72 COMREC error 73 73 T 30 T2 timeout expected page not received 74 74 T 30 T1 timeout after EOM received 90 9F 90 99 Receive Phase C hang up codes 90 90 Unspecified receive Phase C error 91 91 Missing EOL after 5 seconds 92 Bad CRC or frame ECM mode 93 93 modem to host buffer overflow 94 Bad CRC or frame ECM or BFT mode AO BF 100 119 Receive Phase D hang up codes AO 100 Unspecified receive Phase D errors Al 101 RSPREC invalid response received A2 102 COMREC invalid response received A3 103 Unable to continue after PIN or PIP CO DF 120 255 Reserved for future standardization EO FF Reserved for manufacturer specific use Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 71 Chapter 3 Fax Class 2 Commands Parameter Commands All Class 2 parameters can be read written and tested for the range of legal values by the modem The general syntax is described in the AT Command section of this Chapter T 30 Session Parameters Group 3 fax devices negotiate session parameters in the DIS DCS and DTC frames The following parameters are provided to condition the fax modem for the capabilities it will offer and to report the negotiated session settings The three primary T 30 session parameters are FCC FDCC FIS FDIS and FCS FDCS described in 2 5 1 1 2 5 1 3 These are compound parameters using values listed in Table 3 5 The Figure below illustrates their relationships
68. 770Hz and 1336Hz The frequencies were chosen to avoid harmonics no frequency is a multiple of another the difference between any two frequencies does not equal any of the frequencies and the sum of any two frequencies does not equal any of the frequencies For additional information on DTMF see the Telecommunications Industry Association s Web site at http www tiaonline org resources other_links cfm AT FCLASS lt Enter gt Display Service Class Capabilities 0 1 other values are reserved 0 OK if the command is accepted ERROR if the parameter value is out of range The FCLASS command displays the set of Service Classes supported by the modem from the list of values e g 0 1 for a modem that supports data comm plus fax Service Class 1 This command returns the service class or classes available with the modem The modem returns a list of all supported values separated by commas if more than one class is supported For example a modem that supports data communications Class 1 Fax Class 2 Fax and Voice mode functions would respond with 0 1 2 0 8 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 106 Command Values Result Codes Description Command Values Default Result Codes Description Command Result Codes Description Command Result Codes Description Command Values Description Command Values Description Chapter 4 Voice Comm
69. 8 56K Operation Digital Loss ET 811 Dialing Tones ononon isisisi ineas S28 V 34 Modulation esses S3 Carriage Return S30 Inactivity Timer 835 V 25 Calling Tone ER 520 Error Cono eiae ees Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 135 537 Maximum Speed eerte treten 29 S38 Downstream Data Rate sess 29 S4 Line Feed Character eene 28 843 Testing and Debugging 29 S48 Error Control 2 eee terit eterne tnene 30 S5 Backspace Character sss 28 S6 Wait Time for Dail Tone sets S7 Abort TIBMBE cccccsnccsscssisssdstissiascesssanssecsecsntereascie 28 POs COMIN MM T m S89 Standby S9 Remote Configuration Escape Character 129 S9 Remote Configuration Escape Character 28 CIT ur RPM E Standby mode delay time S89 EP Start Voice Transmission Process command VTX 110 Store Callback Password command ZCBN 19 26 Store Dialing command amp Z Store Dialing Command 14 Store Setup Password command S us 27 Store Setup Password command ZS 20 String Parei eters uue cain teret eerte 51 T T 30 Phase A negotiation responses eee 64 T 30 Phase B negotiation responses sssssss 65 T 3
70. 98 dpi vertical resolution 3 BR 9600 bit s 0 WD 1728 pixels 2 LN unlimited length 0 DF 1 D modified Huffman coding 0 EC no ECM 0 BF no BFT 1 ST 5 ms scan time 0 JP no JPEG Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 74 Chapter 3 Fax Class 2 Commands Table 3 5 T 30 Session Subparameter Codes Note Class 2 0 2 1 is shown in hexadecimal values Class 2 is shown is decimal values Label Function Class 2 0 2 1 Class 2 Description VR Vertical 00h 0 R8 x 3 85 I mm 98 dpi Normal resolution Oth 1 R8 x 7 7 I mm 196 dpi Fine 02h R8 x 15 4 I mm Note 1 04h R16 x 15 4 I mm 08h 200 dpi x 100 1 25 4 mm 10h 200 dpi x 200 1 25 4 mm 20h 400 dpi x 400 1 25 4 mm 40h 300 dpi x 300 1 25 4 mm Class 2 1 only BR Bit rate FCC FIS description FCS description Oh 0 2 400 bit s preferred 2 400 bit s selected Note 2 th 1 4 800 bit s preferred 4 800 bit s selected 2h 2 7 200 bit s preferred 7 200 bit s selected 3h 3 9 600 bit s preferred 9 600 bit s selected 4h 12 000 bit s preferred 12 000 bit s selected 5h 14 400 bit s preferred 14 400 bit s selected all with V 8 optional V 34 bit rate 6h 16 800 bit s preferred 16 800 bit s selected Class 2 1 7h 19 200 bit s preferred 19 200 bit s selected only 8h 21 600 bit s preferred 21 600 bit s selected 9h 24 000 bit s preferred 24 000 bit s selected Ah 26 400 bit s preferred 26 400 bit s s
71. Attempts Display CBFR Callback Failed Attempts Reset CBIn Local Callback Inactivity Timer CBNy n Store Callback Password CBPn Callback Parity CBRy Callback Security Reset CBSn Callback Enable Disable Pn Set 11 bit Parity Sx Enter Setup Password S x Store Setup Password VDR x y Distinctive Ring Report AT lt CR gt Escape Sequence ATMTSMODEM lt CR gt Remote Configuration Escape Sequence V 92 Commands Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 7 Chapter 1 AT Commands S Registers and Result Codes AT Commands Command Values Description Command Values Description Command Values Description Command Values Description Command Values Default Description AT A Bn Attention Code N A The attention code precedes all command lines except A A and escape sequences ENTER Key N A Press the ENTER RETURN key to execute most commands Answer N A Answer call before final ring Repeat Last Command N A Repeat the last command string Do not precede this command with AT Do not press ENTER to execute Communication Standard Setting n 0 3 15 16 0 and 15 BO Select ITU T V 22 mode when modem is at 1200 bps B1 Select Bell 212A when modem is at 1200 bps B2 Deselect V 23 reverse channel same as B3 B3 Deselect V 23 reverse channel same as B2 B15 Select V 21 when the modem is at
72. C D FECE RR a 128 Chapter 5 Remote Configuration and Country Code Configuration 129 sino aE ea e UIS E TA d oddetid orca E ER sea duxi udo Dude cel E ud asd eA ode d wade 129 BE I NR e Mr 129 voca Mq EN I T EMT 129 Gouniy Code derer og T T T m UU I T TT 130 teing tie Gopal Wizard ONN TRE T o IT 130 UENO AT COMMAS T exit ice Midis nce Malu Onoda Dian Kae eS 130 DNDN dee cetacean 131 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 4 Chapter 1 AT Commands S Registers and Result Codes Chapter 1 AT Commands S Registers and Result Codes Introduction The AT commands are used to control the operation of your modem They are called AT commands because the characters AT must precede each command to get the ATtention of the modem AT commands can be issued only when the modem is in command mode or online command mode e The modem is in command mode whenever it is not connected to another modem e The modem is in data mode whenever it is connected to another modem and ready to exchange data Online command mode is a temporary state in which you can issue commands to the modem while connected to another modem e To put the modem into online command mode from data mode you must issue an escape sequence followed immediately by the AT characters and the command e g ATH to hang up the modem To return to d
73. CT send flags detect flags get CRF frame receive CFR send FCS lt CFR frame data gt drop carrier lt DLE gt lt ETX gt OK final frame AT FTM 96 CONNECT detect carrier send V 29 carrier lt page image data gt receive page send page data lt DLE gt lt ETX gt detect loss of carrier drop carrier NO CARRIER wait 75 ms CONNECT detect carrier send V 21 carrier lt EOP frame data gt detect flags send flags lt DLE gt lt ETX gt receive EOP send EOP frame NO CARRIER receive FCS send FCS accept FCS frame OK Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 46 Chapter 2 Fax Class 1 and 1 0 Commands DTE Commands Modem Responses Local Modem Action Remote Station Action Notes AT FRH 3 NO CARRIER detect loss of carrier drop carrier AT FRH 3 send V 21 carrier detect carrier CONNECT send flags detect flags lt MCFame data gt get MCF frame receive MCF frame lt DLE gt lt ETX gt send FCS accept FCS OK final frame AT FRH 3 detect carrier send V 21 carrier CONNECT detect flags send flags lt DCN frame data gt receive DCN send DCN frame lt DLE gt lt ETX gt receive FCS send FCS OK accept FCS frame OK AT FRH 3 NO CARRIER detect loss of carrier drop carrier end of session ATHO OK hang up Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 47 Chapter 3 Fax Class 2 Commands Chapter 3 Fax Class 2 and 2 0 2 1 Commands Introd
74. Command Values Result Codes Description Command Description Example Command Values Result Codes Description VBT lt deassert gt lt assert gt Set Modem Flow Control Assert and Deassert Points assert and lt deassert gt are buffer offsets from the start of the buffer The buffer s first position is 0 The offset units are octets OK if the modem accepts the command ERROR if either the assert or lt deassert gt parameter is greater than the buffer size or if the lt de assert gt parameter is greater than or equal to the assert value The VBT command is used to set the flow control assert and deassert points inside the modem s internal transmit buffer As data is sent from the PC to the modem and is stored in the modem s buffer when the number of octets in the buffer equals the assert value the modem asserts flow control to the PC e g turns off CTS circuits or sends an XOFF character As the modem removes data from the buffer and processes the data when the number of octets in the buffer equals the lt deassert gt value the modem de asserts flow control e g turns on CTS circuits or sends an XON character The modem may inform the PC using the VBT command that the PC does not permit the modifying of the flow control assert and deassert points by returning a single value not in the range of values for each control point The VBT command controls the amount of skid in the m
75. Control Selection command amp K 12 Flow Control Selection command Q m frame information ssessseseeeeerenneeee rennen G GrlsBal Wat aue esent t Ert tn ie enden 130 Guard Tone Control command sess 12 H H ndshake n oennesesd tiaras ei pee ies 10 Hanpup COMMA uses sse nt renta et reae ror he hne 9 Hook Control command H Hose Phase C Response Time Out FPHCTO 85 Host Phase C Response Timeoout 85 Index l identification conumahtds iu sese irons 59 Identify Analog Source Destination Configuration and Event Reporting Capabilities command VLS 112 Inactivity fimer 30 eee retentu eter eren 28 Inactivity Timer command VT sse 15 Indicate Document to Poll FLP 78 Information Request command I 10 Initialization strings teens 5 Initialize Fax Parameters 5263 Initialize Fax Parameters FIP ee 63 Initialize Voice Parameters command VIP 107 Interface Configuration commands VBT Modem Flow Control Assert amp Deassert 119 VBT Report Modem Flow Control 119 VPP Enable Disable Voice Mode 119 VPR Select DTE DCE Interface Rate 120 Interface Configuration Commands 119 L Leased Line Operation command
76. ET Post Page Message response FET End the Page or Document command FHS Call Termination Status response FHR Report Received HDLC Frame response FHT Report Transmitted HDLC Frame response FKS Orderly Fax Abort command FLI Local ID String parameter TSI CSI FLNFC Page Length Format Conversion parameter FLO Fax Flow Control FLP Document for Polling parameter FMM Request modem Model Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 100 Chapter 3 Fax Class 2 Commands Name Description FMI Request modem Manufacturer FMS Minimum Phase C Speed parameter FNC Report NSC Frame response FNF Report NSF Frame response FNS Report NSS Frame response FCT Phase C Timeout parameter FPO Remote Polling Indication FPS TX Page Transfer Status response FPS Page Transfer Status parameter FMR Request modem Revision FEA Phase C EOL Alignment parameter FSP Enable Polling parameter FTI Report Remote ID response TSI FVO Transition to Voice response FV Prefix Output On Query response FVRFC Vertical Resolution Format Conversion parameter FWDFC Page Width Format Conversion parameter FTBC Phase C Transmit Byte Count FRBC Phase C Receive Byte Count Multi Tech Systems Inc SocketModem MT5634SMIxx Refere
77. ET Time out SIT Tone CO Standard Information Tones sent to pay phones Bong Tone Calling Card Tone Loop Current Interruption Loop Current Polarity Reversal Call Waiting Beep Interrupt Distinctive Call Waiting TDD Detected e g 1400 1800 Hz Ring Back Remote Ring BUSY DIALTONE Reorder Fast Busy V 21 Channel 2 7E Flags Transmit Buffer Under Run Extension Phone On Off Hook Facsimile or Data Answer e g 2100 Hz Data Answer e g 2225 Hz Voice Detect Call Waiting Plus Caller ID Stuttered Dial Tone Invalid Voice Data Format Lost Data Detected Event Facsimile Answer 33 63 Reserved for future standard above 63 Manufacturer specific Further study required for final specification The TIA EIA 602 CONNECT result code is disallowed in voice mode Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 121 Chapter 4 Voice Commands Unsolicited Voice Mode Result Codes The form of the unsolicited result codes for voice mode is different from standard modem Command mode result codes The V specification refers to these voice mode result codes as event detection reports Event detection reports are provided in simple report format when one character is enough to report an event such as RING A complex report format is used when one character is not enough to report an event generally all multi character responses Complex event reports are in the format lag lt gt data
78. Ic blc cblc response The host may modify this result before it issues the next action command e g FDR which releases the corresponding post page response to the remote facsimile station Class 2 FPTS Write syntax FPTS lt ppr gt Valid values 1 2 3 4 5 Default value 1 Except for the name and the range of values the Class 2 parameter is identical to the Class 2 1 parameter Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 82 Chapter 3 Fax Class 2 Commands Copy Quality Checking Class 2 1 Write syntax Values Default Class 2 Write syntax Default value FCQ FCQ lt rq gt lt tq gt 0 1 for rg 0 for tq 1 for rg 0 for tq Other values for rq and tq are not supported in the Multi Tech implementation The FCQ parameter controls copy quality checking and correction by a facsimile modem The rq subparameter controls copy quality checking and correction of data received from the remote station and delivered to the local host the tg subparameter controls copy quality checking and correction of image data received from the local host and sent to the remote station The modem reports on Received Copy Quality to the host in the page status report FPS ppr lc blc cblc Ibc and records it in the FPS parameter FCQ 0 0 modem receive copy quality checking is disabled the modem will generate copy quality OK
79. LASS 0 Class 2 1 FCLASS A modem s current Service Class setting is tested by the FCLASS command The response is a single value Class 2 FCLASS Class 2 1 Class 2 Same as Class 2 1 Service Class Capabilities FCLASS The Service Classes available from a modem are tested by the FCLASS command The response is a string of values separated by commas A Class 2 1 MultiModem can respond Example lt CR gt lt LF gt 0 1 2 1 0 2 0 2 1 8 lt CR gt lt LF gt OK lt CR gt lt LF gt FCLASS A Class 2 MultiModem responds similarly however older Multi Tech modems that do not support Class 2 1 report fewer options Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 59 Chapter 3 Fax Class 2 Commands Service Class Selection Class 2 1 Class 2 FCLASS lt value gt The Service Class may be set by the host from the above choices using the FCLASS lt value gt command Once the result code is received from the modem FCLASS lt value gt Same as Class 2 except for the FPR command In Class 2 the serial port rate is set by the speed at which the dial command is given when originating a fax call the speed at which the answer command is given when manually answering a fax call or the speed at which the last command is received before automatically answering the call Request Manufacturer Identification Class 2 1 Class 2 FMI The FMI command executes the V
80. LI lt local ID gt Set local ID host may load a local ID ATD lt dial string gt off hook dial answer Modem Local Modem Responses Action Host Commands AT FNS lt hex NSS FIF string gt AT FDT st page data gt lt RTC pattern gt lt DLE gt lt mps gt AT FDT lt 2nd page data gt lt RTC pattern gt lt DLE gt lt eop gt FCO FNF lt nsf gt FCI lt csi gt FIS lt dis codes gt OK FCS lt codes gt CONNECT CONNECT send CNG detect flags get NSF get CSI get DIS send NSS send PWD send SUB send TSI send DCS send TCF get CFR send carrier send page data send RTC send MPS get MCF send carrier send 2nd page send RTC send EOP get MCF send DCN hang up send CED preamble NSF CSL DIS get NSS get PWD get SUB get TSL get DCS get TCF send CFR get carrier get data get RTC get MPS send MCF receive carrier get 2nd page get RTC get EOP send MCF get DCN hang up OK host may respond to NSF frame if FNS loaded if FPW loaded if FSA loaded if FLI loaded Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 96 Chapter 3 Fax Class 2 Commands Receive two pages 1 D data no errors Class 2 0 In this example the remote station sends NSS SUB PWD and TSI The local modem has FNR 1 1 1 1 and FAP 1 1 1 Host Modem Local Modem Commands Responses Action Enable Rec
81. MTSMODEM Enters the callback security setup password Store Setup Password x password 1 8 characters case sensitive MTSMODEM Stores a new callback security and remote configuration setup password Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 27 S Registers Certain modem values or parameters are stored in memory locations called S Registers Use the S command to read or to alter the contents of S Registers see previous section Register Unit S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 10 11 28 30 35 S36 1 ring 1 ring decimal decimal decimal decimal seconds seconds seconds decimal 100 ms 1ms decimal 1 minute decimal decimal Range 0 1 255 0 255 0 127 128 255 0 127 0 127 0 32 33 127 2 65 35 65 0 65 0 1 127 1 254 50 150 0 1 255 0 1 255 Default 1 0 43 13 M 10 J 8 H 2 50 37 20 95 Chapter 1 AT Commands S Registers and Result Codes Description Sets the number of rings until the modem answers ATSO 0 disables auto answer completely Counts the rings that have occurred Sets ASCII code for the escape sequence character Values greater than 127 disable escape Sets the ASCII code for the carriage return character Sets the ASCII code for the line feed character Sets the ASCII code for the backspace character Values greater
82. Mandatory values Default value Null String The modem generates a TSI or CSI frame if FLI is not a Null String Table 3 T 30 includes digits 0 9 the character and the space character The modem transmits ID string characters to the remote station in reversed time order from the order in the command line For example if the command line AT FLI 1 234 567 8901 CR is issued the modem would send a CSI or TSI rame with FIF hexadecimal consisting of lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 20 gt lt 31 gt lt 30 gt lt 39 gt lt 38 gt lt 20 gt lt 37 gt lt 36 gt lt 35 gt lt 20 gt lt 34 gt lt 33 gt lt 32 gt lt 20 gt lt 31 gt lt 2B gt If less than 20 characters are specified in a non Null String the modem appends space characters 20 If the specified string is more than 20 characters in length an ERROR result code is generated FLID FLID lt ocal ID string gt 20 character printable ASCII string 20 character string Table 3 T 30 Null String The Class 2 parameter is essentially the same as the Class 2 1 parameter Local Polling ID String Class 2 1 Write syntax Values Mandatory Values Default Class 2 Write syntax Values Mandatory Values Default FPI FPl lt ocal polling ID string gt 20 character printable ASCII string 20 character string Table 3 T 30 Null String The modem generates a CIG frame if FPI is not a Null String CIG is used in polling se
83. Modem MT5634SMIxx Reference Guide S000263C 22 Chapter 1 AT Commands S Registers and Result Codes max rale An optional number that specifies the highest rate at which the modem may establish an upstream transmit connection The value is decimal coded in units of bps for example 33600 specifies the highest rate to be 33600 bps 0 Maximum rate determined by the modulation selected in mod default 300 33600 Maximum rate value limited by the modulation selected in mod For valid max rate values for each mod value see the following table mod value Valid max rate values bps V92 V90 V34 31200 28800 26400 24000 21600 19200 16800 14400 12000 9600 7200 4800 2400 V32B 19200 16800 14400 12000 9600 7200 4800 V32 14400 12000 9600 7200 4800 V22B 2400 V22 V23C Bell212A 1200 V21 Bell103 300 max rx rate An optional number that specifies the highest rate at which the modem may establish a downstream receive connection The value is decimal coded in units of bps e g 28800 specifies the highest rate to be 28800 bps 0 Maximum rate determined by the modulation selected in mod default 300 56000 Maximum rate value limited by the modulation selected in mod See Possible rates in the mod table Command PCW n Values Default Description Command PIG n Values Default Description Command PMH n Values Default Description Call Waiting E
84. Modem is off hook and connected to Telco Local phone provided with power to detect hook condition 10 MS1T Internal microphone and external speaker connected to Telco Squelching active Modem is off hook and connected to Telco Local phone provided with power to detect hook condition 11 M1 External microphone connected to modem Modem is off hook Local phone connected to Telco 12 M1ST External microphone and internal speaker connected to Telco Squelching active Modem is off hook and connected to Telco Local phone provided with power to detect hook condition 13 M1S1T External microphone and external speaker connected to Telco Squelching active Modem is off hook and connected to Telco Local phone provided with power to detect hook condition 14 H External microphone and speaker combination handset or headset connected to modem Modem is off hook Local phone connected to Telco Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide 8000263C 111 Command Result Codes Description Command Values Default Result Codes Description Command Values Default Result Codes Description Chapter 4 Voice Commands 15 HT External microphone and speaker combination headset or handset connected to modem Modem is off hook and connected to Telco Local phone provided with power to detect hook condition VLS Identify Analog Source Destination Configuration and Event Reporting Ca
