Home

Lucent Technologies Host-Based Controller Modem AT Modem User Manual

1. 1F cct108isOfflnhibitsDial 20 jeocti BtumedOff J y y y 28 NoNumberProvied Line Interface 1 29 J BlakistedNumer J X X Version 1 0 Lucent Technologies Inc 27 Host Based Modem Data Addendum AT Command Set June 15 1998 Test and Debug AT Commands continued 2A CallAttemptsLimitExceeded X ExtensionPhoneOffHook 2C CalSetupFailTimerBxpired 2D IncomingCallDetected LoopCumentlnerupted NoDalToe i J VoiceDetected O D Signal Converter TrainingFailed RetrainFailed RetrainAttemptCountExceeded GstnCleardownReceived J 1 1 1 O 42 FaxDetected 47 IntrusiveSelffestinitiated O 50 AnyKeyAbort Call Control X DteHangupCommand MISERE VM Wis 52 DteResetCommand Error Control 5B _ NoErrorControlEstablished 1 1 1 5C ProtocolViolation O o h amp A y 5D n400exceeded X 5E_ Negotiationfailed 5F DisconnectFrameReceived 1 o y O SabmeFrameReceived 0 LossOfSynchronization DataCompression 6 28 Lucent Technologies Inc Version 1 0 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands Reference S Registers S registers generally affect how the AT commands perform Contents of the registers can be displayed or modified when the modem is in command mode To displ
2. AT9 6T19 0 couniry code in HEX refer to Table 2 Verify with the ATI9 command which displays the country name that the right country has been configured Table 12 The Country Codes Country Country Code in HEX Denmark 3 Germany 6 Hid cx e 3 New Zealand 9 Norway A Spin Swden Z J C Switzerland D Japan 10 Indonesia Canada 1C Vietnam 1F Hungar Turke 23 South Africa Version 1 0 Lucent Technologies Inc Host Based Controller Modem AT Command Set 63 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands for Homologation Testing and Debugging continued Modifying Homologation Parameters Once the modem is configured for a country the homologation parameters shown in Table 3 can be temporarily altered for that country with the following AT command AT9 6T21 par param value where par and param value should be entered HEX For example AT96T21 7 28 sets the call progress threshold to 40 dB 22 par displays the current value of the parameter in HEX The par parameter descriptions are shown in Table 3 The country specific default values param value are shown in Table 4 Note If a parameter is changed with the AT T21 command the ATZ and AT amp F commands do not reset the homologation parameters to the default values i e the changes made are not reset until the power is turned off 64 Lucent Technologies
3. Notes for Speakerphone Examples 1 If the user decides to pick up his local parallel phone while in the middle of a speakerphone call the DCE will sense the transition and send the application a lt DLE gt H sequence The application which should always be screening for DLE shielded codes in the background when the modem is in the voice mode can then respond to the lt DLE gt H for example by resetting speakerphone buttons or doing whatever else needs to be done with the speakerphone interface 2 DLE shielded codes that the modem will send to the application while in speakerphone mode are Command Description DLE c FAX calling tone detect DLE e Data calling tone detect DLE h Local phone went on hook hung up DLE H Local phone went off hook picked up 3 When the user is in the middle of a speakerphone call call waiting hold operation can be initiated when the user hears the call waiting signal through the speaker Call waiting entails the following communication between the application and the modem Command Description ATD Put the current call on hold and answer the new incoming call OK DCE responds Original call is on hold and the speakerphone user is connected to the second call To terminate the second call and return to the first the application should again send the modem the ATD command ATD Terminate the second call and return to the original call OK DCE responds Second call is terminated a
4. W2 Same as Wl Result Codes OK n 0 1 ERROR Otherwise Xn XON XOFF Pass Through MO Modem process XON XOFF flow control characters locally default W1 Modem passes XON XOFF flow control characters Result Codes OK n 0 1 ERROR Otherwise Cn Data Calling Tone Data Calling Tone is a tone of certain frequency and cadence as specified in V 25 which allows remote Data FAX Voice discrimination The frequency is 1300 Hz with a cadence of 5 s on and 2 s off CO Disabled default C1 Enabled Result Codes OK n 0 1 ERROR Otherwise V90 n command to enable disable V 90 and change downstream rate V90 0 will disable V 90 V90 1 will enable V 90 Auto Rate default value V90 X controls the downstream rate V90 Shows the current value V90 Shows the range 0 21 See next page for the values of n Version 1 0 Lucent Technologies Inc 21 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Command Reference continued The table below shows the possible values AT AT V90 X 1 x Downstream Rate 0 1 1 90 disabled pt Auto Rate default s Saas kbit s HR 28388 kbit s 4 30666 kbit s 6 33333 kbit s 34666 kbit s FN 36000 kbit s 37333 kbit s 42666 kbit s 16 46666 kbit s 19 50666 kbit s B View Numbers in Blacklist If blacklisting is in effect this command displays the numbers for which the last call attempted in
5. default value from 80 to 85 ATS11 080 OK 21 5 55 OK 21 6 55 OK ATZ OK ATS11 085 OK If you do not want to change both 5 and par 6 set par 5 to the new default DTMF duration if you are increasing the default value from the current value otherwise set par 6 to the new default DTMF duration The following two example show how to set one parameter 1 OK 86 This example shows how to set the current default value of S11 from 80 to 85 ATS11 080 OK 21 5 55 OK ATZ OK ATS11 085 OK This example shows how to set the current default value of S11 from 85 to 80 ATS11 085 OK AT96T21 6 50 OK ATZ OK ATS11 080 Lucent Technologies Inc Version 1 0 or additional information contact your Microelectronics Group Account Manager or the following INTERNET http www lucent com micro U S A Microelectronics Group Lucent Technologies Inc 555 Union Boulevard Room 30L 15P BA Allentown PA 18103 1 800 372 2447 FAX 610 712 4106 In CANADA 1 800 553 2448 FAX 610 712 4106 e mail docmaster micro lucent com ASIA PACIFIC Microelectronics Group Lucent Technologies Singapore Pte Ltd 77 Science Park Drive 03 18 Cintech Ill Singapore 118256 Tel 65 778 8833 FAX 65 777 7495 JAPAN Microelectronics Group Lucent Technologies Japan Ltd 7 18 Higashi Gotanda 2 chome Shinagawa ku Tokyo 141 Japan Tel 81 3 5421 1600 FAX 81 3 5421 1700 or data request
6. issues OK result code and remains connected amp D2 Ifthe signal is not detected while in on line data mode the modem disconnects default amp D3 Reset modem on the on to off DTR transition Result Codes OK n 0 1 2 3 ERROR Otherwise amp Fn Load Factory Settings This command loads the configuration stored and programmed at the factory This operation replaces all of the command options and the S register settings in the active configuration with factory default values Note In voice mode AT FCLASS 8 if the AT amp F command is placed on the same line as other commands the command line is ignored To load factory seitings in voice mode