85. NNECT 33600 70 CONNECT 32000 71 CONNECT 34000 72 CONNECT 36000 73 CONNECT 38000 74 CONNECT 40000 75 CONNECT 42000 76 CONNECT 44000 77 CONNECT 46000 78 CONNECT 48000 79 CONNECT 50000 80 CONNECT 52000 81 CONNECT 54000 82 CONNECT 56000 83 CONNECT 58000 84 CONNECT 60000 86 CONNECT 16800 87 CONNECT 115200 88 DELAYED 89 BLACKLISTED 90 BLACKLIST FULL 91 CONNECT 230400 100 CONNECT 28000 101 CONNECT 29333 102 CONNECT 30666 103 CONNECT 33333 104 CONNECT 34666 105 CONNECT 37333 106 CONNECT 38666 107 CONNECT 41333 108 CONNECT 42666 109 CONNECT 45333 110 CONNECT 46666 111 CONNECT 49333 Description Command executed Modem connected to line Ring signal detected Carrier signal lost or not detected Invalid command Connected at 1200 bps No dial tone detected Busy signal detected No answer at remote end Connected at 75 bps Connected at 2400 bps Connected at 4800 bps Connected at 9600 bps Connected at 14400 bps Connected at 19200 bps Connected at 57600 bps Connected at 7200 bps Connected at 12000 bps Connected at 38400 bps Connected at 300 bps Connected at 21600 bps Connected at 24000 bps Connected at 26400 bps Connected at 28800 bps Connected at 31200 bps Connected at 33600 bps Connected at 32000 bps Connected at 34000 bps Connected at 36000 bps Connected at 38000 bps Connected at 40000 bps Connected at 42000 bps Connected at 44000 bps Connected at 46000 bps Connected at 48000 bps Connected at 50000 bps Connected at
86. PL Redguest to POU occ shores nm teres 78 TETISE RBepor Remote ID eee es 66 A Answer a Call Copy Quality Checking FCQ D Originate a Call Class 2 commands FDFFC Data Compression Format Conversion 89 Class 2 commands FLO Fax Flow Control eeeeeeee 90 Class 2 commands FBU Buffer S126 eoe ettet eee 92 Class 2 Commands AITFTD Set Time amp Date ees 91 Class 2 Commands FDCS Current Session Results 73 FLID Local ID String erret TI Class 2 Commands AT FPH Page Header Generation 91 Class 2 Commands FHT Report Transmit HDLC Frames 93 Class 2 0 2 1 commands 1 FVRFC Format Conversion eeeenee 88 Class 2 1 commands HPDR Data Reception eee eet ttti FAA Adaptive Answer essere FAP Address amp Polling Capabilities us FBU Session Message Reporting FCC Modem Capabilities Parameters 72 FCI Report Remote ID 66 FCLASS Service Class Selection 60 FCLASS Service Classes Available 59 FET Post Page Message d FHS Call Termination with Status 69 SEMDNT L sete eire n FMR Request Revision ID sess FNC Report Non
87. S NUR Pr ENA 64 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 3 Table of Contents T SD Phase B Negolaton PIOADONBNE siet tmn sedi dpi xad ada mebok i PARURE LEY einen Neas nn Eni ok Niiranen 65 130 Phase Fage Reception FIBSDORBOE ius me ped Elea stan vedensiudnediandendd nine ERA RF RUE Aiii Neia 68 TD Phase D Fost Fago Respong oSer abr ep eai de One eite kN uda bd Rt NR EG e dde 69 Ca Term apo MEET S E ia irte ion ut Dex re tor at Aa Pria Pans 69 Panne JR FILIUS LEO CT S 72 LO NON EA RETE S aiiai eaa e LH iiestecPatbsta Madde a Morale i E Mi birds 72 T20 POR OOS Control Faramello seii net ree eco tere n aA aa 82 Phasa C Data Format Parama a raria riai aea i N N ANA A 87 Mises OU F arain S o setas ioo terre reinen Disk nuces ca breed rev es ic a ED n d Pea PREX ed 92 Besson ibssage Repor Respon annica a etui Lis p iebsis AERE 93 campe Modem CONTI GES a RETE EE 94 Send mW pages TL data HO GIONS GES 2 SS 94 Receive lwo pages 1 D dala no errors CIass 2 isszesscecsssciasnznvenisecientianrseessecesssnsdayatiausetiosnsanrseraneons 95 Send two pages T L data no emors ORSS EO eere riter prs q s Ear a AARNA AEEA NEES 96 Receive two pages 1 D dala no errors Class 2 0 iius a entrar tse rin Pe ka REL I SEE ERR RA ERES EIE 97 Originate and send a two page facsimile with V 34 half duplex Class 2 1 sss 98 Answer and receive a two page facsimile with V 34 half duplex Class 2 1
88. Same as Class 2 1 Session Termination Class 2 1 Syntax Class 2 Syntax FKS FKS The FKS command causes the modem to terminate the session in an orderly manner by sending a DCN message at the next opportunity and hanging up At the end of the termination process the modem will report the FHS response with a result code go on hook and set FCLASS 0 This operation can also be invoked by using the CAN cancel character during Phase C data reception FK FK Essentially the same as Class 2 1 Initialize Facsimile Parameters Class 2 1 Syntax Class 2 FIP FIP The FIP command causes the modem to initialize all Service Class 2 0 2 1 facsimile parameters to the default settings This command does not change the setting of FCLASS It has the same effect as if the host had issued individual parameter setting commands MultiModem modems do not support multiple profiles and thus do not support the optional FlP lt value gt syntax documented in T 32 There is no equivalent command in Class 2 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 63 Chapter 3 Fax Class 2 Commands Modem Responses The modem sends information responses to the host as a facsimile session proceeds Responses convey needed information and indicate the state of the facsimile session These responses are solicited messages generated in execution of host action commands described in Action Comm
89. Selection command ees Session Message Report Responses ET Session Message Reporting FBU sss Session Termination FKS sss Session Termination command Set 11 bit Parity command ZP sssuss Set Cument Time amp Dale eee tts teenin Set DTE DCE Inactivity Timer command VIT 110 Set Modem Flow Control Assert and Deassert Points command FV BTA euius eere creat rane ea reni 119 Set Register Value command STS sss 11 Set Ring Back Goes Away Timer command VRA 112 Set Ring Back Never Appeared Timer command VRN erea d niei men RETRO URS SEES 112 Set Silence Detection Sensitivity command VSD 113 Set the Gain for Received Voice Samples command 2 c5 io Noc Mp RD BP M NE 110 Set the Volume for Transmitted Voice Samples command ic EE 110 SOUP PASS WOT nsss issor asse decere ENSEN eren pn entere aep 129 Setup password changing sss 129 sleep mode S89 Speaker Mode commaand 2 eter etctitnens 10 Speed MAORI ST TR 29 Speed conversion data buffer ceccescceseeseeeeeeeeeeeee 13 S registers 02 Escape SOIT S secs ei terere reote e terere 28 lago C 28 OMIM PP 11 SO Sets Number of Rings 28 B1 Counts RNg eee teen eerte tie creto 28 S10 Carrier Loss Disconnect Time 28 S10
90. Short Phase 2 PQC 3 Disables Short Phase 1 and Short Phase 2 PQC Displays the allowed values PQC Displays the current value Caller ID Selection n 0 1 or2 0 Enables Caller ID detection and configures the reporting and presentation of the Caller ID data that is detected after the first ring The reported data includes the date and time of the call the caller s name and number and a message Set S0 2 VCID 0 Disables Caller ID VCID 1 Enables Caller ID with formatted data VCID 2 Enables Caller ID with unformatted data VCID Displays the allowed values VCID Displays the current value Distinctive Ring Report X 0 1 Distinctive Ring report control See description y 0 255 Minimum ring interval in 100 ms units See description 0 0 Enables reporting of ring cadence information to the DTE and specifies the minimum ring cadence that will be reported Report format is one line per silence period and one line per ring period The length of the silence period is in the form DROF number in units of 100 ms lt CR gt lt LFs gt and the length of the ring is in the form DRON number in units of 100 ms lt CR gt lt LF gt The modem may produce a Ring event code after the DRON message if enabled by the y parameter The y parameter must be set to a value equal to or smaller than the expected ring cadence in order to pass the report to the DTE VDR 0 WA Disables Distinctive Ring cadence reporting VDR 1 0 Enables Distincti
91. SocketModem M T5634SMI V 34 amp V 92 AT Commands Fax Class 1 Commands Fax Class 2 Commands Voice Commands Reference Guide Multi lech Systems Copyright and Technical Support SocketModem Reference Guide Serial MT5634SMI 34 MT5634SMI 92 Parallel MT5634SMI P 92 Medical Device MT5634SMI HV 92 MT5634SMI P HV 92 Industrial Temperature MT5634SMI ITP 92 MT5634SMI P ITP 92 PN S000263C Version C Copyright This publication may not be reproduced in whole or in part without prior expressed written permission from Multi Tech Systems Inc All rights reserved Copyright 2003 4 by Multi Tech Systems Inc Multi Tech Systems Inc makes no representations or warranties with respect to the contents hereof and specifically disclaim any implied warranties of merchantability or fitness for any particular purpose Furthermore Multi Tech Systems Inc reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of Multi Tech Systems Inc to notify any person or organization of such revisions or changes Revisions Revision Level Date Description A 08 09 02 First release Includes global configuration and V 92 protocol B 06 27 03 Add V 34 documentation Updated the Serial Test Demo Board graphic Updated the parts list Updated Flash Programming Protocol Updated Telecom Approvals and Country Codes Changed the product name from ModemModule to SocketModem
92. Standard Negotiation Frames 66 FNF Report Non Standard Negotiation Frames 66 FNR Negotiation Reporting ssseeess 80 FNS Report Non Standard Negotiation Frames 66 FPA Addressing amp Polling Frames 81 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide 8000263C 132 FPA Report Addressing or Password Strings 67 FPI Local Polling ID String sse TI EPI Report Remote ID 5 5 o 2o c666ng79 66 FPO Remote Polling Indication 65 BPS Page Transfer Statua cerent 82 FPS Receive Page Transfer Status 68 FPW Addressing amp Polling Frames 81 FPW Report Addressing or Password Strings 67 FRQ Receive Quality Thresholds FSA Addressing amp Polling Frames ae Be MEE 67 FSP Request t Pell nte eere 78 FTC Report DIS DCS DTC Frame Information 65 FTI Report Remote ID D Originating a Call sss Class 2 1 Commands FCS Current Session Results 273 ELI Local ID String sues secreta und FNS Non standard Frame FIF Octet String 78 Comma setting pause time S8 sss 28 Command Execution Mode Command MOIS es erento etr ka bino ete pea ran Command Speed Respo
93. T6 standard in the case of MMR compression When data is sent to the modem single DLE characters ASCII 10h are replaced by two DLE characters and for Class 2 fax only the end of the fax page is indicated by a DLE ETX sequence ASCII 10h followed by ASCII 03h When data is sent to the modem single DLE characters ASCII 10h are replaced by two DLE characters and the end of the fax page is indicated differently in different fax standards in Class 2 end of page is indicated by a DLE ETX sequence ASCII 10h followed by ASCII 03h in Class 2 0 and Class 2 1 end of page is indicated by DLE EOP ASCII 10h ASCII 2Eh DLE MPS ASCII 10h ASCII 2Ch DLE EOM ASCII 10h ASCII 3Bh When the connect response is initiated by a FDR command any data received from the modem after the connect response is data received from the transmitting fax modem This data is a compressed bit map for the page being received formatted according to ITU T standard T 4 or according to the T6 standard in the case of MMR compression When data is received from the modem DLE DLE character sequences are replaced by a single DLE character The DLE ETX character sequence indicates that the end of the fax page has been received Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 52 Chapter 3 Fax Class 2 Commands The baud rate between the host and the fax modem should be at least 20 percent faster than the negotiated baud rate at wh
94. The lt LR gt character is optional The modem may produce a Ring event code after the DRON message if enabled by the lt report gt parameter The lt report gt parameter should be set to a value larger than the expected off times within a single pattern so that the Ring event reports are issued only during the off times between the complex patterns lt enable gt lt report gt Description 0 N A The modem will not generate ring cadence reports Other call progress event codes including Ring are reported as normal 1 0 The modem only produces DROF and DRON messages Other call progress result codes including RING are reported as normal 1 non zero The modem only produces DROF and DRON messages The RING result code is displayed after the falling edge of the ring pulse i e after the DRON report 2 255 non zero Reserved for future standards Example The lines below shows a cadence with an off time of 4 0 seconds an on time of 0 8 seconds an off time of 0 4 seconds and an on time of 0 8 seconds The RING result code is displayed 0 5 seconds after the last DRON message The command to enable this sample sequence is VDR 1 5 as shown below DLE X ROF 40 pel o T ROF 4 RON 8 G DLE gt lt gt DLE gt lt X gt ROF 40 RON 8 DROF 4 DRON 8 RING lt DLE gt lt gt DAADVUUVUUY H O Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 116 Comm
95. Voice Mode Shielded Codes The data value for the SITT tag in the format lt SITT gt lt gt lt data gt lt cr gt where data can mean ICNT Intercept Tone VCCT Vacant Code Tone REOT Reorder Tone NCDT No Circuit Detected Tone TON4 Fourth SIT Tone Number TONS Fifth SIT Tone Number TON6 Sixth SIT Tone Number TON7 Seventh SIT Tone Number In the event of an unrecognized data tag the SocketModem presents the data item information as printable hex ASCII numbers following the MESG tag For example RING DATE 0321 TIME 1405 NMBR 5045551234 NAME DOE JOE MESG 060342424231 RING RING Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 122 Chapter 4 Voice Commands Voice Mode Shielded Codes These codes can be sent in either Command mode or Data mode The DCE may return the event detection reports after the OK result code from the FCLASS command One or more simple event detection reports may be embedded within the data portion of a complex event detection report Table 3 describes voice mode shielded codes The number in the first column is the ASCII equivalent in hex Voice Mode Shielded Codes Detail Shielded Code Hex Event Report Description DLE 10 SUB lt ETX gt 1A 3 Oo Cc x Aocmzz o D gt oi TN M 200T7500035t QgQOU odoo Ioo02oI iW ooO Ot TNR4zq RA4Q0 OO 0C OU w w wW O0 SOO Ne o Te CO IO 3 XD 09 4 0
96. WER code Disable data calling tone transmission Detect AT amp T call card bong tone The character should follow the phone number and precede the user s call card number ATDT1028806127853500 123456789 Avr Dial Stored Telephone Number n 0 2 0 1 for SMI Parallel internal none Dial a number previously stored in directory number y by the amp Zyzx command Example ATDS 2 Echo Command Mode Characters n 0Oor1 1 EO Do not echo keyboard input to the terminal E1 Do echo keyboard input to the terminal Echo Online Data Characters n 1 1 FO Enable online data character echo Not supported F1 Disable online data character echo included for backward compatibility with some software Hook Control n Oor1 0 HO Go on hook hang up H1 Go off hook make the phone line busy Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 9 Command In Values Default Description Command Mn Values Default Description Command Nn Values Default Description Command On Values Default Description Command P Values Default Description Command Qn Values Default Description Chapter 1 AT Commands S Registers and Result Codes Information Request n 0 5 9 11 None 10 Display default speed and controller firmware version I1 Calculate and display ROM checksum e g 12AB I2 Check ROM and verify the checksum displaying OK
97. ach DLE character with another DLE character before sending it to the DTE After the last byte in the frame the modem sends DLE ETX to the DTE marking the end of the frame The modem then generates the OK message if no errors were detected or the ERROR message if errors were detected FCS is incorrect and returns to command mode While in command mode the modem continues to receive data in the selected modulation scheme and sends the data after sending the CONNECT message to the DTE when the DTE reissues the FRH command with the same parameter If the DTE issues the FRH command with a different parameter the modem clears all buffers and proceeds as described previously If carrier is lost while in command mode and the DTE reissues the FRH command with the same parameter and there is no data in the buffer the modem sends the ERROR result code to the DTE and returns to the command mode If there is data in the buffer the modem sends the next frame of buffered data to the DTE followed by DLE ETX and either the ERROR result code if errors were detected or the OK result code if no errors were detected The modem then returns to command mode The modem concludes an error is detected if carrier is lost for any period of time during or before the reception of a frame If carrier is lost for a time period longer than the time specified by the register S10 the modem finishes delivering the data in the receive buffer if any
98. agrees The PC selects the Voice Transmit mode The modem agrees The PC delivers lt DLE gt shielded and silence compressed voice data across the PC modem interface The PC indicates the end of the Voice data stream The modem indicates it is in Voice Command mode The PC deselects all devices The modem agrees The PC switches to Data mode Command mode and autobauding enabled AT VIT 0 VPR 0 FCLASS 0 The modem agrees Answer Phone Play Greeting Message and Record Message Example Response The DCE switches to Voice mode The DTE selects a fixed DTE DCE interface rate The DTE knows from the sample rate selected earlier and the bits per sample that the DTE DCE interface rate should be 38400 bps The DTE DCE Inactivity Timer starts with 60 seconds DCE agrees to the old DTE DCE interface rate AT VSM 129 7200 0 0 DTE changes its DTE DCE rate to 38400 bps and selects a compression OK AT VSD 127 20 AT VLS 0 OK AT VIT 0 FCLASS 0 S0 0 OK RING AT FCLASS 8 OK AT VLS 0 method with the least sensitive setting with the goal of recording a message with less distortion and at 7200 samples per second Assume that the DTE issued a VSM command earlier The DCE agrees DTE selects a silence detection period of 2 seconds DTE selects a silence detection period of 2 seconds with the least sensitive setting for detecting the end of voice recording The DCE agrees The DTE selects the Data
99. ality OK on the T 30 flow chart The number of lines received with a bad pixel count is multiplied by this number If the result exceeds the number of lines in the page then the error rate is too high A value of 20 corresponds to a 5 error rate A value of 0 implies that error checking is not present or is disabled Class 2 FBADLIN Write syntax FBADLIN lt value gt Valid values 0 255 Default value 10 This is the other Class 2 parameter used to determine Copy Quality OK If the number of consecutive lines in normal resolution 98 dpi mode that have pixel count errors is equal to or greater than value then the copy quality is unacceptable If the number of consecutive lines in fine resolution 196 dpi mode that have pixel count errors is equal to or greater than value x 2 then the copy quality is unacceptable Copy Quality Not OK occurs if either the error percentage is too high or if too many consecutive lines contain errors Bad line counts are reported in the FPTS response A value of 0 implies that error checking is not present or disabled Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 84 Chapter 3 Fax Class 2 Commands Adaptive Answer Class 2 1 FAA Write syntax FAA lt value gt Valid values 0 1 Default value 0 FAA 0 The modem shall answer only as a Class 2 1 facsimile device No automatic switching of service class shall occur based on the calling devi
100. amp L Line feed character 84 esee secsiscseesciser ies Load Factory Settings command amp F Local Callback Inactivity Timer command CBI Local Callback Inactivity Timer command CBI Local Callback Inactivity TIMET ehe times 19 Local ID String BLE uasa stereo TI Local Polling ID String e TT Local Polling ID String FPI sU Loopback Test commands amp T sues 13 M Mandatory Parameter Commands Minimum Phase C Speed FMS miscellaneous parameters sese MNP data compression etr eterteon rore tte ete ottere MNP Error Correction eese Modem Capabilities Parameters FCC Modem on Hold ener 24 Modem on Hold Enable command PMH Modem on Hold Initiate command PMHR Modem on Hold Timer command PMHT 24 Modem Reset command Z sss Modes of Interaction seseeeeeenene Modulation Handshake command N is Modulation Selection command MS 22 Monitor Speaker Mode command M 10 N Negotiation Reporting FNR sese 80 Non standard Frame FIF String FNS 78 Numeric Parameters user irridens r yeh 51 O On hook off hook ccceccessceesceessecssecesscesseecsseenseseeeeeenees 9 Online BPS Speed command MB
101. and Result Codes Description Command Values Result Codes Description Chapter 4 Voice Commands VDT lt enable gt lt report gt Control Tone Cadence Reporting OK if the modem accepts the command ERROR if the parameter is out of range The VDT command causes the modem to enable or disable reporting of the control tone cadence information in the frequency band used by the Ring Back Remote Ring Busy and Reorder Fast Busy tones usually in the 300 600 Hz range This reporting is subject to the tone detection restrictions reported by the VLS command The report format is one line per silence period and one line per ring period The length of the silence period is in the form CPOF lt number in units of 0 1 seconds gt lt CR gt lt LF gt and the length of the ring period is in the form CPON lt number in units of 0 1 seconds The LR character is optional Note The VEM command can disable the reporting of this command regardless of the current setting of the VDT command lt enable gt lt report gt Description 0 N A The modem will not generate control tone cadence reports Control tone event codes are reported as normal 1 0 The modem only produces DROF and DRON messages The modem will not report any Ring Back Remote Ring Busy and Reorder Fast Busy tones event codes Other control tone event codes are reported as normal 1 non zero for future implementation 2 255 non zero Reserved for
102. ands VNH lt hook gt lt Enter gt 0 1 2 3 through 255 OK if command accepted ERROR if parameter out of range The VNH command causes the modem to enable or disable automatic hang ups to a varying degree when in Data mode or Fax mode as shown below Automatic Hang Up Control VNH 0 Enable automatic hang ups as is normal in other non Voice modes such as hanging up the phone when the modem does not detect a data carrier within a given time interval VNH 1 Disable automatic hang ups in other non Voice modes VNH 2 Disable automatic hang ups in other non Voice modes The modem performs only a logical hang up i e returns the OK result code VNH 3 255 Reserved for future standards FMI lt Enter gt N A N A Only unsolicited result codes not the standard AT type OK result code The FMI command causes the modem to report text consisting of a single line with the modem manufacturer s name e g Lucent Data Fax Voice and our address phone and fax numbers Report Manufacturer s ID FMM lt Enter gt Report Product ID Only unsolicited result codes not the standard AT type OK result code The FMM command causes the modem to report text consisting of a single line with the modem s name e g SocketModem FMR lt Enter gt OK or ERROR The FMR command causes the modem to report the firmware version number and or a date code e g Vs 2 07 2 4 95 Report Version Level FLO lt method gt lt Ente
103. ands section The modem precedes all of the following information responses with CR LF and follow them with CR LF if in verbose mode ATV1 or follow them with just a CR if in terse mode ATVO T 30 Phase A Negotiation Responses Facsimile Connection Response Class 2 1 Syntax Class 2 Syntax FCO FCO The FCO response indicates connection with a Group 3 facsimile station It is released by detection of HDLC flags in the first received frame FCO is generated in response to an Originate command 2 3 1 or an Answer command 2 3 2 FCON FCON The Class 2 response is essentially the same as the Class 2 1 response Transition to Data Modem FDM Class 2 1 Syntax Class 2 FDM FDM The FDM response indicates that the modem has identified that the calling device is a data modem The modem issues this response immediately upon recognition of a data modem The FDM response precedes any data modem information text or result codes There is no equivalent response in Class 2 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 64 Chapter 3 Fax Class 2 Commands T 30 Phase B Negotiation Responses The modem will provide the on line status of several session parameters when they are available in the T 30 handshaking and if enabled via the FNR subparameters These include the remote ID string and the DIS DCS DTC parameters Report DIS DCS DTC Frame Informat
104. ata mode from online command mode you must issue the command ATO To send AT commands to the modem you must use a communications program such as the HyperTerminal applet in Windows 98 and NT 4 0 or some other available terminal program You can issue commands to the modem either directly by typing them in the terminal window of the communications program or indirectly by configuring the operating system or communications program to send the commands automatically Fortunately communications programs make daily operation of modems effortless by hiding the commands from the user Most users therefore need to use AT commands only when reconfiguring the modem e g to turn auto answer on or off The format for entering an AT command is ATXn where X is the command and n is the specific value for the command sometimes called the command parameter The value is always a number If the value is zero you can omit it from the command thus AT amp W is equivalent to AT amp WO Most commands have a default value which is the value that is set at the factory The default values are shown in the AT Command Summary See below You must press ENTER it could be some other key depending on the terminal program to send the command to the modem Any time the modem receives a command it sends a response known as a result code The most common result codes are OK ERROR and the CONNECT messages that the modem sends to the computer when it is connectin
105. backward compatibility with some software Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 10 Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Description Srzn Sr Vn Xn Zn Chapter 1 AT Commands S Registers and Result Codes Set Register Value r S register number n varies None Set value of register Sr to value of n where nis entered in decimal format e g S0 1 Read Register Value r S register number None Read value of register Sr and display it in 3 digit decimal form e g 82 gives the response 043 Tone Dialing P T T Configures the modem for DTMF touch tone dialing Dialed digits are tone dialed until a P command or dial modifier is received Result Code Format n Oor1 1 VO Displays result codes as digits terse response V1 Displays result codes as words verbose response Result Code Options n 0 1 or2 2 WO CONNECT result code reports serial port speed disables protocol result codes CONNECT result code reports serial port speed enables protocol result codes CONNECT result code reports line speed enables protocol result codes W1 W2 Result Code Selection n 0
106. be loaded at power on or following the ATZ command amp W1 Store Dialing Command y 0 2 0 1SMI Parallel internal x Dialing command None Stores dialing command x in memory location y Dial the stored number using the command ATDS y See Also the CBS command a callback security command Select Maximum MNP Block Size n 0 1 2 o0r3 3 AO 64 character maximum A1 128 character maximum A2 192 character maximum A3 256 character maximum Transmit Break n 0 9 in 100 ms units 3 In non error correction mode only sends a break signal of the specified length to a remote modem Works in conjunction with the V command Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 14 Command Kn Values Default Description Command Nn Values Default Description Command Qn Values Default Description Command Tn Values Default Description Chapter 1 AT Commands S Registers and Result Codes Break Control n 0 5 5 Controls the modem s response to a break received from computer remote modem or B command Response is different for each of three different states Data mode Modem receives the break from the computer KO Enter online command mode no break sent to the remote modem K1 Clear data buffers and send break to the remote modem K2 Same as WO K3 Send break immediately to the remote modem K4 Same as WO K5 Send break to the remote
107. before responding with the OK result code time Decimal number from 0 default to 255 that specifies the length of time in 10 ms intervals to delay before responding with the OK result code after terminating the session OK Reported when transmission has been terminated for the specified amount of time ERROR value is invalid or this command is issued while the modem is on hook Reporting Supported Range of Parameter Values Command FTS Response FTS time range Example FTS 0 255 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 37 Command Description Defined Values Result Codes FRS Chapter 2 Fax Class 1 and 1 0 Commands Receive Silence This command causes the modem to listen and report an OK result code when silence has been detected on the line for the specified period of time This command will terminate when the required period of silence is detected or when the DTE sends the modem another character other than XON or XOFF which is discarded In either event the OK result code is returned This command is aborted if any character is received from the DTE after receipt of the command but before the time delay elapses In this case the modem discards the aborting character and issues an OK result code lt time gt Decimal number from 0 default to 255 which specifies the length of time in 10 ms intervals to delay before responding with the OK result code a
108. ce type FAA 1 The modem can answer and automatically determine whether to answer as a facsimile modem or as a data modem If the modem automatically switches it resets the FCLASS parameter to 0 FCLASS does not affect switching to Class 2 1 from other classes or switching to classes other than Class 0 Note If the modem reconfigures itself to data modem operation in adaptive answering the host must reissue a new FCLASS 2 1 command to enable subsequent Service Class 2 1 facsimile operation Class 2 FAA Write syntax FAA lt value gt Valid values 0 1 Default value 0 FAA 0 Constrains the modem to answer as set by FCLASS FAA 1 The modem can answer and automatically determine whether to answer as a facsimile modem or as a data modem If the modem automatically switches it modifies FCLASS as appropriate Host Phase C Response Timeout FCT Write syntax FCT lt value gt Valid values 0 255 in 100 millisecond units Default value 30 This determines how long the modem waits for a command after reaching the end of data when transmitting in Phase C When this time out is reached a cancellation signal and then a FHS 43 is issued to the host and the remote side is sent a disconnect frame FPHCTO Host Phase C Response Time out Class 2 1 2 0 Not Applicable Class 2 Syntax FPHCTO lt value gt Value Values 0 255 Default Value 30 FPHCTO 0 255 FPHCTO 30 Default value Range 0 255 This command specifies t
109. cter flow control characters lt DC1 gt or DC3 or other characters defined for that command Originate a Call Class 2 1 Syntax Class 2 Answer a Call Class 2 1 Syntax Class 2 ATD ATD lt dial string gt lt CR gt or ATD lt dial string gt lt valid commands CR All Multi Tech MultiModems support the D command to originate a call This Originate command is documented in the MultiModem User Guide ATD Same as Class 2 1 ATA ATA lt CR gt The Answer command is documented in the MultiModem User Guide If the Answer command is unsuccessful the MultiModem reports an appropriate failure or error type result code such as NO CARRIER If configured to do so by the FAA parameter the modem may adaptively answer as a fax modem or as a data modem If the modem answers as a data modem it resets the FCLASS parameter to 0 and issues appropriate final result codes e g CONNECT NO CARRIER to the host ATA Same as Class 2 1 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 61 Chapter 3 Fax Class 2 Commands Data Transmission Class 2 1 FDT Syntax FDT lt CR gt The FDT command requests the modem to transmit a Phase C page It is issued at the beginning of each page either in Phase B or in Phase D When the modem is ready to accept Phase C data it issues the negotiation responses and the CONNECT result code to the host Negotiation responses are controlled by
110. cter was not an ASCII NULL the modem generates the OK result code and returns to the command mode If the last character transmitted was an ASCII NULL the modem generates the CONNECT message to the DTE and waits for further data from the DTE while transmitting NULLs to the remote If more data is received before five seconds elapse the modem continues to transmit the data as described in the previous paragraph If five seconds elapse and no data is received from the DTE the modem drops carrier goes on hook and generates the ERROR result code Fax Data Reception Fax data reception is initiated using the AT FRM lt mod gt command After this command is issued the modem looks for carrier in the modulation scheme specified by the parameter n If no carrier is detected before the period of time specified by register S7 expires the modem generates the NO CARRIER message and returns to command mode If a V 21 carrier is detected when a high speed carrier is expected the modem generates the FCERROR message and returns to the command mode If the specified carrier is detected the modem generates the CONNECT message and enters the data receive mode While in data receive mode the modem receives data from the remote adds start and stop bits and handles lt DLE gt lt chr gt character pairs before passing the data to the DTE The modem prefixes each DLE character with another DLE character before sending it to the DTE If the modem detec
111. ction during receives Dial Tone detection and double tone detection An example of event detection in a Service Level C modem is shown below AT VEM cn 0A000100 0E601800 1A803840 OK Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 103 Chapter 4 Voice Commands Voice S Register Summary Voice mode S Register changes are outlined below S Register Description S0 S7 10 Automatic answer is disallowed in Voice mode Wait for Carrier After Dial Default is 60 seconds In Voice mode S7 contains the maximum amount of time that the modem will wait during Call Origination all the time detecting for ring backs before assuming that the remote station will not go off hook Automatic disconnect is disallowed in Voice mode Voice Commands The V Voice enhancements are implemented with AT V for Voice commands as well as changes to several existing commands In general the modem does not accept Data mode FCLASS 0 commands or Fax mode FCLASS 1 2 2 0 commands when in Voice mode FCLASS 8 Commands That Change for Voice Mode Support Command Description N xXOOzr 7 rI Up amp D FCLASS 8 FCLASS FCLASS Disallowed in Voice mode Causes the modem to Dial assuming VLS 2 if VLS 0 when the ATD command was entered Values greater than 0 disallowed in Voice mode Disallowed in Voice mode Disallowed in Voice mode Disallowed in Voice mode
112. cuted on 2 D mismatch detection Data Compression Format Conversion FDFFC Class 2 0 2 1 Not Applicable Class 2 Write syntax FDFFC lt value gt Valid values 0 Default value 0 This parameter determines the modem response to a mismatch between the data format negotiated for the facsimile session reported by the FCS DF subparameter and the Phase C data desired by the host indicated by the optional FDT DF subparameter or the FIS DF subparameter for FDR operation FDFFC 0 Disables mismatch checking The host must check the FCS DF subparameter and transfer matching data Page Length Format Conversion FLNFC Class 2 0 2 1 Not Applicable Class 2 Write syntax FLNFC lt value gt Valid values 0 1 2 Default value 0 This parameter determines the modem response to a mismatch between the page length negotiated for the facsimile session reported by the FCS LN subparameter and the Phase C data desired by the host indicated by the optional FDT LN subparameter or the FIS LN subparameter for FDR operation A mismatch would require clipping or scaling a longer format to a shorter one FLNFC 0 Disables mismatch checking The host must check the FCS LN subparameter and transfer matching data FLNFC 1 Enables mismatch checking An implied FKS command is executed on mismatch detection FLNFC 2 Enables mismatch checking with page length conversion of 1 D data in the modem An implied FKS command is executed on 2 D misma
113. d FBADLIN parameters used in Class 2 The modem may use it to make the Copy Quality OK decision in the T 30 flow chart Figure A 7 T 30 If it is used the modem shall judge copy quality unacceptable if either the percentage of good lines is too low or too many consecutive lines contain errors Bad line counts are reported in the FPS blc response A value of 0 disables either subparameter for use in copy quality checking The first subparameter pgl specifies the percentage of good lines e g with negotiated number of pixels required for a page to be considered acceptable For example if the modem counted bad lines as reported in the FPS blc subparameter and total line count as reported in the FPS lt c gt subparameter the percentage of good lines would be computed by the following equation 100 x lt c gt blc lc If the resulting value is less than the value in pgbP the page is unacceptable The second subparameter cbl specifies the maximum tolerable number of consecutive bad lines If this value is exceeded for a given page the modem shall consider the page unacceptable If the page is found unacceptable by either criteria the modem shall report the value 2 for the FPS lt ppr gt subparameter and store that value into the FPS parameter Class 2 FBADMUL Write syntax FBADMUL value Values 0 255 Default 20 This is one of two Class 2 parameters used to determine Copy Qu
114. e detected from the remote Fax Answering Answering of fax calls is identical to answering of data calls with the exception that the modem enters the fax handshaking mode instead of the data handshaking mode after going off hook If FAE 0 the modem after sending answer tone automatically enters fax mode FTH 3 sends the CONNECT message to the DTE and starts sending FSK flags If FAE 1 the modem determines whether the caller is a data modem or fax modem and sends the DATA or FAX result code respectively to the DTE Fax Control Transmission Fax control transmission is initiated by the FTH lt mod gt command After this command is issued the modem generates the CONNECT message and transmits carrier in the modulation scheme specified by the parameter n The modem then transmits HDLC flags for a minimum of 1 second The modem continues to transmit the HDLC flags until it receives a character from the DTE When characters are received from the DTE the modem adds start and end flags performs zero bit insertion generates FCS and deletes lt DLE gt lt chr gt character pairs before transmitting the characters to the remote fax machine Each lt DLE gt lt DLE gt sequence is transmitted as a single DLE lt DLE gt lt ETX gt is considered as the end of frame marker and is not transmitted All data received from the DTE after DLE2 ETX is ignored by the modem until the modem generates either the CONNECT OK or ERROR result code
115. e DTE the modem then turns off carrier and returns to the command mode Reporting Current or Selected Values Command FTH Response FTH mod Example FTH 98 For V 17 9600 bps Reporting Supported Range of Parameter Values Command FRH Description Defined Values Command FTH Response FTH Example FTH 98 For V 17 9600 bps Receive Data with HDLC Framing This command causes the modem to receive frames using HDLC protocol and the modulation defined below An ERROR response code results if this command is issued while the modem is on hook mod Decimal number corresponding to the selected modulation mode and data rates shown in Table 3 2 Reporting Current or Selected Values Command FRH Response FRH lt mod gt Example FRH 98 For V 17 9600 bps Reporting Supported Range of Parameter Values Result Codes Command FRH Response FRH Example FRH 98 For V 17 9600 bps CONNECT Reported for either of two conditions 1 When the selected carrier is detected with an HDLC flag 2 If the DTE sends another FTH lt MOD gt command after sending the result code indicating frame reception is complete FCERROR Reported if a different carrier is detected and FAR 0 NO CARRIER Reported if loss of carrier is detected OK Reported for either of two conditions 1 If a frame was received correctly 2 If the DTE sends any character other than XON or XOFF while the modem
116. e IS 101 Spec for additional information DPPN VTS Report Frequency Support OK follows the string The VTS command reports the current frequency range in the form lt freq1 gt lt freq2 gt lt dur gt where lt freq1 gt is the first frequency range lt freq2 gt is the second frequency range and lt dur gt is the duration range for the square brackets and curly braces constructs The units are in 0 01 seconds The range of valid lt dur gt values is that of the VTD command Example In the lines below the modem responds to the VTS command by reporting that it supports two frequencies both in the range of 200 3300 Hz and supports a duration range from 0 to 5 seconds AT VTS 200 3300 200 3300 0 500 OK Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 109 Command Result Codes Description Command Values Result Codes Description Command Result Codes Description Command Result Codes Description Chapter 4 Voice Commands VTX Start Voice Transmission Process OK on completion of transmission CONNECT if the modem accepts the command ERROR if the modem is not connected to at least one off hook Telco line or one non Telco device The VTX command causes the modem to start the voice transmission process The PC sends the data in the format of the previously entered VSM command using the flow control method selected by the FLO com
117. e modem you must configure it to match the defaults of the country in which you are using it You can useone of two configuration methods Using the Global Wizard and Using AT Commands Using the Global Wizard Utility The Global Wizard configuration utility is recommended for computers running Windows 1 Insert the MT5634SMI system CD into the CD ROM drive The Autorun dialog box appears 2 Click Initial Setup and Country Selection The Global Wizard dialog box appears Click Next 3 View the Global Wizard as it searches for your modem and identifies it Click Next 4 Select the country in which the modem will be used and then click Next 5 Review your choice of country If it is correct click Next to configure the modem 6 When Global Wizard announces that the parameters have been set click Finish to exit Using AT Commands If you are comfortable using AT commands you can configure your modem using AT commands You must enter these commands in your communication program s terminal window To configure the modem for a specific country execute the following AT commands Type AT T19 0 nn nn stands for country code Press Enter OK is displayed Then save the changes by issuing the following command AT amp F amp W To verify that the correct country has been configured issue the following command ATI9 The country code is then displayed in decimal format The following is an example of country AT commands and result codes
118. eak Ratio 13 amp Q Asynchronous Communications Mode 13 amp S Data Set Ready DSR DE amp T Louupback Test ree eere amp V Disply Current Settings 14 amp W Store Current Configuration usse 14 D I M 14 AT Escape Sequence adil VDR Distinctive Ring Report 18 CET ast vceas T A E E 8 A Select Maximum MNP Block Size 14 Ad Repeat Last Command ss 0 cecsesesccsccaescesssnce ocastoes ees 8 AT Auentiom Coda sema cerro tei 8 B Communication Standard Setting 8 VB Transmit Break sess C Data Calling Tone ai PSU AT me a inira n ten erii t HARI disabling response to m DS Dial Stored Number sss 9 E Echo Command Mode esee 9 F Echo Online Datat I Information Request VK Break Coltpol i iuse d iovis Eus M Monitor Speaker Mode sees W Error Correction Mode ts N Modulation Handshake esses O 129 O Return Online to Daft cecinit 10 P Pulse Dialing 10 YQ Flow Control sss wi 15 Q Result Codes Enable Disable 10 Sr Set Register Value Il T Inactivity Timer old T Tone Dislirg 2 eiecit imm 11
119. ech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 51 Chapter 3 Fax Class 2 Commands The following table illustrates how each of the parameter types is set or read with typical responses Parameter type Set Read Read valid values Numeric AT FLP 1 AT FLP AT FLP ok 1 0 1 ok ok String AT FLI 123 AT FLI AT FLI ok 123 20 32 127 ok ok Compound AT FIS 2 0 AT FIS AT FIS ok 0 1 1 0 0 0 0 4 0 1 0 3 0 4 0 2 0 0 0 7 ok ok Command Execution Mode In command execution mode responses indicate the progress of an action command Response format is the same as the format of a parameter that is read except that following the parameter name is replaced by All action commands can be aborted by sending a single byte of serial data to the modem while it is in command execution mode This not only aborts the command but initiates the fax disconnect sequence Data Transfer Mode Data transfer mode is entered after the CONNECT response is given or a 7 response is given in terse mode This is initiated by either a FDT or FDR action command When the connect response is initiated by a FDT command any data sent to the modem after the connect response is sent across the phone line to the receiving fax modem This data is a compressed bit map for the page being transmitted It must be formatted according to the ITU T standard T 4 or according to the
120. een enne nennen nennt 33 ra Pies Mc MT 33 DTE o Modem Transmit Data Stream euis aer rr ter ire rr ER te Er E e a3 Modem o DTE R geive Data Sean sissecescccrecseteraenatadcenisaniameasesccwassantaseetaanienssennsaseateoeuniand mesmenaze 33 Fan Mode RO r0 jamie eee im E 34 3 10 57 JM 34 FAR ANS 500 m 34 FIN COMMI PRAISING as pd ac Um AE saan ED RUE RE a DER I LM E RM MIR DA EM MD MEE M MEE 34 o CONO Fece 1 XXX 35 FAN Daa ONES TT iani 36 uy Daa PRECO mm 36 Command and Parame Tola soisi ins n pU RP PEDES EP FADE EP FU R ERES FOIE SELON eae LU TER PEDIS EPFL TOP PEDE CERE LOO 37 nuvscEu q miriD ii cH 37 Mae CONNAN sini assess cbe ELE FH AES EL PAREEER EAM SERKRFGDR EPA EAEEEEEEDAEERE OHNE PIX DEEKR AER EEEVEOHREEER CAREERS REM UA 37 arvis Ligss TST IIIS dass FbGe e Fe Eve FL BR Eo ERU xU F bot ceo Mtdter eo Fou tee Mi dea nes Ub ue RE cin bu te rM DUE FEE 41 im dcl iaa D QD 45 Chapter 3 Fax Class 2 and 2 0 2 1 Commands eee eeeeieeeeeene nennen nena annnm nnn nnn nna 48 Mro TUI STREET TET TT E T E E TE S S TESTER 48 AT Command IER RCUBTTERHLG Rosie Rode Oe ea uotis Gabe R 49 RSS IS CRGO MIRARI EC socion m D 0I TOSS OS 50 AT ESI E PROS Smet 50 command ECCU OT MIDI oops A A 52 Do TYE a A A E E A E A A E T 52 Commands and Responses Cup Was acess cectninsiadtiasnecsatau
121. egotiation Responses section Class 2 FDCS Read syntax FDCS Response FDCS VA BR WD LN DF EC BF ST or F DCS Values See Table 3 5 Default 0 0 0 0 0 0 0 0 The Class 2 parameter is essentially the same as the Class 2 1 parameter except that the response lacks the JP subparameter Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 73 Chapter 3 Fax Class 2 Commands T 30 Session Subparameters Several commands and responses reference T 30 session negotiated parameters These are described by a set of common subparameters which are described in Table 3 5 Optional parameter values are marked with an asterisk Unspecified parameter values are reserved for future use The FCC FDCC FIS FDIS and FCS FDCS compound parameters described in Parameter Commands sections use these session subparameters On writes unspecified subparameters are unchanged The FIS FDIS FCS FDCS and FTC FDTC session report responses described in T 30 Phase B Negotiation Responses section also use these subparameters For test response ranges of values are reported for each subparameter enclosed in parentheses characters For example a modem response to FCC FDCC could report lt CRLF gt 0 1 0 3 0 4 0 2 0 0 0 0 7 0 lt CRLF gt Example FIS 0 3 0 2 0 0 0 1 0 is interpreted as follows Value Label Description 0 VR
122. elected Bh 28 800 bit s preferred 28 800 bit s selected Ch 31 200 bit s preferred 31 200 bit s selected Dh 33 600 bit s preferred 33 600 bit s selected Class 2 1 only all with V 8 implied Eh Reserved Reserved WD Page width in R8 R16 200 300 400 pixels d mm d mm dpi dpi dpi Oh 0 1728 3456 1728 2592 3456 th 1 2048 4096 2048 2h 2 2432 4864 2432 LN Page length Oh 0 A4 297 mm th 1 B4 364 mm 2h 2 Unlimited length DF Data Oh 0 1 D modified Huffman T 4 compression th 1 2 D modified read T 4 format 3h 2 D modified read T 6 EC Error Oh 0 Disable ECM correction 1 64 byte frames Annex A T 30 T30 1h 2 256 byte frames Annex A T 30 BF Binary file 00h 0 Disable file transfer modes transfer ST Scantime line VR 0 VR gt 0 Oh 0 0 ms 0 ms 1h 1 5 ms 5ms 2h 2 10 ms 5ms 3h 3 10 ms 10 ms 4h 4 20 ms 10 ms 5h 5 20 ms 20 ms 6h 6 40 ms 20 ms 7h 7 40 ms 40 ms Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C Chapter 3 Fax Class 2 Commands Label Function Class 2 0 2 1 Class2 Description JP JPEG for 00 Disable JPEG coding color and 01 Enable JPEG coding T 81 B amp W 02 Full color mode 04 Enable preferred Huffman tables Note 3 Note 2 08 12 bits pel component 10 No subsampling 1 1 1 20 Custom illuminant 40 Custom gamut range Notes 1 For subparameter VR values 00 01 02 04 08 10 20 and 40 hexadecimal indicate a single choice they are the on
123. empts Display command CBF 26 Callback Failed Attempts Reset command CBFR 19 26 Callback Parity command ZCBP 19 26 callback security callback attempls eene tette tte tenente callback delay tit e ee eere emen callback failed attempts reset m callback security feset 1 e ccseceeeeea steer feet eb ead enabling and disabhing eese cet failed password attempts WCRI DEBER esae abere om pem Def POT aM D E passwords setup password Callback Security Reset command ZCBR Ul 3l esc RC E Caller ID Selection command VCID Capability to Receive FCR Carriage return character S3 28 Carrier loss disconnect time S10 setting Cisco Configuration command R 17 QUII CMS 93 Class 2 command FLNFC Page Lenght esses 89 SEVEPRC Pase Width ueuseecceiee 90 Class 2 commands FEA Phase C Received EOL Alignment 87 FREL Phase C Received EOL Alignment 87 Class 2 commands FAA Adaptive Answer esssssseeeeeeeenenee 85 FAXERR T 30 Session Error Report 86 FBADLINL Bad Line Threshold Parameter 84 FBADMUL FBO Data Bit Order eese FBOR Data Bit Ordet c0ccccssescsssscsesscenesseeses FBUG Session Message Reporting T FCIG
124. enabled for 1 D data Inc 3 Page length conversion enabled for 2 D data wdc 0 Page width format codes ignored wdc 1 Page width checking enabled wdc 2 Page width conversion enabled Class 2 Not Applicable Note that the four arguments of the Class 2 0 2 1 command FFC cover the same technical content as these four separate Class 2 commands which are described in detail below FVRFC for vertical resolution FDFFC for data compression format version FLNFC for page length format conversion and FWDFC for page width format conversion Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 88 Chapter 3 Fax Class 2 Commands Vertical Resolution Format Conversion FVRFC Class 2 0 2 1 Not Applicable Class 2 Write syntax FVRFC lt value gt Valid values 0 1 2 Default value 0 This parameter determines the modem response to a mismatch between the vertical resolution negotiated for the facsimile session reported by the FCS VR subparameter and the Phase C data desired by the host indicated by the optional FDT VR subparameter or the FIS VR subparameter for FDR operation FVRFC 0 Disables mismatch checking The host must check the FCS VR subparameter and transfer matching data FVRFC 1 Enables mismatch checking An implied FKS command is executed on mismatch detection FVRFC 2 Enables mismatch checking with resolution conversion of 1 D data in the modem An implied FKS command is exe
125. eption Set local ID AT FCR 1 AT FLI lt local AT FNS lt hex NSF FIF string gt OK ID gt Remote Station Action host may load the local ID host may set up NSF string ATA FCO FNS lt nss string gt FPW lt pwd string gt FSA lt sub string gt FTI lt tsi ID gt FCS lt des codes gt OK AT FDR FCS lt des codes gt CONNECT lt page data gt lt RTC pattern gt lt DLE gt lt ETX gt FPS 1 lt Ic gt 0 0 0 FET 0 lt OK AT FDR CONNECT lt page data gt lt RTC pattern gt lt DLE gt lt ETX gt me lt DC2 gt FPS 1 lt Ic gt 0 0 0 FET 2 OK AT FDR FHS 00 lt OK off hook send CED send NSF send CSI send DIS detect flags get NSS get PWD get SUB get TSI get DCS begin TCF recv accept TCF send CFR get page carrier get page data detect RTC lt get MPS lt send MCF get carrier get page data detect RTC lt get EOP lt send MCF get DCN lt hang up get CED get NSF get CSL get DIS send Preamble send NSS send PWD send SUB send TSI send DCS start TCF finish TCF get CFR send carrier send page data send RTC send MPS get MCF send carrier send page data send RTC send EOP get MCF send DCN hang up if FNS loaded if FLI loaded Another FCS would be reported if the parameters changed after retraining Multi Tech Systems Inc SocketModem MT5634SMI
126. ers the phone The DCE indicates that it is in Voice Command mode The DTE selects Voice Transmit mode The DCE agrees The DTE plays the welcome message The DTE indicates the end of the data stream The DCE indicates that it is in Voice Command mode The DTE annotates the greeting message with a 1 2 sec beep The DCE is ready for another Voice command AT VSM 132 7200 0 0 The DTE selects a low bit compression scheme to save disk space OK AT VRX CONNECT lt Data gt lt DLE gt lt NUL gt lt DLE gt lt gt The DCE agrees The DTE selects the Voice Receive mode The DCE agrees The DCE delivers lt DLE gt shielded and silence compressed voice data across the DTE DCE interface The DTE strokes the Inactivity Timer The DCE reports the start of a possible DTMF tone lt DLE gt lt 5 gt lt DLE gt lt 5 gt The DCE reports a DTMF 5 detection for 140 milliseconds within a 70 lt DLE gt lt gt lt DLE gt lt gt lt DLE gt lt ETX gt AT VNH 1 OK ATA millisecond resolution The DCE reports the end of the DTMF 5 detection For this example DTMF 5 means finish with the voice message and switch to fax mode The DTE wishes to end the record by sending an abort command The DCE indicates the end of the Voice data stream and returns to Voice Command mode The DTE selects to disable automatic hang ups while in Service Class 2 VIT 0 FSK command result codes in Telco on hook The DTE
127. esponse Message Codes Value Mnemonic Description 0 PPR Partial page errors 1 MCF Page good 2 RTN Page bad retrain requested 3 RTP Page good retrain requested Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 68 Chapter 3 Fax Class 2 Commands T 30 Phase D Post Page Responses Post Page Message Class 2 1 FET Syntax FET lt ppm gt The FET lt post page message gt response is generated by a receiving facsimile modem at the end of Phase C reception on receipt of the post page message from the transmitting station The FET lt ppm gt response is generated in execution of a FDR command The lt ppm gt codes correspond to the T 30 post page messages as described in Table 3 1 Table 3 2 Class 2 1 Post Page Message Codes PPM code T 30 mnemonic Description 0 MPS Another page next same document 1 EOM Another document next 2 EOP No more pages or documents Class 2 FET Syntax FET lt ppm The Class 2 response is similar to the Class 2 1 response except for the different ppm codes described in Table 3 1 Table 3 3 Class 2 Post Page Message Codes PPM code T 30 mnemonic Description 0 MPS Another page next same document 1 EOM Another document next 2 EOP No more pages or documents 3 PPS NULL Another partial page next 4 PRI MPS Another page procedure interrupt 5 PRI EOM Another documen
128. etModem MT5634SMIxx Reference Guide S000263C 80 Chapter 3 Fax Class 2 Commands Addressing amp Polling Frames Class 2 1 FSA FPA FPW Write syntax FSA lt destination Subaddress string gt FPA lt selective Polling Address string gt FPW lt Password string gt Values 20 digit numeric ASCII string digits 0 9 and space only Default Null String The modem sends the numeric string contained in FSA FPA or FPW at the times specified in Recommendation T 30 if the corresponding parameter is not a Null String The FPW parameter is used for the PWD frame sent with either DTC or with DCS The FSA FPA and FPW test commands report the corresponding ranges of character values supported The modem transmits digit string characters to the remote station in reversed time order from the order in the command line If less than 20 characters are specified in a non Null String the modem appends space characters If the specified string is more than 20 characters in length an ERROR result code is generated Class 2 There are no equivalent parameters in Class 2 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 81 Chapter 3 Fax Class 2 Commands T 30 Procedure Control Parameters The fax modem makes decisions at several nodes in the T 30 procedure These parameters allow a host to sense or determine fax modem policy for these procedure decisions Page Transfer Status Clas
129. fax ID R3 AT FLI 555 1212 Set local fax ID m CO A T5 ATDT5551212 Dial the receiving fax modem R5 m eo recedere Cs T7 fci 555 1212 Remote fax s identification string T8 fis 0 5 0 2 0 0 0 0 Remote fax s capabilities Pfft T foe 00 0 0 0 po y y T10 AT FDT Begin negotiation and page transmission R7 FCO Fax connection received fti 666 6676 Remote fax s identification string fcs 0 5 0 2 0 0 0 0 Negotiated fax parameters speed may change pt to foe R11 AT FDR Begin page reception T11 fcs 0 5 0 2 0 0 0 0 Negotiated fax parameters R13 fcs 0 5 0 2 0 0 0 0 Final negotiated fax parameters T12 connect Ready for page data R14 connect Ready to receive page data T13 R15 lt DC2 gt Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 49 Chapter 3 Fax Class 2 Commands Transmitting Modem Receiving Modem Line Command response Comments Line Command response Comments T14 page data Send T 4 formatted page data R16 lt page data Receive T 4 for matted page data T15 lt DLE gt lt EOP gt R17 fps 1000 0 0 0 1000 lines received T16 This is the last page R18 fet 2 This is the last page pt JR8 fo ek R20 AT FDR Send page received OK message T18 fhs 0 Send one page done R21 fhs 0 Receive one page done T19 R22 We can now use the example to help explain the terminology for the fax command extensions Modes of
130. for string parameters consists of a list of valid character values and character value ranges in hexadecimal format separated by commas and enclosed in parentheses For example 20 2b 30 39 means the string can consist of the space character 20h the plus character 2Bh and the characters 0 9 30h 39h Compound parameters consist of a list of numeric and string parameters separated by commas For example the compound parameter DIS consists of eight numeric parameters set by the following command AT FISzn n n n n n n n It is possible to omit values from a compound parameter either by omitting values in the parameter string or by truncating the parameter string For example the command AT FIS 2 0 sets only the third and fourth values of the DIS parameter and leaves the rest unchanged Note that when you omit leading parameters you must leave their separation commas as placeholders but trailing parameters and their commas can simply be omitted It is possible to receive a compound parameter response from the modem that will have missing values For example the FPS response sometimes has only two values FPS 1 1134 and other times has five values FPS 1 1134 30 4 0 depending on the setting of the FCQ parameter A valid values string for a compound parameter consists of a valid values string for each parameter enclosed in parentheses and separated by commas Example FIS 0 1 0 3 0 4 0 2 0 0 0 0 7 Multi T
131. frame information FIS FDIS Report remote capabilities DIS frame information FTC FDTC Report remote capabilities DTC frame information FPO FPOLL Remote polling request indication FTI FTSI Report remote ID TSI FCI FCSI Report remote ID CSI FPI FCIG Report remote ID CIG FNF FNSF Report received NSF frame FNS FNSS Report received NSS frame FNC FNSC Report received NSC frame FSA Destination subaddress FPA Selective polling address FPW Password sending or polling FFD File diagnostic message FET FET Post page message report FPS FPTS T 30 Phase C page transfer status report post page responses FHS FHNG Call termination status FHR FHR Report received HDLC frame FHT FHT Report transmitted HDLC frame FPS FPTS T 30 Phase C page reception FV Prefix output on query response Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 56 Chapter 3 Fax Class 2 Commands Parameters for Mandatory Services Class 2 1 Class2 Mandatory parameter description FCLASS FCLASS Service class selection FBO FBOR Phase C data bit order optional parameter in Class 2 FCC FDCC Set modem capabilities FCQ FCQ Copy quality checking optional parameter in Class 2 FIS FDIS Set current session capabilities FCS FDCS Current session results read onl
132. fter detecting silence on the line OK Reported when silence has been present on the line for the specified amount of time or when the DTE sends the modem a character other than XON or XOFF ERROR value is invalid or this command is issued while the modem is on hook Reporting Supported Range of Parameter Values Command Description Defined Values FTM Command FRS Response FRS lt time gt range Example FRS 0 255 Transmit Facsimile This command causes the modem to transmit data using the modulation defined below When a valid mod value is entered the modem transmits the proper training sequence in the selected mode followed by constant 1 bits until data is received from the DTE The modem also returns the CONNECT result code at the beginning of the training sequence lt mod gt Decimal number corresponding to the selected modulation mode and data rates shown in Table 3 2 Table 3 2 Fax Class 1 and Fax Class 1 0 Modulation Modes and Rates lt mod gt Modulation Training Modulation Mode and Rate 3 V 21 300 bps 24 V 27 ter 2400 bps 48 V 27 ter 4800 bps 72 V 29 7200 bps 73 V 17 Long 7200 bps long 74 V 17 Short 7200 bps short 96 V 29 9600 bps 97 V 17 Long 9600 bps long 98 V 17 Short 9600 bps short 121 V 17 Long 12000 bps long 122 V 17 Short 12000 bps short 145 V 17 Long 14400 bps long 146 V 17 Short 14400 bps short Multi Tech Systems
133. g FBU 1 Enables the modem to report the contents of Phase B and Phase D HDLC frames to the host as they are sent and received in addition to other responses Reports use the FHT and FHR responses described in the Session Message Report Responses section of this chapter Class 2 FBUG Write syntax FBUG lt value gt Values 0 1 Default 0 The Class 2 parameter is identical to the Class 2 1 parameter except for the name Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 79 Chapter 3 Fax Class 2 Commands Negotiation Reporting Class 2 1 FNR Write syntax FNR lt rpr gt lt tor lt idr lt nsr gt Values 0 1 for each subparameter Default 0 0 0 0 FNR is a compound parameter used to control the reporting of messages generated during T 30 Phase B negotiations There are four switches for four types of reports Setting Reference Description rpr 0 2 4 2 1 Receiver parameters are not reported FIS and FTC reports are suppressed rpr 1 Receiver parameters are reported FIS and FTC reports are generated tpr 0 2 4 2 1 Transmitter parameters are not reported FCS reports are suppressed Note tpr 1 FCS parameter is still loaded Transmitter parameters are reported FCS reports are generated idr 0 2 4 2 3 ID strings are not reported FTI FCl and FPI reports are suppressed idr 1 ID strings are reported FTI FCl and FPI reports are
134. g to another modem See a table of valid result codes at the end of this chapter You can issue several commands in one line in what is called a command string The command string begins with AT and ends when you press ENTER Spaces to separate the commands are optional the command interpreter ignores them The most familiar command string is the initialization string which is used to configure the modem when it is turned on or reset or when your communications software calls another modem Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 5 Chapter 1 AT Commands S Registers and Result Codes AT Command Summary Organization of AT Commands on the following pages 1st by the initial command character amp 9c 2nd alphabetized by the second command character Except for listing of AT Command Description AT Attention Code A Answer A Repeat Last Command Bn Communication Standard Setting Ds Dial DSzy Dial Stored Telephone Number En Echo Command Mode Characters Fn Echo Online Data Characters Hn Hook Control In Information Request Mn Monitor Speaker Mode Nn Modulation Handshake On Return Online to Data Mode P Pulse Dialing Qn Result Codes Enable Disable Sr n Set Register Value Sr Read Register Value T Tone Dialing
135. ge of Parameter Values Command FRM Response FRM lt mod gt range Example FRM 3 24 48 72 73 74 96 97 98 121 122 145 146 Result Codes CONNECT Reported when the selected carrier is detected FCERROR Reported if another carrier is detected and FAR 0 the modem then returns to the command state NO CARRIER Reported if loss of carrier is detected OK Reported if the DTE sends any character to the modem other than XON or XOFF while operating in configured flow control from the DTE the modem then returns to the command state Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 39 Command FTH Description Defined Values Result Codes Chapter 2 Fax Class 1 and 1 0 Commands Transmit Data with HDLC Framing This command causes the modem to transmit data using HDLC protocol and the modulation defined below mod Decimal number corresponding to the selected modulation mode and data rates shown in Table 3 2 CONNECT Reported for either of two conditions 1 At the beginning of transmission of the training pattern for the selected modulation 2 If the Final Frame bit is O OK Reported for either of two conditions 1 If the Final Frame Bit is 1 2 If the DTE sends only lt DLE gt lt ETX gt a null frame while transmitting flags ERROR Reported if five seconds elapse from the time when the modem reported the CONNECT result code without any additional data transmitted from th
136. generated nsr 0 2 4 2 4 Non standard frames not reported FNF FNS and FNC reports suppressed nsr 1 Non standard frames reported FNF FNS and FNC reports generated Note If tor 0 the negotiated image data format will not be reported Without that report the host must send image data that is mandated by Recommendation T 30 normal resolution A4 length 1728 width 1 D coding or it must enable the corresponding format conversion FFC Otherwise the data format negotiated and the data format sent might not match causing the facsimile session to fail Class 2 There is no equivalent parameter in Class 2 Address amp Polling Capabilities Class 2 1 FAP Write syntax FAP lt sub gt lt sep gt lt pwa gt Values 0 disabled or 1 enabled for each subparameter Default 0 0 0 The FAP subparameters allow the host to indicate the inbound subaddressing selective polling and passwords capabilities to the remote station via the corresponding bits in the DIS or DTC frames bit 47 for SEP bit 49 for SUB bit 50 for PWD These subparameters also control the reporting of those frames if received For example if the sep subparameter value is set to 0 disabled then the modem ignores a received SEP frame if the lt sep gt subparameter is set to 1 enabled the modem reports the received frame using the FPA report Class 2 There is no equivalent parameter in Class 2 Multi Tech Systems Inc Sock
137. hapter 3 Fax Class 2 Commands Session Message Report Responses The modem may be commanded to report the T 30 Phase B and Phase D HDLC control frames as they are sent and received This service supports session diagnostics and the debugging of host software It is enabled by the FBU parameter described in the Parameter Commands section of this chapter These messages are not generated in direct execution of host action commands they are generated for each frame whenever the reported frame is sent or received The host should not attempt to change serial port speed or parity with FBU set It is desirable to suppress echo of host commands if the modem provides that facility The data will be reported with each T 30 command separated by lt CR gt lt LF gt The fill bits will be removed The frame octets will be represented in hex notation and separated by spaces Flags and zero bits are removed Frame octets are reported in the order sent or received FCS bytes are deleted Frame octets are presented with the LSB as the first bit sent or received The following is an example of a received DIS string report FHR FF 13 80 00 4E 78 FE AD lt CR gt lt LF gt Unless specified otherwise the modem reports these frames before the corresponding responses are generated For example the above examples would occur before the standard FIS report was made Report Transmit HDLC Frames FHT Syntax FHT lt transmitted HDLC frame octets gt
138. he waiting period during a fax transmission beyond which the transmission is automatically terminated with an end of page command Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 85 Chapter 3 Fax Class 2 Commands T 30 Session Error Report FAXERR Class 2 0 2 1 not supported Class 2 FAXERR Read syntax gt FAXERR table value read only Valid values 0 255 see Table 3 5 for meaning This read only parameter indicates the cause of a hang up Table 3 5 shows the valid values for this parameter as well as the meaning of each value FAXERR is set by the modem at the conclusion of a fax session The modem will reset this to 0 at the beginning of Phase A off hook time Minimum Phase C Speed FMS Class 2 0 2 1 FMS Class 2 Write syntax FMS BR Valid values 0 5 in BR subparameter codes Default value 0 V 27ter 2400 bit s This optional parameter limits the lowest negotiable speed for a session It is useful for limiting the cost of a transmission by requiring a minimum transmission speed If a facsimile cannot negotiate to a minimum speed it performs an orderly disconnect The units are the same as those defined for the BR Bit Rate subparameter as defined in Table 3 6 in this manual FMINSP Write syntax FMINSP BR Valid values 0 5 in BR subparameter codes Default value 0 V 27ter 2400 bit s This optional parameter limits the lowest negotiable speed for a session
139. ich the page is transmitted between fax modems This is because the link between the fax modems is synchronous and the link between the host and the fax modem is asynchronous Thus when a fax page is transmitted fewer bits are going out of the fax modem than are coming in 8 bits per character versus 10 bits per character If the baud rates are the same or the host to fax modem baud rate is less there will be errors in the fax page because periodically the modem will run out of data to send Therefore the recommended baud rate between the host and the fax modem is at least 38400 bps since the fastest fax modem to fax modem baud rate is between 14400 bps and 28800 bps with the exact rate used depending on the modem model and configuration The same logic applies when receiving fax page data The baud rate is set by the speed at which the dial command is given when originating a fax call the speed at which the answer command is given when manually answering a fax call or the speed at which the last command is received before automatically answering the call Since the baud rate should be set to a minimum of 38400 bps flow control is required on transmitting so that no data is lost Receive flow control may be required to accommodate delays in processing the received data When receiving a fax in a non error corrected fax connection the host should not stop the data flow for long using the selected flow control means lest its internal buffers
140. ield width specifier such as 20r or 20r can be used to print this always in a fixed width field s or S The second as a decimal number two digits t or T The ID of the transmitting FAX machine Leading and trailing blanks are stripped A print style field width specifier such as 9620t or 20t can be used to print this always in a fixed width field y The year as a decimal number without a century Y The year as a decimal number including the century A literal character If the string contains single quotes it will be partitioned into left and also possibly middle and right parts left This portion of the header will be left justified middle This portion of the header will be centered right This portion of the header will be right justified Percent introduced escapes are processed as above Miscellaneous Parameters Buffer Size FBS Class 2 1 only Read syntax FBS modem response syntax lt bs gt lt xoft lt xont gt lt bc gt where lt bs gt total buffer size lt xoft gt XOFF threshold lt xont gt XON threshold lt bc gt current buffer byte count This parameter allows the host to determine the characteristics of the modem s data buffer Flow control is mandatory buffers are needed for flow control Use of the reported values would allow a host to transfer data without provoking XOFF Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 92 C
141. ile online with remote modem The remote configuration escape character is defined in register 13 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 21 Chapter 1 AT Commands S Registers and Result Codes V 92 Commands Command MS Modulation Selection Values See description Defaults See description Description This extended format command selects modulation enables or disables automode and specifies the highest downstream and upstream connection rates using one to four subparameters The command syntax is MS mod automode O max_rate 0O max_rx_rate lt CR gt Subparameters that are not entered retain their current value Commas separate optional subparameters and must be inserted to skip a subparameter Example MS 0 lt CR gt disables automode and keeps all other settings at their current values MS Reports supported options in the format list of supported mod values list of supported automode values 0 list of supported max rate values 0 list of supported max rx rate values Example MS BELL103 V21 BELL212A V22 V22B V23C V32 V32B V34 V90 V92 0 1 0 0 33600 0 0 56000 MS Reports current options in the format mod automode 0 max rate 0 max rx rate Example MS V92 1 0 31200 0 56000 Subparameters mod Specifies the preferred modulation automode enabled or the modulation to use in originating or answering a
142. ine MB33600 Selects 33600 bps on line Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 17 Command RPn Values Default Description Command SBn Values Default Description Command VDR x y Values Default Description Chapter 1 AT Commands S Registers and Result Codes Ring Priority vs AT Command Priority n Oor1 1 RPO The AT command will have priority over the ring S1 will be reset to 0 if an AT command is received This command is storable to memory RP1 The ring will have priority over the AT command S1 will increment even if an AT command and ring are received together and the incoming call will be answered when S1 is equal to SO Note SocketModems do not detect ring cadence of TelTone telephone line simulators as a valid ring Serial Port Baud Rate n speed in bits per second 57600 SB300Sets serial port to 300 bps 5B1200 Sets serial port to 1200 bps SB2400 Sets serial port to 2400 bps SB4800 Sets serial port to 4800 bps SB9600 Sets serial port to 9600 bps SB19200 Sets serial port to 19200 bps SB38400 Sets serial port to 38400 bps 5B57600 Sets serial port to 57600 bps SB115200 Sets serial port to 115200 bps SB230400 Sets serial port to 230400 bps Distinctive Ring Report x 0 1 Distinctive Ring report control See description y 0 255 Minimum ring interval in 100 ms units See description 0 0 Enables reporting of ring cadence information
143. ion Class 2 1 Syntax Syntax Syntax Class 2 Syntax Syntax Syntax FCS FIS FTC FCS VR BR WD LN DF EC BF ST JP Current Session FIS VR BR WD LN DF EC BF ST JP Remote Identification FTC VR BR WD LN DF EC BF ST JP Request for Polling T 32 reference 8 4 2 1 These responses report the T 30 session parameter frames The subparameters are described in Table 3 5 FCS lt siring gt reports the negotiated parameters Phase C data will be formatted as described by the subparameters This message may be generated in execution of FDT or FDR commands before the CONNECT result code if new DCS frames are generated or received F1S lt string gt and FTC lt string gt report remote facsimile station capabilities and intentions If the remote has a document to poll a FPO response will trail FIS lt string gt if the remote station wants to poll the FTC lt string gt response is generated These messages are generated in execution of Originate Answer FDT and FDR commands FDCS FDIS FDTC FDCS VR BR WD LN DF EC BF ST Current Session FDIS VR BR WD LN DF EC BF ST Remote Identification FDTC VR BR WD LN DF EC BF ST Request for Polling The Class 2 responses are essentially the same as the Class 2 1 responses except that Class 2 lacks the JP subparameter and the sets of values supported for each sub parameter is a subset of class 2 1 values See table 3 5 for more information Remote Polling Indication Cla
144. is in the configured flow control ERROR Reported if a frame was received in error Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 40 Chapter 2 Fax Class 1 and 1 0 Commands Service Class 1 Commands Command FAR Description Defined Values Adaptive Reception Control If Adaptive Reception is enabled the modem adaptively detects the selected message carrier or V 21 control messages If the expected carrier is detected the modem operates as specified in the respective FRM lt mod or FRH lt mod commands If V 21 flag preamble is detected instead the modem issues a FRH 3 intermediate result code and then executes an implied FRH 3 command value Decimal number corresponding to the selected option 0 Disable Adaptive Reception Default 1 Enable Adaptive Reception Reporting Current or Selected Values Command FAR Response FAR value Example FAR 0 For the default setting Reporting Supported Range of Parameter Values Command FCL Description Defined Values Command FAR Response FAR value range Example FAR 0 1 Carrier Loss Timeout This parameter allows the DTE to select the modem s loss of carrier delay between initial loss of carrier and qualified loss of carrier when the modem will give up and exit a receive mode Intermediate less than FCL timeout loss of carrier should be indicated by insertion of the SQ BAD signal quality
145. k Password CBP Callback Parity En CBR Callback Security Reset CBS Callback Enable Disable P Set 11 Bit Parity S Change MTSMODEM Password S Enter Setup Password sssssssssss S Change Password S Store Setup Password sss SD ER Dilip siir ectenen e rene return EB Asynchronous Word Length sie MB Online BPS Speed sss SB Serial Port Baud Rate occisos 99969 A TMTSMODEM Remote Configuration Escape BOVEN T ve 21 95A Adaptive Answer Result Code B View Blacklist Numbers 16 C Data Compression Control 16 DC AT Command Control E Fallback and Fall Forward 17 H Direct Connect Enable 17 R Cisco Configuration 99S Command Speed Response amp C Data Carrier DCD Control 12 amp D DTR Control Tm amp E XON XOFF Pacing Control s 12 amp F Load Factory Settings esses amp G Guard Tone Control sees amp K Flow Oontrl 2215 necesse sehek Pe amp L Leased Line Operation ii amp P Pulse Dial Make to Br
146. lass 1 and 1 0 Commands Chapter 2 Fax Class 1 and Class 1 0 Commands Fax I O Processing The fax I O interface supports asynchronous serial and parallel interfaces The character format is 8 bit data no parity and 1 stop bit Start and stop elements are removed from the transmit data and added to the receive data Both transmit and receive data are buffered Flow control using XON XOFF or RTS CTS is provided Unique control character strings are identified filtered or reinserted into the I O data stream These control characters and their resultant action are described below DTE to Modem Transmit Data Stream Characters Detected Action Taken lt DLE gt lt data gt Delete lt DLE gt lt data gt characters lt DLE gt lt ETX gt Recognize as a string terminator and take appropriate action lt DLE gt lt DLE gt Replace with single lt DLE gt character Modem to DTE Receive Data Stream Characters Detected Action Taken lt DLE gt Insert extra lt DLE gt ahead of lt DLE gt The modem also identifies the end of a frame by inserting lt DLE gt lt ETX gt into the data stream after the FCS bytes Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 33 Chapter 2 Fax Class 1 and 1 0 Commands Fax Mode Selection Fax Class 1 and Fax Class 1 0 commands are identified in Table 3 1 Table 3 1 Fax Class 1 and Fax Class 1 0 Commands
147. ll implementations of Class 2 are non standard and manufacturer specific Class 2 0 is the version of Class 2 that was approved by the ITU after substantial changes to the original proposal Major changes include a shortening of command names to three characters a change from decimal values to hexadecimal values the elimination of some commands and the addition of others This chapter is organized so that Class 2 commands are described with and compared to the equivalent Class 2 1 commands Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 48 Chapter 3 Fax Class 2 Commands AT Command Implementation The best way to get an understanding of how Class 2 1 commands or responses are used is to present an example of the transmission and reception of a one page fax using Class 2 1 Below are the commands and responses given to and returned from the transmitting and receiving modems Commands are shown in upper case responses in lower case Transmitting Modem Receiving Modem Line Command response Comments Line Command response Comments T1 AT FCLASS 2 1 Set class to originate as a fax R1 AT FCLASS 2 1 Set class to modem answer as a fax modem Tell the modem the host can receive documents and to auto detect the calling modem Required setting FCLASS 2 1 m OC AT FNR 1 1 1 1 Enable all fax responses AT FNR 1 1 1 1 Enable all fax responses T3 AT FLI 666 6676 Set local
148. llback passwords to 0 This does not reset the number stored in nonvolatile memory Local Callback Inactivity Timer n 1 255 20 Sets the time in minutes that the modem waits for a command before forcing the user to enter the setup password again Store Callback Password y 0 29 x password None Sets the callback security password for the y memory location The password must have 6 to 10 characters and cannot include the or characters Callback Parity n 0 1 0r2 0 Sets parity for the callback security messages CBPO No parity CBP1 Odd parity CBP2 Even parity Callback Security Reset y 0 29 None Clears the password and phone number in the y memory location Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 26 Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Description CBSn Pn Sx S x Chapter 1 AT Commands S Registers and Result Codes Callback Enable Disable n20 1 2 0r3 0 2 CBSO Disables callback security CBS1 Enables local and remote callback security CBS2 Enables remote callback security only CBS3 Disables callback security until local hang up or reset Set 11 bit Parity n Oor1 2 PONo parity P1 Odd parity P2Even parity Enter Setup Password x password 1 8 characters case sensitive
149. low control same as amp K3 Inactivity Timer n 0 1 255 0 Sets the time in minutes after the last character is sent or received that the modem waits before disconnecting A value of zero disables the timer Applies only in buffer mode Note You can also set the inactivity timer by changing the value of S30 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 15 Command Values Default Description Command Values Default Description Command Values Defaults Description Command Values Default Description Command Values Description Command Values Default Description Command Values Default Description Vn 96A B Cn DCn Chapter 1 AT Commands S Registers and Result Codes Protocol Result Code n 0 1 or2 1 WO Disables the appending of the protocol result code to the DCE speed W1 Enables the appending of the protocol result code to the DCE speed W2 Same as W1 XON XOFF Pass Through n Oor1 0 WO Modem responds to and discards XON XOFF characters X1 Modem responds to and passes XON XOFF characters Note This is also controlled via amp E6 and amp E7 Data Calling Tone n Oor1 1 C0 Disable V 25 data calling tone to deny remote data fax voice discrimination C1 Enable V 25 data calling tone to allow remote data fax voice discrimination Adaptive Answer Result Code Enable nz z0or1
150. lti Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 136
151. lti pulse LPC LSLTCQ Least Squares Lattice Trellis Coded Quantization IS 101 does not make any provisions for standard compression modifiers VTD lt dur gt Select Default Beep Tone Duration Timer DTMF Tone Generation Duration OK if the modem accepts the command ERROR if the parameter is out of range The VTD command causes the modem to set the default DTMF tone generation duration used with the VTS command This command does not affect the ATD command settings The lt dur gt parameter range is given by the VTD command in units of 0 01 seconds A setting of VTD 0 specifies a manufacturer specific time interval Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 115 Command Values Result Codes Description Chapter 4 Voice Commands VDR lt enable gt lt report gt Enable Disable Distinctive Ring Ring Cadence Reporting See the Description OK if the modem accepts the command ERROR if the parameter is out of range The VDR command causes the modem to enable or disable reporting of the ring cadence information and to control the timing of the Ring event code report if ring cadence reporting is enabled This report format is one line per silence period and one line per ring period The length of the silence period is in the form DROF lt number in units of 0 1 seconds gt lt CR gt lt LF gt and the length of the ring in the form DRON lt number in units of 0 1 seconds gt
152. ly values allowed in the FCS parameter and FCS report All values that are sums of these values shall only be used to indicate multiple capabilities these are allowed in FIS and FCC parameters For example value 07 01 02 04 would indicate capability for all metric based resolutions 2 For subparameter JP values 00 01 02 04 08 10 20 and 40 hexadecimal indicate a single choice All values that are sums of these values shall only be used to indicate multiple capabilities in FIS and FCC subparameters and to indicate the choice in the FCS subparameter For example to indicate support for JPEG full color mode and no subsampling the host should set the JP subparameter to 01 02 10 13h If one or several of the values 02h to 40h are not used that means that the default value for the subparameter e g respectively gray scale custom Huffman tables 8 bit pel component 4 1 1 subsampling ratio D50 illuminant default gamut range is used as defined in Annex E T 30 and Annex G T 4 3 The modem ignores this value in FCC and in FIS when generating DIS or DTC frames Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 76 Local ID String Class 2 1 Write syntax Values Chapter 3 Fax Class 2 Commands FLI FLI lt local ID string gt 20 character printable ASCII string Mandatory values 20 character string Table 3 T 30 Default Class 2 Write syntax Valid values
153. mand The voice data is buffered to withstand gaps of missing data from the PC If the modem does not have any current voice data the modem sends silence over to the analog destination until the PC provides more voice data The modem returns the OK result code and returns to Command mode after the modem has completely transmitted its buffer contents The Inactivity Timer can be used to terminate the transmit data state after which the modem returns to Command mode VGR lt gain gt Set the Gain for Received Voice Samples 0 255 OK if the modem accepts the command ERROR if the parameter is out of range The VGR command causes the modem to set the gain for the received voice samples Receive gain values larger than 128 indicate a larger gain than nominal and values smaller than 128 indicate a gain smaller than nominal The modem may limit the receive gain to a narrower range such as from 120 to 136 or from 120 to 128 The value 0 is reserved for modem automatic gain control AGC VGT lt level gt Set the Volume for Transmitted Voice Samples OK if the modem accepts the command ERROR if the parameter is out of range The VGT command causes the modem to set the volume control either by attenuating or amplifying the signal for the transmitted voice samples Values larger than 128 indicate a larger gain than nominal and values smaller than 128 indicate a gain smaller than nominal The modem may limit the receive gain to a narrower range
154. means that the modem generates a dual tone at 3000 and 3300 Hz for the default duration 3300 means that the modem generates a single tone at 3300 Hz for the default duration The quantity in the curly braces consists of a two element list The first element is the DTMF tone character and the second element is the tone duration in 0 01 seconds The DTMF tone characters are listed above A list may contain null elements For example means DTMF tone 2 for the default duration means silence for the default duration The modem will stop the tone generation at the point in the string where the modem detects a parsing error encounters an invalid frequency range encounters a CR or encounters a semi colon The modem returns the OK result code if the PC accepts the command The ERROR result code is displayed if the modem encountered an error in parsing the subparameter or if the selected frequency is out of range Example Using the VTS command for tone generation without using any null elements AT VTS 1 2 1000 1300 50 6 800 1300 50 9 The above string will perform as follows Play DTMF 1 with a duration given by the VTD command Play DTMF 2 with a duration given by the VTD command Play tone pair at 1000 Hz and 1300 Hz with a duration of 500 ms Play DTMF with a duration of 60 ms Play tone pair at 800 Hz and 1300 Hz with a duration of 500 ms Play DTMF 9 with a duration given by the VTD command Refer to th
155. mid gt Non PCM coding reports the compression method identifiers in the form lt cmid gt lt author gt where cmid is the general classification of the compression method and author is the source of the method The source author may be a proprietary method or it may reference a published standard Each field limit is 20 characters The VXT command starts a translation to or from a particular manufacturer s proprietary voice data stream format to an unsigned non PCM format Identifier Description Signed PCM Linear PCM sampling using twos complement signed numbers Unsigned PCM Linear PCM sampling using unsigned numbers A Log Author Compression using a law U Log Author Compression using u law DPCM Author Differential Pulse Coded Modulation DPCMAQ Author Differential Pulse Coded Modulation with Adaptive Quantizier ADPCM Author Adaptive Differential Pulse Coded Modulation VSELP Author Vector Sum Exited Linear Predictor RELP Author Residual Exited Linear Predictor CELP Author Code Book Exited Linear Predictor CVSD Author Continuously Variable Slope Delta Modulation TDHS Author Time Domain Harmonic Distortion ADM Author Adaptive Delta Modulation DM Author Delta Modulation APC Author Adaptive Predictive Coding ATC Author Adaptive Transform Coding SBC Author Sub Band Coding GSM Author Regular Pulse Exitation Long term Predictor RPELTP LPC Author Linear Predictive Coding EAPDPCM Author Embedded Bit ADPCM MP LPC Author Mu
156. mode with autobauding and disables VPR 0 automatic DCE answering The DCE waits for a phone call not necessarily in Data mode The DCE agrees At some time a remote station calls The DCE switches to Voice mode The DCE selects a fixed AT VIT 60 DTE DCE Interface Rate The DTE knows from the sample AT VPR 16 rate selected earlier and the bits per sample that the DTE DCE Interface Rate should be 38400 baud The DTE DCE Inactivity Timer starts with a value of 60 seconds The DCE agrees at the old DTE DCE Interface Rate The DTE selects all devices Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 126 OK AT VIT 0 VPR 0 S0 0 AT FCLASS 8 AT VPR 16 OK lt DLE gt lt R gt AT VLS 2 OK AT VTX CONNECT lt Data gt lt DLE gt lt ETX gt OK AT VTS 933 0 12 OK Chapter 4 Voice Commands The DCE agrees The DTE selects Data mode Command mode with autobauding and disables automatic DCE answering The FCLASS 0 DCE waits for a phone call not necessarily in Data mode The DCE switches to Voice mode The DCE selects a fixed DTE DCEAT VIT 60 Interface Rate The DTE knows from the sample rate selected earlier and the bits per sample that the DTE DCE Interface Rate should be 38400 baud The DTE DCE Inactivity Timer starts with a value of 60 seconds The DCE agrees at the old DTE DCE Interface Rate The DCE selects another ring at 38400 bps The DCE answ
157. modem in sequence with the transmitted data Data mode Modem receives the break from the remote modem KO Clear data buffers and send break to the computer K1 Same as WO K2 Send break immediately to the computer K3 Same as K2 K4 Send break to the computer in sequence with the received data K5 Same as K4 Online command mode Modem receives a Bn command from the computer KO Clear data buffers and send break to the remote modem K1 Same as KO K2 Send break immediately to the remote modem K3 Same as K2 K4 Send break to the remote modem in sequence with the transmitted data K5 Same as K4 Error Correction Mode Selection n 0 5 or 7 3 WO Non error correction mode with data buffering buffer mode same as amp Q6 N1 Direct mode N2 MNP reliable mode If the modem cannot make an MNP connection it disconnects NS V 42 MNP auto reliable mode The modem attempts first to connect in V 42 error correction mode then in MNP mode and finally in non error correction buffer mode with continued operation N4 V 42 reliable mode If the modem cannot make a V 42 connection it disconnects N5 V 42 MNP or non error correction same as N3 7 V 42 MNP or non error correction same as N3 Flow Control Selection n 0 1 or3 3 Q0_ Disable flow control same as amp KO Q1 XON XOFF software flow control same as amp K4 Q2 CTS only flow control Not supported Q3 RTS CTS hardware f
158. n Selection 22 MS Reports Supported Options 22 SPEC Ves Call Wait zs eenhe eee PIG PCM Upstream Ignore A PMH Modem on Hold PMHF Modem Hook Flash PMHR Modem on Hold Initiate s PMHT Modem on Hold Timer POC Quick Connect eerie cte erento VCID Caller ID ER VDR Distinctive Ring Report ssse V 92 commands CBD Callback Delay 26 V 92 commands CBR Callback Security Reset 26 V 92 commands CBS Callbacl Eneable Disable 27 bE 0 c 22 V 92 Modem Hook Flash command PMHF 24 Vertical Resolution Format Conversion FLNFC 89 Vertical Resolution Format Conversion FVRFC 89 Vertical Resolution Format Conversion Parameters 89 90 View Numbers in Blacklist command 9 4B 16 Voice commands FCLASS 8 Detect amp Control DTMF 106 AT FCLASS Display Service Class Capabilities106 FCLASS Select Modem Operating Mode 105 VNH lt hook gt Automatic Hang up Control 107 FMI Report Manufacturer ID 107 FMM Report Product ID 107 FMR Report Version Level 107 FLO lt
159. nable n 0 1 or2 2 Controls the action to be taken upon detection of a call waiting tone in V 92 mode Values specified by this command are not modified when an AT amp F command is issued PCW 0 PCW 1 PCW 2 PCW PCW Toggles V 24 Circuit 125 and collects Caller ID if enabled by VCID Hangs up Ignores V 92 call waiting Displays the allowed values Displays the current value PCM Upstream Ignore n Oor1 1 Controls the use of PCM upstream during V 92 operation PCM upstream allows faster upload speeds to a V 92 server PIG 0 PIG 1 PIG PIG Disables PCM upstream Enables PCM upstream Displays the allowed values Displays the current value Modem on Hold Enable n Oor1 1 Controls if modem on hold procedures are enabled during V 92 operation Normally controlled by a modem on hold program Values specified by this command are not modified when an AT amp F command is issued PMH 0 PMH 1 PMH PMH Enables V 92 modem on hold Disables V 92 modem on hold Displays the allowed values Displays the current value Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 23 Command Values Default Description Command Values Default Description Command Values Default Description PMHF PMHR n PMHT n Chapter 1 AT Commands S Registers and Result Cod V 92 Modem Hook Flash N A N A Causes the DCE to go on hook for a specified period of
160. nce Guide S000263C 101 Chapter 3 Fax Class 2 Commands ASCII Conversion Chart 00 0 SP 20 32 40 64 E 60 96 OANOaARWND OANDAARWNM O A B C D E F G H J K L M N O P Q R S T U V w X Y Z A N XxzZ caomouozz czxc c rgommoour tI HONK xX E cCc eo0o40002353 x o0 o0o0ooonmpm is m cr NUL Null or all zeros VT Vertical Tab SYN Sync SOH Start of Header FF Form Feed ETB End Transmission Block STX Startof Text CR Carriage Return CAN Cancel ETX End of Text SO Shift Out EM End of Medium EOT End of Transmission SI Shift In SUB Substitute ENQ Enquiry DLE Data Link Escape ESC Escape ACK Acknowledge DC1 Device Control 1 FS File Separator BEL Bell or Alarm DC2 Device Control 2 GS Group Separator BS Backspace DC3 Device Control 3 RS Record Separator HT Horizontal Tab DC4 Device Control 4 US Unit Separator LF Line Feed NAK Negative Acknowledge DEL Delete Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide 8000263C 102 Chapter 4 Voice Commands Chapter 4 Voice Commands Introduction This chapter describes V command support The V Command standard IS 101 Voice Control Interim Standard for Asynchronous DCE prepared by the TIA Technical Subcommittee TR29 2 on Facsimile Digital Interface defines the commands that a PC user may issue to configure and control a voice fax data modem and the responses result codes
161. nd Values Result Codes Description Command Values Default Result Codes Description Chapter 4 Voice Commands VRX Enter Voice Receive State 0 1 2 127 128 255 Values above if the modem accepts the command ERROR if the modem is not connected to an off hook Telco line or one non Telco input device VRX causes the modem to start the voice reception process The modem starts the process by returning the CONNECT result code to the PC The modem then sends shielded voice data to the PC in the format previously selected by the VSM command The modem exits the voice receive state by one of two means a DLE lI and an Inactivity Timer timeout During the voice receive the modem informs the PC of pertinent events such as Presumed End of Message Quiet and Presumed Hang Up Silence detected Busy detected and Dial Tone detected so that at the discretion of the PC the PC may terminate the voice receive state On termination of the voice receive state the modem returns the OK result code and then returns to the Voice Command state The Inactivity Timer is in effect during the receive operation If the PC uses this timer and stops the modem from performing unwanted restarts the PC must assure that there is data sent from the PC to the modem often enough to refresh the timer VRX 0 Voice receive operation This selection does not provide for modem periodical tone production during a voice receive operation The
162. nse command 96S 17 Command string rehenes commands and responses Commands and Responses Overview Fax Class 2 55 Communication Standard command B Communications prOgralms eiecit eter erede tuac Compound Parametets eere eere retainer configuration Global Wigard ui eret een etate inea oen 130 12 7 129 Configuration Selecting reset configuration command amp W 14 Control Tone Cadence Reporting command VDT 117 Copy Quality Checking FCQ esas 83 Country Code Displaying 10 Current Session Parameters FIS 73 Current Session Results Parameters FCS sild Current Sessions parameters 0 020 000 cceesccctsses cesesebeceseet 73 D Data Bit Order parameters sese 87 Data buffering sss 13 Data Calling Tone command C 16 Data Carrier Detect command 212 Data Compression Control command 96C 16 Data Compression Format Conversion FDFFC 89 Ro Eu MER E EN PEE ET E Data Recepl iom V PDE necu eret eene reis Data Reception command eoe tcrtio tend Data Set Ready Control command m Data Terminal Ready Control command 12 Data Transtar MOoUB 5 esosascioeneemaaed edes Data Transmission FDT m Data Transmission command
163. nses When a parameter is set the response is OK if the parameter value is valid and ERROR if the parameter value is invalid When a parameter is read the response has the following format F lt parameter_name gt lt value gt When the valid values for a parameter are requested the response is given as a valid parameter string as described below When action commands are given responses may be given to report the progress of the action command For example the ATD command may give the responses FCO F S 0 2 2 2 0 0 0 0 before the OK response is given Responses to action commands have the following format F lt parameter_name gt lt value gt Parameter types There are three types of parameters numeric character string and compound Numeric parameters are hexadecimal numbers in the range 0 FFh 0 255 decimal or O FFFFh 0 65535 decimal depending on the parameter being set or read Any number of leading zeros is permissible A valid values string for numeric parameters consists of a list of numbers and or number ranges separated by commas Number ranges consist of two values separated by a hyphen For example A 14 17 1e means the valid parameter values are Ah 14h 15h 16h 17h and 1Eh 10 20 21 22 23 and 30 in decimal notation String parameters consist of a string of characters enclosed by double quote characters The string may not contain non printable characters or double quote characters A valid values string
164. nswer T 30 T1 timeout 20 3F 20 39 Transmit Phase B hang up codes 20 20 Unspecified transmit Phase B error 21 21 Remote cannot receive or send 22 22 COMREC error in transmit Phase B 23 23 COMREC invalid command received 24 24 RSPEC error 25 25 DCS sent three times without response 26 26 DIS DTC received 3 times DCS not recognized 27 27 Failure to train at 2400 bps or FMS FMINSP value 28 28 RSPREC invalid response received 40 4F 40 49 Transmit Phase C hang up codes 40 40 Unspecified transmit Phase C error 41 Unspecified image format error 42 Image conversion error 43 43 host to modem data underflow 44 Unrecognized transparent data command 45 E Image error line length wrong 46 Image error page length wrong 47 Image error wrong compression code 50 6F 50 69 Transmit Phase D hang up codes 50 50 Unspecified transmit Phase D error 51 51 RSPREC error 52 52 No response to MPS repeated 3 times 53 53 Invalid response to MPS 54 54 No response to EOP repeated 3 times 55 55 Invalid response to EOP 56 56 No response to EOM repeated 3 times 57 57 Invalid response to EOM 58 58 Unable to continue after PIN or PIP 70 8F 70 89 Receive Phase B hang up codes 70 70 Unspecified receive Phase B error Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 70 Chapter 3 Fax Class 2 Commands Class 2 1 Class2 Cause 71 71 RSPREC error
165. nterval parameter entered is out of range The VRN command sets the amount of time that the modem will wait for Ring Back If the modem does not detect a Ring Back within the time period interval the modem assumes that the remote device has gone off hook and returns the OK result code The modem only uses this command in call origination transactions A VRN setting greater than the S Register S7 setting means that only the S7 timer is in effect Entering VRA 0 forces the modem to return the OK result code immediately after dialing Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide 8000263C 112 Chapter 4 Voice Commands Command VSD lt sds gt lt sdi gt Set Silence Detection Sensitivity Values 0 256 in 0 1 second intervals Result Codes OK if modem accepts the command ERROR if one or more of the following apply 1 the lt sds gt or lt sdi gt parameter entered is out of range or 2 either of the two parameters is missing from the command string If an error occurs modem retains the previous lt sds gt and lt sdi gt parameter values Description The VSD command sets the silence detection sensitivity and the required period of silence before the modem reports silence detected at the end of a voice receive either with the Presumed End of Message Quiet or Presumed Hang Up Silence event reports The table below outlines the possible combinations of the VSD and VSM commands using the lt sds g
166. odem s voice buffer where skid is the amount of octets that the modem could accept before losing data after the modem asserts an off flow control signal to the PC You can use the VBT command to balance performance versus robustness For example if the PC knows there are only 16450 UARTs present a small skid is probably sufficient If there are 16550 UARTs present a larger skid is probably required VBT Report Modem Flow Control Assert and Deassert Points The VBT command displays the possible lt assert gt and lt deassert gt values set by the VBT command followed by the OK result code In the lines below the VBT command is used to ask about the modem s flow control and buffer size ranges The modem reports the deassert point is adjustable between 20 and 100 octets the assert point is adjustable between 150 and 180 octets and the transmit buffer size is 200 octets AT VBT 20 100 OK 150 180 200 VPP lt enable gt Enable or Disable Voice Mode Packet Protocol 0 1 2 255 reserved for future standards OK if the modem accepts the command ERROR if the lt enable gt value is out of range The VPP command enables and disables the Packet protocol for Voice mode operation and handles the new unsolicited Voice mode result codes The Packet protocol is used to detect lost octets on the modem to PC serial link and to recover the lost octets by requesting retransmission The Packet protocol assumes that
167. on the PSTN data carrier Applies to FAX sending for all Multi Tech modems FBOR 1 Reversed bit order for Phase C data The last bit transferred of each byte is the first bit transferred on the PSTN data carrier Applies to FAX sending for all Multi Tech modems The effect of this parameter is illustrated for the EOL pattern in the Phase C Data Format Parameters section in this chapter Phase C Received EOL Alignment FEA and FREL Class 2 0 2 1 FEA Write syntax FEA lt value gt Valid values 0 1 Default value 0 FEA 0 EOL patterns are bit aligned as received FEA 1 The last received bits of EOL patterns are byte aligned by the modem with necessary zero fill bits inserted There are two 2 byte binary EOL patterns in which xxxx represents previous data bits zero bits or other leading data FBO 0 0000xxxx 10000000 FBO 1 xxxx0000 00000001 Class 2 FREL Write syntax FREL lt value gt Valid values 0 1 Default value 0 FREL 0 EOL patterns are bit aligned as received FREL 1 The last received bits of EOL patterns are byte aligned by the modem with necessary zero fill bits inserted There are two 2 byte binary EOL patterns in which xxxx represents previous data bits zero bits or other leading data FBOR 1 0000xxxx 10000000 FBOR 1 xxxx0000 00000001 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 87 Chapter 3 Fax Class 2 Commands Format conversion
168. orting Control Tone Cadence Reporting Event Reporting and Masking Report Event Reporting and Masking Capabilities Set Modem Flow Control Assert and De Assert Points Report Modem Flow Control Assert and De Assert Points Enable or Disable Voice Mode Packet Protocol Select DTE DCE Interface Rate Turn Off Autobaud Voice V Commands Detail Command Values Default Result Codes Description FCLASS lt mode gt lt Enter gt Select Modem Operating Mode 0 1 2 0 2 3 7 8 9 15 16 255 0 OK if the command is accepted ERROR if the parameter value is out of range The FCLASS command selects the mode of operation data facsimile or voice as shown below uiu Modem Operating Mode selects data modem mode i selects Service Class 1 fax data modem mode 2 0 selects Class 2 0 fax data modem mode 2 selects non standard Class 2 modem 3 7 reserved for other Fax modes 8 selects IS 101 Voice mode 9 15 reserved for other Voice modes 16 255 reserved for future standards Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 105 Command Values Description Command Values Default Result Codes Description Chapter 4 Voice Commands FCLASS 8 DTMF Detect Detect and Control DTMF 8 characters case sensitive The FCLASS 8 is used to detect and control DTMF using the procedure below 1 Enter the command AT FCLASS 8 cr to the modem 2 Call into modem with phone A gt r incoming
169. overflow The local receiving modem has no way to stop the data from the remote modem Therefore if its internal buffers overflow data loss will occur The host must send a DC2 character ASCII 12h after the connect response is received before the modem will transmit the received page data to the host The modem can cancel a page transmission by sending a CAN character ASCII 18h to the host Upon receiving the CAN character the host should send the end of page sequence DLE ETX to the modem There are two reasons why the modem might send a cancel to the host on page transmission First the FCT timeout may have occurred which would result in a FHS response as the modem hung up Second the modem might cancel the host because it has sent enough lines for the negotiated page length The host can also cancel page reception by sending a CAN to the modem to which the modem will respond by sending a DLE ETX to the host and then display a FHS response as the modem hangs up If you are sending data in Class 2 0 2 1 with format conversions enabled see Format Conversion FFC then you must specify the format of the data for each image parameter that is different the negotiated parameters You must specify the data in the form of DLE sequences before the image is sent or between each image segment The table below indicates what sequences should be sent for different image parameters Multi Tech Systems Inc SocketModem MT5634SMIxx Reference
170. pabilities lt label gt lt devices gt transmit event gt lt receive event gt lt idle event gt The VLS command displays the modem s current source and destination device information for the analog data to be transmitted Refer to the VLS lt label gt command for label code and description information Note that the VEM command contains more information about event reporting Example In the lines below the modem reports that it supports only a Telco line at Service Level C AT VLS 0 0A0001000 0E601800 1A803840 1 T 0A0001000 0E601800 1A803840 OK VRA lt interval gt Set Ring Back Goes Away Timer 0 50 in 0 10 second increments 50 OK if the modem accepts the command ERROR if the interval parameter entered is out of range The VRA command sets the amount of time the modem will wait between ring backs before the modem can assume that the remote device has gone off hook This command does not effect the Quiet Answer dial modifier the VRA command functions the same as the entered at the end of a dial string Entering VRA 0 forces the modem to return the OK result code immediately after the first Ring Back The parameter interval refers to the silence interval length between the end of one ring interval and the start of the next ring interval VRN lt interval gt Set Ring Back Never Appeared Timer 0 10 in 1 0 second increments 10 OK if modem accepts the command ERROR if the i
171. ple 24 400 bit s 1s selected Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 98 Chapter 3 Fax Class 2 Commands Answer and receive a two page facsimile with V 34 half duplex Class 2 1 Host Modem Remote Station Commands Responses Action Local Modem Action AT FIS D 3 O Set for Rec V 34 m Annex A T 30 Annex C T 30 or Annex F T 30 T FDT A AT FDR AT FDR FCO O FCS B 1 CONNECT st page data gt lt DLE gt lt ETX gt FPS 1 lt Ic gt 0 0 0 FET 0 OK CONNECT lt 2nd page data gt lt DLE gt lt ETX gt FPS 1 lt Ic gt 0 0 0 FET 2 answer detect CNG send ANSam get CM send JM get CJ negotiate Rec V 34 begin control channel send DIS get DCS send CFR switch to primary channel get page 1 FCD switch to control channel get MPS send MCF switch to primary channel get page 2 FCD switch to control channel get EOP send CNG detect ANSam send CM get JM send CJ negotiate Rec V 34 begin control channel get DIS send DCS get CFR switch to primary channel send page 1 FCD switch to control channel send MPS get MCF switch to primary channel send page 2 FCD switch to control channel send EOP get MCF send DCN hang up select max rate of 33 600 bit s K K K Rec T 30 selected with JM signal from remote terminal the remote indicated 28 800 bit s ability in this exam
172. ple 28 800 bit s 1s selected Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 99 Alphabetic List of Commands and Responses Chapter 3 Fax Class 2 Commands Name Description A Answer command D string Originate command FAA Auto Answer Mode parameter FAXERR Fax Error Value parameter FBADLIN Number of Consecutive Bad Lines for a Bad Page parameter FBADMUL Error Threshold Multiplier FBO Phase C Data Bit Order parameter FBS Buffer Size read only parameter FBU Session Message Reporting parameter FPI Report Remote ID response CIG FCFR Confirmation to Receive prompt FCLASS Service Class ID FCO Facsimile Connection response FCQ Copy Quality Capabilities parameter FCR Capability to Receive parameter FCl Report remote ID response CSI FPl Local Polling ID String parameter FCS Report Session Parameters response FCS Current Session results FDFFC Data Compression Format Conversion parameter FCC modem Capabilities parameters FIS Report Remote Capabilities response FIS Current Session Negotiation parameters FDR Receive Phase C Data command FDT Transmit Phase C Data command FRY CTC Retry Value FTC Report Remote capabilities response F
173. product manufacturer FMI Multi Tech OK Request Model Identification This command causes the modem to report the modem product model FMM V90 OK Request Revision Identification This command causes the modem to transmit one or more lines of information text identifying the modem version revision level or date FMR V3 001 V90 2M DLS OK Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 43 Chapter 2 Fax Class 1 and 1 0 Commands Command FLO Flow Control Description This parameter allows the DTE to identify and select the type of flow control used Syntax FLO lt method gt Defined Values lt method gt Decimal number corresponding to the selected option 0 XON XOFF and RTS CTS flow control turned off 1 Use XON XOFF flow control in either direction 2 Use RTS for flow control of the modem by the DTE use CTS for flow control of the DTE by the modem Reporting Current or Selected Values Command FLO Response FLO lt method gt Example FLO 0 For the default setting Reporting Supported Range of Parameter Values Command FLO Response FLO lt method gt range Example FLO 0 2 Result Codes OK lt method gt 0 2 ERROR Otherwise Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 44 Examples Examples of calling transmitting and answering receiving one page using Fax Class 1 commands are shown in Table 3 4 and Table 3
174. r gt Select Flow Control Method 0 1 2 3 255Result Codes OK or ERROR The FLO command lets you select the method of flow control provided and used by the modem If FLO 0 some other method such as credit flow control is used The Xon Xoff method is required Xon is the ASCII character lt DC1 gt 11 hex Xoff is the ASCII character gt DC3 gt 13 hex CCITT V 24 circuits 106 and 133 are optional flow control methods If circuits 106 and 133 are not used FLO lt gt 2 then circuit 106 is held On whenever FCLASS 8 In Voice mode circuit 105 has no effect on the state of transmitted data Circuit 133 normally reverts to use as circuit 105 RTS when not used for Flow Control FLO 0 Disable Xon Xoff and 133 105 flow control FLO 1 Enable Xon Xoff flow control in either direction FLO 2 Enable CCITT Circuit 133 for flow control of the modem by the PC use CCITT Circuit 106 for flow control of the PC by the modem FLO 3 255 Reserved for future standards VIP 0 optional The VIP command causes the modem to initialize all Voice parameters to the factory default settings This command has the same effect as if the PC had issued commands for the individual parameter settings The VIP command has no effect on the FCLASS setting The optional command VIP 0 Enter provides a selection of default profiles Initialize Voice Parameters Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 107 Comma
175. rame get DCS frame expect another frame lt DCS frame data gt send FCS flags lt DLE gt lt ETX gt OK drop carrier AT FTS 8 wait 80 ms FTM 96 CONNECT send V 29 carrier detect carrier lt TCF data pattern gt send TCF data get TCF data lt DLE gt lt ETX gt OK drop carrier AT FRH 3 detect carrier send V 21 carrier CONNECT detect flags send flags lt CFR frame data gt get CFR frame get CRF frame Final frame bit set lt DLE gt lt ETX gt check FCS send FCS frame OK OK accept FCS AT FRH 3 NO CARRIER detect loss of carrier drop carrier AT FTM 96 CONNECT send V 29 carrier detect carrier lt page image data gt send page data receive page lt DLE gt lt ETX gt drop carrier OK AT FTS 8 wait 80 ms FRH 3 send V 21 carrier detect carrier send flags detect flags CONNECT send EOP frame receives EOP lt EOP frame data gt send FCS lt DLE gt lt ETX gt OK drop carrier final frame AT FRH 3 detect carrier send V 21 carrier CONNECT detect flags send flags lt MCF frame data gt get MCF frame get MCF frame Final frame bit set lt DLE gt lt ETX gt check FCS send FCS frame OK OK accept FCS Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 45 Chapter 2 Fax Class 1 and 1 0 Commands DTE Commands Modem Responses Local Modem Action Remote Station Action Notes AT FRH 3 NO CARRIER detect loss of carrier drop carrier AT FRH 3 send V 21 carrier lt DNC frame gt
176. rates OK result code and returns to command mode The receive buffer is cleared and all data received from the remote is discarded If the modem detects a DTR drop while amp D2 is in effect it goes on hook sends lt DLE gt lt ETX gt to the DTE generates OK result code and returns to command mode If the modem detects a DTR drop while amp D3 is in effect the modem performs a warm reset Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 35 Chapter 2 Fax Class 1 and 1 0 Commands Fax Data Transmission Fax data transmission is initiated by the AT FTM lt mod gt command After this command is issued the modem generates the CONNECT message and transmits carrier in the modulation scheme specified by the parameter n The modem then transmits constant 1 bits for a minimum of one second and continues to transmit constant 1 bits until it receives a character from the DTE When data is received from the DTE the modem deletes start and stop bits and deletes all lt DLE gt lt chr gt character pairs before transmitting the data to the remote Each lt DLE gt lt DLE gt sequence is transmitted as a single DLE DLE ETX is considered as the end of stream marker and is not transmitted All data received from the DTE after the DLE ETX is ignored by the modem until the modem generates either the CONNECT OK or ERROR result code If no more data is in the transmit buffer and the last transmitted chara
177. requires squelch on any microphone activity S1 External speaker requires squelch on any microphone activity HO External microphone and speaker combination handset or headset Zn Manufacturer specific device n gt 0 Mn Manufacturer specific extension n gt 1 Sn Manufacturer specific extension n gt 1 Hn Manufacturer specific extension n gt 0 The list below contains 16 commonly used hardware configurations label and codes used to select each configuration lt label gt Code s Description none Modem on hook Local phone connected to Telco 1 T Modem off hook and connected to Telco Local phone provided with power to detect hook condition L Modem off hook Local phone connected to modem LT Modem off hook Local phone connected to Telco Modem connected to Telco S Internal speaker connected to the modem Modem is on hook Local phone connected to Telco 5 ST Internal speaker connected to Telco Modem off hook Modem connected to Telco Local phone provided with power to detect hook condition 6 M Internal microphone connected to modem Modem is on hook Local phone connected to Telco 7 MST Internal microphone and internal speaker connected to Telco Squelching active Modem is off hook and connected to Telco Local phone provided with power to detect hook condition gt e ON 8 S1 External speaker connected to modem Modem is on hook Local phone connected to Telco 9 S1T External speaker connected to Telco
178. ried For example AT FCLASS 2 Response Returned FCLASS 2 OK The command name as prefix can be omitted by setting the FV option to zero see Phase C Data Format Parameters If the command name prefix is omitted then the response returned would simply be 2 Parameters Parameter commands set operating conditions Multiple parameter commands can be sent in a command string however semicolons must separate them All action commands and responses are mandatory Some parameter commands are mandatory but others are optional Mandatory values are specified for each command and parameter Action Commands Class 2 1 Class2 Action description FDR FDR Begin or continue Phase C data reception FDT FDT Begin or continue Phase C data transmission FET End page or document command FIP Initialize Class 2 0 2 1 parameters command FKS FK Terminate session command orderly fax abort Depends on the capability to receive set by FCR Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 55 Modem Responses Chapter 3 Fax Class 2 Commands Class 2 1 Class2 Response description FCFR Confirmation to Receive prompt FCO FCON Facsimile connection FDM Transition to data modem operation FVO FVOICE Transition to voice operation FCS FDCS Report negotiated session parameters DCS
179. ring indication is displayed followed by OK The modem is now in Online Voice Command mode allowing DTMF characters to be passed through from the remote phone The characters are displayed as shown below AT FCLASS 8 OK gt R is Ring gt gt 1 gt 1 gt The Data link escape character gt and the start of DTMF tone shielding character 2 are both output once a button is pressed The DTMF digit will continue to be output along with a gt until the button is released Then another gt is output along with a DTMF transitions to off character Silence on the line is indicated with a gt s displayed DTMF dual tone multi frequency is the signal to the phone company that you generate when you press an ordinary telephone s touch keys DTMF has generally replaced loop disconnect pulse or rotary dialing With DTMF each key you press on your phone generates two tones of specific frequencies So that a voice can t imitate the tones one tone is generated from a high frequency group of tones and the other from a low frequency group Touch Tone Signals Digit Low frequency High frequency 1 697 Hz 1209 Hz 2 697 1336 3 697 1477 4 770 1209 5 770 1336 6 770 1477 7 852 1209 8 852 1336 9 852 1477 0 941 1336 941 1209 941 1477 When any key is pressed both the high and low tones of the row are generated hence the name dual tone For example pressing the 5 button generates the tones
180. rower range e g 120 128 A setting of lt scs gt 0 disables silence compression lt sel gt is used to modify the amount of silence expansion This parameter represents the minimum amount of silence that the modem will expand a period of silence that was previously deleted with a non zero sel parameter A setting of lt sel gt 0 means the modem will not modify the silence expansion The valid range of values is in 0 1second increments The modem ignores the lt sel gt parameter if the lt scs gt parameter is 0 silence compression disabled Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 114 Command Result Codes Description Command Result Codes Description Chapter 4 Voice Commands VSM Report Voice Compression Method OK The VSM command reports several compression method identifiers in one of two ways either 1 a compression method for PCM coding from the table below or 2 a co operative identifier non PCM coding used with other manufacturer s equipment Example The following shows an inquiry about the modem support of compression and other data In this example the modem reports that it supports two compression methods AT VSM 128 SIGNED PCM 12 0 7200 8000 11025 127 129 0 50 132 ADPCM AQ 2 40 7200 128 0 50 The compression method identifiers for PCM coding display the general classification of the compression method in the form lt c
181. s 2 1 FPS Write syntax FPS lt ppr gt Values 1 2 3 Default 1 The FPS parameter contains a value representing the post page response including copy quality and related end of page status These values correspond to post page response messages defined in T 30 The receiving modem sets this parameter after it receives a page of Phase C data The transmitting modem sets this parameter with the status reported by the receiving station The host may inspect or modify this parameter The set of lt ppr gt values is defined in Table 3 6 These values are also reported by the FPS lt ppr gt response to the FDR command The Multi Tech implementation does not support lt ppr gt values 4 and 5 Table 3 6 Class 2 1 T 30 Post Page Response Message Codes Value Mnemonic Description 1 MCF Page good 2 RTN Page bad retrain requested 3 RTP Page good retrain requested 4 PIN Page bad retrain requested interrupt request accepted 5 PIP Page good interrupt request accepted The modem may set this parameter to values 1 2 or 3 based on its own copy quality checking or access to received signal quality The modem sets this parameter to a value of 1 if copy quality checking is disabled X FCQ 0 A receiving host may do its own copy quality checking or decide to request a procedure interrupt from the remote station The host will receive a report of the copy quality ppr as part of the FPS ppr
182. second The current second UTC zone Range 0 to 59 zone The number of seconds east positive or west negative that the local time zone is from Greenwich Range 43200 to 43200 lt dtsdelta gt Zero if daylight savings time is not in effect at the current time Otherwise the number of minutes to add to the time Range 0 to 255 The current local time is calculated from the UTX Universal Coordinated Time i e GMT time specified in this command plus the lt zone gt offset plus the lt dtsdelta gt offset plus the number of seconds accumulated by the board since the command was executed Page Header Generation AT FPH The AT FPH command is used to enable automatic generation of a FAX page header There are four legal formats for the syntax of this command AT FPH mode left string is left justified AT FPH2modae left middle right AT FPH2modae left right The arguments to this command are mode The mode argument controls generation of the page header A mode of 0 disables page header generation A mode of 1 enables page header generation and the page header is prepended to the FAX page data A mode of 2 enables page header generation and the page header is overlaid on the first few lines of the FAX page data string The string defines the page header itself Only ASCII printable characters are allowed in the string 0x20 through 0x7e Escape sequences that are introduced with the percent 96 character are
183. snadsnaseecdadaaieadtia besdssasSiadanasorsdbiundie dled eosdsanuasy 55 Fano sme or AENT EAEN RT ENERO m 55 Mie aleti aie o 77 PEE A A A T E E E AE A T 56 Parameters far Mandatory SEN OE Ss Le ui sabe otiraa retai oiei nonk ENAS EPA RUM RIO ERRARE Eni kE EN CEA 57 Paramelars Tar CODO DORUM isses iain iie pa ade Go ck aaa E souk Re Ede et Dr Anh Ra KS RA dcr 58 etes a EE e DEANE sins feats CET EET SESS LT 59 ui aue ae cc Tio or Drm 59 Inde CASS AHO C 59 e aue Class SAOUT 60 Hegusst Manufacturer JORDNIOBIL Ls Leere niet rre Ire x vent eor 1X DV ELE res Lr D cr Pet d a eue pea 60 Rogues et du cue E 60 IS T MILI CIE ODE i RE 60 BOBO LOTES aiio uiro quai osten icq opt da Fortune eid UR EE UN ME FEl DaDC oi E UN 61 NIST pom 61 PES St Kall me P X 61 urcEP 71 5 E 62 RU CIEL M 62 RE DI 1 63 SEGUE TEBISIDSEDEL i eoa DH FEEROC E vies eins REEREE E AE E E RARER RRA AAA ARE 63 iniatze Facsimile Pare llle Laus a ese ve E EKERHQEEFREEAMUNEEPNEEREREAMEERER EEE EEA AEO E ET EE Ea aii 63 doom Hecate torii hex lene Uo DeduenE aE at Desa e OPA AE ORC VH EE OR PR EPA 64 LOU Fhase A Negotiation Responsas oce RE irae P Erprt PRI DA DEED MER M REO MEM A EpESN
184. sponses described in this section are applicable when command FCLASS 1 0 as shown in Table 3 1 Mode Commands Command FAA Description Defined Values Command FAE Description Defined Values Command FTS Description Defined Values Result Codes Auto Answer Enable Class 1 0 This command enables or disables fax adaptive answer This command operates identically to the FAE command value Decimal number corresponding to the selected option 0 Disable data fax auto answer mode Default 1 Enable data fax auto answer mode The modem determines the calling type and issues DATA result code 13 if the caller is a data modem or issues FAX result code 15 if the caller is a fax modem Auto Answer Enable Class 1 and 1 0 This command enables or disables fax adaptive answer This command operates identically to the FAA command value Decimal number corresponding to the selected option 0 Disable data fax auto answer mode Default 1 Enable data fax auto answer mode The modem determines the calling type and issues DATA result code 13 if the caller is a data modem or issues FAX result code 15 if the caller is a fax modem After a data not fax connection is achieved indicated by the DATA result code the DTE must issue an ATO command to cause the modem to go on line Transmit Silence This command causes the modem to terminate a transmission and wait for time 10 ms intervals
185. ss 2 1 Syntax Class 2 Syntax FPO FPO T 32 reference 8 4 2 2 The FPO response indicates that the remote station has a document to poll and invites the host to poll it This response is generated in execution of Originate Answer FDT and FDR commands FSP 0 inhibits the FPO response 2 5 1 9 The host may respond to an FPO message with either the begin transmit command AT FDT if it does not wish to poll or the FDR command to indicate willingness to poll the remote station FPOLL FPOLL The Class 2 response is essentially the same as the Class 2 1 response Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 65 Chapter 3 Fax Class 2 Commands Report Remote ID Class 2 1 FTI FCl FPI Syntax FTI lt TSI ID string gt Transmit Station ID Syntax FCI lt CSI ID string gt Called Station ID Syntax FPI lt CIG ID string gt Polling Station ID These responses report the received remote ID string if any They are generated in execution of the Originate Answer FDT and FDR commands The modem reports the characters in the ID string in reversed time order from the order received from the remote station For example if the following ID FIF character string were received hexadecimal values 20 20 20 20 20 31 30 39 38 20 37 36 35 20 34 33 lt 32 gt lt 20 gt lt 31 gt lt 2B gt The result
186. ssions Table 3 T 30 includes digits 0 9 the character and the space character Like the FLID command the modem transmits ID string characters to the remote station in reversed order from the order in the command line FCIG FCIG lt ocal ID string gt 20 character printable ASCII string 20 character string Table 3 T 30 Null String The Class 2 parameter is essentially the same as the Class 2 1 parameter Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 77 Chapter 3 Fax Class 2 Commands Non standard Frame FIF Octet String Class 2 1 FNS Write syntax FNS lt hexadecimal coded octet string gt Values up to 90 octets Default Null String If FNS is not a Null String the modem sends the corresponding non standard facilities frame The type of frame is determined by the type of negotiation frame to be sent NSF sent with DIS NSS sent with DCS NSC sent with DTC The modem only delivers the data the host must determine the content The first octet must be the country code see Recommendation T 35 Class 2 There is no equivalent parameter in Class 2 Indicate Document to Poll Class 2 1 FLP Write syntax FLP lt value gt Values 0 1 Default 0 FLP 0 The host has no document to poll FLP 1 The host has a document ready for polling The modem reports this to the remote station in the DIS frame The modem resets this parameter to 0 after a polled document is sent
187. sters and Result Codes Leased Line Operation n 0 1 or2 0 amp LO The modem is set for standard dial up operation amp L1 The modem is set for leased line operation in originate mode amp L2 The modem is set for leased line operation in answer mode Note For amp L1 and amp L2 there is a 30 second window between power up and the starting of the leased line handshake During this time you can turn off the command if desired Pulse Dial Make to Break Ratio Selection n 0 1 o0r2 0 amp PO 60 40 make to break ratio amp P1 67 33 make to break ratio amp P2 20 pulses per second Note The amp P2 command is available only if the country code is set to Japan Asynchronous Communications Mode n 0 5 6 8 or9 5 amp QO amp Q5 amp Q6 amp Q8 Asynchronous with data buffering Same as WO Error control with data buffering Same as 3 Asynchronous with data buffering Same as NO MNP error control mode If MNP error control is not established the modem falls back according to the setting in S36 V 42 or MNP error control mode If neither error control is established the modem falls back according to the setting in S36 amp Q9 Data Set Ready DSR Control n Oor1 0 amp S0 DSR is always ON amp S1 DSR goes ON only during a connection Loopback Test V 54 Test Commands Values None n 0 1 3 6 The modem can perform selected test and diagnostic functions A test can be run only when the modem is opera
188. such as from 120 to 136 or from 120 to 128 The value 0 is reserved for modem automatic volume control AVC Note The modem will limit the transmit level over the Telco lines regardless of the current VGT setting to that permitted by CFR FCC Rules Part 68 Subpart D VIT lt timer gt Set DTE DCE Inactivity Timer OK if the modem accepts the command ERROR if the parameter is out of range The VIT command sets the modem s initial value for the PC Modem Inactivity Timer The permitted range is displayed by the VIT command The units are in 1 0 seconds The PC can disable the Inactivity Timer by using a value of 0 VIT 0 The Inactivity Timer serves to ensure that the PC does not leave the modem in a state where it is not accessible by voice unaware software The Inactivity Timer is activated when the PC selects the voice fixed rate The timer expires if the flow of data from the PC to the modem stops in both Voice Command mode and Data mode for a specified amount of time When this timer expires the modem switches to Data mode with autobauding By switching to autobauding and Data mode the PC is allowed voice unaware software to recover control of the modem in the event of catastrophic failure that does not result in a modem power down It is recommended that the PC software leave the modem in autobauding and Data mode and use the Inactivity Timer only as needed Leaving the modem in autobauding is an extra measure to preven
189. switches the FCLASS 2 DCE to Service Class 2 fax mode The DCE agrees The DCE starts the fax receive process Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide 8000263C 127 Chapter 4 Voice Commands DTE DCE Interface Rates The table below indicates the anticipated modem to computer interface rates for both the 7 2 bits per sample rate and the 8 bits per sample rate Projected DTE DCE Interface Rates for 7 2 8K Hz Sample Rates Bits per Projected DTE DCE Projected DTE DCE Sample I F Rate 7 2K Hz I F Rate 8K Hz 0 5 4800 9600 1 9600 19200 2 19200 19200 3 38400 38400 4 38400 57600 5 57600 57600 6 57600 115200 7 115200 115200 8 115200 115200 9 115200 115200 10 115200 115200 11 115200 115200 12 115200 Fast 13 Fast Fast Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 128 Chapter 5 Remote Configuration and Country Code Configuration Chapter 5 Remote Configuration and Country Code Configuration Remote Configuration Remote configuration is a network management tool that allows you to configure modems anywhere in your network from one location With password protected remote configuration you can issue AT commands to a remote SocketModem for maintenance or troubleshooting as if you were on site Basic Procedure The following steps are valid regardless of whether the connection is es
190. t parameter An lt sdi gt parameter value of 0 means that long term silence detection is disabled Note that long term silence detection refers to the use of this function to detect the end of a voice receive i e the user stops talking VS lt sds gt VSM Silence Compression in Use VSM Silence Compression Not Used 0 Use VSM silence compression Use default long term setting silence setting and algorithm for long term detection level and algorithm silence detection not 0 Sets long term silence detection setting independent of presence or use of silence detection where lt sds gt 128 nominal level of silence detection sensitivity lt sds gt gt 128 more aggressive level of silence detection sensitivity less sensitive higher noise levels considered to be silence lt sds gt lt 128 less aggressive level of silence detection sensitivity more sensitive lower noise levels considered to be silence The parameter lt sds gt is used by the PC to select greater amounts of modem silence detection activity larger values imply that the PC wants the modem to treat noisier conditions as silence The value entered for lt sds gt has no actual unit of measure The modem may limit silence detection sensitivity to a more narrow range e g from 120 to 136 A setting of 0 has no meaning The parameter lt sdi gt sets the required period of silence before the modem can report silence detected either with the Pres
191. t procedure interrupt 6 PRI EOP All done procedure interrupt Call Termination with Status Class 2 1 FHS Syntax FHS lt hangup status code gt FHS indicates that the call has been terminated The hang up cause is reported and stored in the FHS parameter for later inspection The lt hsc gt values are hexadecimal codes as described in Table 3 4 FHS lt hsc gt is a possible intermediate result code to any host action command described in Action Commands section It is always followed by the OK result code Class 2 FHNG Syntax FHNG lt hangup status code gt Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 69 Chapter 3 Fax Class 2 Commands The Class 2 response is the same as the Class 2 1 response except that the hang up cause is stored in the FAXERR parameter and the hsc values are decimal codes as described in Table 3 4 Table 3 4 Hang up Status Codes Class 2 1 Class 2 Cause 00 0F 0 9 Call placement and termination 00 0 Normal and proper end of connection 01 1 Ring detect without successful handshake 02 2 Call aborted from FKS FK or CAN 03 3 No Loop Current 04 Ringback detected no answer timeout 05 Ringback detected answer without CED 10 1F 10 19 Transmit Phase A amp miscellaneous errors 10 10 Unspecified Phase A error 11 11 No A
192. t confusion from voice unaware software accessing the modem in Voice mode at a fixed PC modem interface rate You can use the H command to switch to autobauding and Data mode automatically In Voice mode the modem does not allow the auto answer feature since this feature does not allow the PC to set the modem in Voice mode before answering the phone Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide 8000263C 110 Command Result Codes Description Chapter 4 Voice Commands VLS lt label gt Select Analog Source Destination OK if command accepted ERROR if the lt label gt parameter is out of range or if the modem cannot service the lt label gt parameter requested VLS causes the modem to select one or more source and destination devices for the analog data to be transmitted The parameter lt label gt identifies each of the supported analog source destination hardware devices Codes called primitives are provided to describe which voice I O device s are components in a possible hardware configuration The codes are grouped to help define and label 16 common hardware configurations Each code except L and T is followed by an ASCII 0 code 20 hex Two codes can be concatenated to define a possible analog source destination hardware configuration Code Description L Local phone no number code T Telco line no number code MO Internal microphone M1 External microphone S0 Internal speaker
193. tablished by the local or the remote Multi Tech modem 1 Establish a data connection with a remote SocketModem 2 Sendthree remote configuration escape characters followed by AT and the setup password and press Enter Example ATMTSMODEM You have four tries to enter the correct password before being disconnected If the password is correct the remote modem responds with OK 3 You can now send AT commands to configure the remote modem 4 When you have finished configuring the remote modem save the new configuration by typing AT amp WO Press Enter 5 Type ATO Press Enter to exit remote configuration You can now break the connection Setup Multi Tech modems are shipped with a default setup password MTSMODEM Because anyone who has the User Guide knows the default setup password you should change the password and possibly also the remote configuration escape character pius the Setup Password Open a data communications program such as HyperTerminal 2 In the terminal window type ATZSMTSMODEM or ATZSyyyyyy if you have replaced the MTSMODEM password with yyyyyy and press Enter The modem responds with OK if the setup password is correct and ERROR if it is wrong 3 To change the password type AT S yyyyyy where yyyyyy stands for the password and press Enter The password can include any keyboard character and can be up to eight characters long The modem responds with OK 4 The new password is saved automatically You can no
194. tch detection Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 89 Chapter 3 Fax Class 2 Commands Page Width Format Conversion FWDFC Class 2 0 2 1 Not Applicable Class 2 Write syntax FWDFC lt value gt Valid values 0 1 2 Default value 0 This parameter determines the modem s response to a mismatch between the page width negotiated for the facsimile session reported by the FCS WD subparameter and the Phase C data desired by the host indicated by the optional FDT WD subparameter or the FIS WD subparameter for FDR operation A mismatch would require clipping or scaling a wider format to a narrower one FWDFC 0 Disables mismatch checking The host must check the FCS WD subparameter and transfer matching data FWDFC 1 Enables mismatch checking An implied FKS command is executed on mismatch detection FWDFC 2 Enables mismatch checking with page width conversion in the modem Fax Flow Control FLO Syntax FLO lt value gt Valid values 0 1 2 Default value 1 The FLO command allows the host to select and identify the types of flow control provided and used A TR29 standard modem can support XON XOFF flow control XON is the ASCII lt DC1 gt character 11h XOFF is the ASCII DC3 character 13h The modem may provide ITU T V 24 circuits 106 CTS and 133 RTS for flow control FLO 0 No fax flow control FLO 1 Software fax flow control XON XOFF flow control in ei
195. than 32 disable backspace Sets the time the modem waits after it goes off hook before it begins to dial the telephone number Sets the time the modem waits for a carrier signal before aborting a call Also sets the wait for silence time for the dial modifier Sets the length of a pause caused by a comma character in a dialing command Sets ASCII code for remote configuration escape character S9z0 disables remote configuration Sets how long a carrier signal must be lost before the modem disconnects Sets spacing and duration of dialing tones 0 disables 1 255 enables V 34 modulation Sets the length of time that the modem waits before disconnecting when no data is sent or received A value of zero disables the timer See also the T command 0 disables 1 enables the V 25 calling tone which allows remote data fax voice discrimination Specifies the action to take in the event of a negotiation failure when error control is selected See S48 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 28 Chapter 1 AT Commands S Registers and Result Codes 37 decimal 0 19 0 Sets the maximum V 34 upstream speed at which the modem attempts to connect 0 maximum speed 1 reserved 2 1200 75 bps 3 300 bps 4 reserved 5 1200 bps 6 2400 bps 7 4800 bps 8 7200 bps 9 9600 bps 10 12000 bps 11 14400 bps 12 16800 bps 13 19200 bps 14 21600 bps 15 24000 bps 16
196. that the voice fax data modem may issue in response to those commands The V commands and responses provide control of the following services e Recording and playback of digitized voice e Generation and detection of DTMF and other tones e Switching between voice fax and data modes e Control related functions The Voice mode has three states which correspond to the direction of voice data flow Voice command state event reports only no data transfers Voice transmit state digitized half duplex voice data transfers from PC to modem Voice receive state digitized half duplex voice data transfers from modem to PC The modem supports three levels of voice service Service Levels A B and C Service Level A provides the lowest level of services Service level A performs operations and detects events as follows Voice transmit Voice receive and DTMF generation and Single tone generation The following events Result Codes are reported 3 4 5 6 9 10 18 19 23 25 Service Level B provides an optionally greater amount of services providing DTMF and facsimile calling tone detection during voice transmits in addition to Service Level A Service Level B provides event reporting similar to Service Level A but with added event reporting states e g fax calling in transmit state in addition to reporting in command state Service Level C provides the highest service level with the addition of facsimile calling tone and Busy dete
197. the data corruption is not a problem on the communications link the last octet sent will never be lost due to data overrun i e that the newer octets always overwrite previous octets in the communications input buffer a common UART design feature Several PC processes can cause serial input channel neglect for longer than the Protocol time between asynchronous characters typically less than 521 microseconds and data loss can occur If a character is lost in the received data the playback of the voice data may be impaired or lost If a character is lost in the final result code the connection may fail The Packet protocol permits recovery from such data loss Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 119 Chapter 4 Voice Commands Command VPR lt rate gt Select DTE DCE Interface Rate Turn Off Autobaud Values 0 1 2 3 4 5 6 7 8 Result Codes OK if the modem accepts the command ERROR if the lt rate gt value is out of range Description The VPR command causes the modem to select between various fixed modem to PC interface rates and autobauding The selected fixed interface rate stays in effect until the modem selects another interface rate or autobauding or until the modem returns to autobauding on the expiration of the Inactivity Timer The newly selected rate takes effect after the modem returns the OK result code VPR 0 select autobauding VPR 1 select 2400 bps VPR 2 select 48
198. ther direction FLO 2 Hardware fax flow control ITU T circuit 133 RTS is used for flow control of the modem by the host Circuit 106 CTS is used for flow control of the host by the modem If circuits 106 and 133 are not being used for flow control FLO 2 then circuit 106 drops when an XOFF is sent and goes high when an XON is sent The conductor used for circuit 133 normally reverts to use as circuit 105 RTS when not being used for flow control Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 90 Chapter 3 Fax Class 2 Commands Set Current Time and Date AT FTD The AT FTD command is used to set the current date and time The current time and date will be tracked automatically by the modem once the time and date are set However these boards do not have a real time clock So the accuracy of the time and date is not guaranteed It is recommended that the current time and date be set before each FAX transmit session The syntax of the command is AT FTD lt year gt month hour minute second zone lt dtsdelta gt The arguments to this command are year The current year UTC zone Range 1970 to 65535 month The current month number UTC zone Range 1 to 12 January is 1 day The current day of the month Range 1 to 31 hour The current hour in military time UTC zone Range 0 to 23 minute The current minute UTC zone Range 0 to 59
199. timeout the DCE will only go on hook Reporting Current or Selected Values Command FIT Response FIT time action Example FIT 0 0 For the default settings Reporting Supported Range of Parameter Values Command FIT Response FIT time range action range Example FIT 0 255 0 1 Table 3 3 Inactivity Timer Start and Stop Events On line state Start timer event Stop timer event Waiting for a command modem sends final result code DTE sends AT or at Waiting for transmit data modem sends CONNECT after FTM or DTE sends data FTH command Waiting for transmit data modem sends lt XON or sets CTS ON DTE sends data Waiting to deliver received data modem sends XOFF after FRM or FRH DTE sends lt XON command Waiting to deliver received data DTE sets V 24 Ckt 133 OFF after FRM or DTE sets V 24 Ckt 133 FRH command ON Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 42 Command FPR Description Syntax Defined Values Chapter 2 Fax Class 1 and 1 0 Commands Fixed DTE Rate This numeric extended format parameter specifies the data rate at which the modem will accept commands during on line operation It may be used to select operation at rates at which the modem is not capable of automatically detecting the data rate being used by the DTE Specifying a value of 0 disables the function and allows operation
200. ting in non error correction mode normal or direct mode For tests 3 and 6 a connection between the two modems must be established To terminate a test in progress the escape sequence AT must be entered amp TO Stops any test in progress amp T1 Starts a local analog loopback V 54 Loop 3 test If a connection exists when this command is issued the modem hangs up When the test starts a CONNECT message is displayed Starts local digital loopback V 54 Loop 2 test If no connection exists ERROR is returned Initiates a remote digital loopback V 54 Loop 2 test without self test If no connection exists ERROR is returned amp T3 amp T6 Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 13 Command Values Description Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Description amp V amp Wn amp Zy x Bn Chapter 1 AT Commands S Registers and Result Codes Display Current Settings N A Displays the active modem settings Store Current Configuration n Oor1 1 amp WO Stores current modem settings in non volatile memory and causes them to be loaded at power on or following the ATZ command instead of the factory defaults See amp F command Clears user default settings from non volatile memory and causes the factory defaults to
201. to the DTE and specifies the minimum ring cadence that will be reported The report format is one line per silence period and one line per ring period The length of the silence period is in the form DROF number in units of 100 ms lt CR gt lt LFs gt and the length of the ring is in the form DRON number in units of 100 ms lt CR gt lt LF gt The modem may produce a Ring event code after the DRON message if enabled by the y parameter The y parameter must be set to a value equal to or smaller than the expected ring cadence in order to pass the report to the DTE VDR 0 N A Disables Distinctive Ring cadence reporting VDR 1 0 Enables Distinctive Ring cadence reporting Other call progress result codes including RING are reported as normal VDR 1 gt 0 Enables Distinctive Ring cadence reporting The RING result code is reported after the falling edge of the ring pulse i e after the DRON report VDR Displays the allowed values VDR Displays the current value Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 18 Command Values Default CBAn Description Command Values Default CBDn Description Command Values Default CBF Description Command Values Default CBFR Description Command Values Default CBin Description Command Values Defaults CBNy x Description Command Values Default CBPn
202. to the selected option For modem decode of lt DLE gt lt SUB gt the defined range are 0 DLE DLE or discard default and only 1 DLE lt DLE gt not supported For modem encoding of 1 0 lt 1 0 gt the defined values are 0 DLE DLE lt DLE gt lt DLE gt default and only 1 DLE SUB not supported Reporting Current or Selected Values Command FDD Response FDD value Example FDD 0 For the default setting Reporting Supported Range of Parameter Values Command FIT Description Defined Values Command FDD Response FDD value range Example FDD 0 DTE Inactivity Timeout This command specifies a DTE inactivity timeout value that allows the modem to break away from an unsuccessful connection attempt at any stage of a facsimile transfer The DTE inactivity timer operates only while the modem is off hook lt time The lt time parameter indicates the DTE inactivity timeout in seconds The value of 0 indicates that timeout is disabled default The required timeout range is 1 to 255 seconds The inactivity timer starts when the modem has taken some action that requires DTE response If the DTE does respond the modem resets the inactivity timer Inactivity timer related events are listed in Table 3 3 lt action The lt action parameter has two meanings 0 Upon timeout the modem will go on hook executing an implied ATH command then reset to FCLASS 0 1 Upon
203. ts a receive buffer overflow condition it stops receiving from the remote until there is room in the receive buffer The modem informs the DTE of the buffer overflow after it sends to the DTE the last character that was stored in the buffer before the overflow occurred If the modem receives any character from the DTE after the FRM command except flow control characters if software flow control is in effect or if the modem detects a high to low transition of the DTR signal while amp D1 is in effect it sends lt DLE gt lt ETX gt to the DTE generates the OK result code and returns to command mode The receive buffer is cleared and all data received from the remote is discarded If loss of DTR is detected while amp D2 is in effect the modem goes on hook sends lt DLE gt lt ETX gt followed by OK result code to the DTE and returns to command mode If the modem detects a DTR drop while amp D3 is in effect the modem performs a warm reset Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 36 Chapter 2 Fax Class 1 and 1 0 Commands Commands and Parameters Mode Entry Commands FCLASS 1 Select Facsimile Class 1 Mode FCLASS 1 selects the Fax Class 1 Mode The Fax Class 1 Mode commands and responses described in this section are applicable when command FCLASS 1 as shown in Table 3 1 FCLASS 1 0 Select Facsimile Class 1 0 Mode FCLASS 1 0 selects the Fax Class 1 0 The Fax Class 1 0 Mode commands and re
204. uction This chapter summarizes the fax Service Class 2 and Service Class 2 0 2 1 command sets as implemented in Multi Tech Systems Inc modems The Service Class 2 0 command set applies to facsimile communications at speeds up to 14 400 bits per second bps The Service Class 2 1 command set is a modification of the Class 2 0 command set for facsimile communications at V 34 speeds up to 33 600 bits per second bps as documented in ITU T T 32 Amendment 1 Because the two command sets differ only in subparameter values for a few Class 2 1 commands they are treated here as a single Class 2 1 command set with differences noted as appropriate The Multi Tech implementation of Class 2 1 follows ITU T Recommendation T 32 as amended except for a few subparameter values Again differences are noted as appropriate This Chapter also summarizes the Multi Tech implementation of the Service Class 2 command set which was based on EIA proposed standard TIA 592 August 1990 The complete Multi Tech Class 2 Developer s Kit can be downloaded from http www multitech com DOCGUMENT S manuals 82006502 pdf EIA TIA documents can be purchased from Global Engineering Documents at http global ihs com Please note that the Class 2 and Class 2 0 commands though similar in outline are sometimes quite different in detail Class 2 is a proposed early version of Class 2 0 that was never approved but was widely implemented by modem manufacturers As a result a
205. uest with 10 second timeout PMHT 2 Grant MOH request with 20 second timeout PMHT 3 Grant MOH request with 30 second timeout PMHT 4 Grant MOH request with 40 second timeout PMHT 5 Grant MOH request with 1 minute timeout PMHT 6 Grant MOH request with 2 minute timeout PMHT 7 Grant MOH request with 3 minute timeout PMHT 8 Grant MOH request with 4 minute timeout PMHT 9 Grant MOH request with 6 minute timeout PMHT 10 Grant MOH request with 8 minute timeout PMHT 11 Grant MOH request with 12 minute timeout PMHT 12 Grant MOH request with 16 minute timeout PMHT 13 Grant MOH request with indefinite timeout PMHT Displays the allowed values PMHT Displays the current value Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 24 Command Values Default Description Command Values Default Description Command Values Default Description PQC n VCID n VDR x y Chapter 1 AT Commands S Registers and Result Codes Quick Connect Control n 0 1 2 or3 3 Controls V 92 shortened Phase 1 and Phase 2 startup procedures Quick Connect When line conditions are stable quick connect results in shortened connect times however significant fluctuation in line conditions from call to call can cause longer connect times thus it may be advisable to disable quick connect PQC 0 Enables Short Phase 1 and Short Phase 2 Quick Connect PQC 1 Enables Short Phase 1 PQC 2 Enables
206. umed End of Message Quiet or Presumed Hang Up Silence event reports A value of 0 disables modem silence detection in which case the modem will not report the Presumed End of Message Quiet or Presumed Hang Up Silence event reports Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 113 Command Values Default Result Codes Description Chapter 4 Voice Commands VSM lt cml gt lt vsr gt lt scs gt lt sel gt Select Voice Compression Method see individual parameter descriptions see individual parameter descriptions OK if the modem accepts the command ERROR if one or more of the following apply 1 the any parameter entered is out of range or 2 any of the four parameters are missing from the command string If an error occurs the modem retains the previous lt sds gt and lt sdi gt parameter values The VSM command sets the modem to a specified voice compression method silence compression sensitivity and voice sampling rate The modem can maintain a different event detection capability for each compression method This command allows the PC to set the amount of silence compression appropriate to a particular situation or application For example you may want to record your welcome message with the lowest amount of silence removal with the goal of reducing distortion meanwhile recording other messages with a more assertive silence removal to limit disk space used for
207. ve Ring cadence reporting Other call progress result codes including RING are reported as normal VDR 1 gt 0 Enables Distinctive Ring cadence reporting RING result code is reported after falling edge of the ring pulse after the DRON report VDR Displays the allowed values VDR Displays the current value Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 25 Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Description Command Values Default Description Command Values Defaults Description Command Values Default Description Command Values Default Description CBAn CBDn CBF CBFR ZCBIn CBNy x CBPn CBRy Chapter 1 AT Commands S Registers and Result Codes Callback Attempts n 1 255 4 Sets the number of callback attempts that are allowed after passwords have been exchanged between modems Callback Delay n 0 255 15 Sets the length of time in seconds that the modem waits before calling back the remote modem Callback Failed Attempts Display N A N A Requests the number of failed callback passwords since reset or power up This number can be stored to nonvolatile memory using the amp W command Callback Failed Attempts Reset N A N A Resets the number of failed ca
208. version 4FFC FLNFC Page length format conversion FVRFC Vertical resolution format conversion FWDFC Page width format conversion FMS FMINSP Minimum Phase C speed FND Non standard message data indication FNS Non standard frame FIF FRQ Receive quality thresholds FRY FCTCRTY CTC ECM retry value FAXERR Fax error value FRBOR Set receive Bit Order to Rockwell Lucent order FV Display prefix on parameter queries Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 58 Chapter 3 Fax Class 2 Commands Identification Commands Service Class Indication A MultiModem modem will report its Service Class capabilities both the current setting and the range of services available This is provided by the FCLASS parameter Currently defined values for the FCLASS parameter are Parameter Service Class 0 Data modem 1 Fax Service Class 1 TIA 578 ITU T 31 1 0 Fax Service Class 1 0 ITU T T 31 Amendment 1 2 Fax Service Class 2 EIA 29 2 2 0 Fax Service Class 2 0 ITU T T 32 2 1 Fax Service Class 2 1 ITU T T 32 Amendment 1 3 7 Reserved not supported 8 Voice modem 9 255 Reserved not supported None Not supported The FCLASS factory default setting is FCLASS 0 When FCLASS is set to other than 0 and a call is made but the call fails or the modem is disconnected the FCLASS value returns to the default setting FC
209. w either enter more AT commands or exit the data communications program The next time you remotely configure the modem you must use the new setup password Note You can only change the setup password locally you cannot do it remotely Also passwords are case sensitive The next time you enter the password it must be in the same case as you set it up Changing the Remote Escape Character To further improve security you can change a remote modem s remote configuration escape character The remote configuration escape character is stored in register S9 The factory default is 37 which is the ASCII code for the percent character 96 Setting S9 to 0 zero disables remote configuration entirely Caution If you do this remotely you won t be able to change it back remotely 1 Establish a remote configuration link with the remote modem as described in Basic Procedure Note This command can be executed locally as well as remotely 2 Type ATS9zn where n is the ASCII code for the new remote configuration escape character and press Enter 3 Save the new value by typing AT amp W and pressing Enter 4 Type ATO and press Enter to exit remote configuration Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide 8000263C 129 Chapter 5 Remote Configuration and Country Code Configuration Country Code Configuration Different countries have different requirements for how modems must function Therefore before you use th
210. xx Reference Guide S000263C 97 Chapter 3 Fax Class 2 Commands Originate and send a two page facsimile with V 34 half duplex Class 2 1 Optional T 30 frames are omitted FNR 1 1 FIS and FCS subparameters other than BR and EC are not shown Host Commands AT FCLASS 2 1 AT FIS B 3 ATD lt dial string gt AT FDT Ist page data gt lt DLE gt lt mps gt AT FDT lt 2nd page data gt lt DLE gt lt eop gt Modem Responses FCS 9 1 CONNECT CONNECT FHS 00 OK Local Modem Action Set for Rec V 34 Annex A T 30 Annex C T 30 or Annex F T 30 off hook dial send CNG detect ANSam send CM get JM send CJ negotiate Rec V 34 begin control chan get DIS send DCS get CFR switch to primary chan send page FCD switch to control chan send MPS get MCF switch to primary chan send page 2 FCD switch to control chan send EOP get MCF send DCN hang up Remote Station Action detect ringing answer detect CNG send ANSam get CM send JM get CJ negotiate Rec V 34 begin control chan send DIS get DCS send CFR switch to primary chan get page data switch to control chan get MPS send MCF switch to primary chan get page 2 FCD switch to control chan get EOP send MCF get DCN hang up Chan channel Rec T 30 selected with JM signal from remote terminal the remote indicated 28 800 bit s ability in this exam
211. y FEA FREL Phase C Received EOL alignment optional parameter in Class 2 FLI FLID Local fax station ID string TSI or CSI FPl FCIG Local fax station polling ID string CIG FSP FSPL Request to poll FLP FLPL Indicate document to poll FPS FPTS Page transfer status FFD File diagnostic message FHS Call termination status FIE Procedure interrupt enable FIT host inactivity timer FNR Negotiation message reporting control FPA Selective polling address FSA Subaddress FPP Packet protocol control FPW Password sending or polling FLO FLO Set local flow control FPR Set local port rate FMI FMFR Request modem manufacturer FMM FMDL Request modem model FMR FREV Request modem revision Depends on the capability to receive set by FCR Multi Tech Systems Inc SocketModem MT5634SMIxx Reference Guide S000263C 57 Parameters for Optional Services Chapter 3 Fax Class 2 Commands Class 2 1 Class2 Optional parameter description FAA FAA Adaptive answer mode FAP Addressing amp polling capabilities FBADLIN _ Number of consecutive bad lines for a bad page 4FBADMUL Error threshold multiplier 4FBS FBUF Buffer size read only FBU FBUG HDLC frame reporting enable FCR FCR Capability to receive FCT FPHCTO host Phase C timeout FDFFC Data compression format con

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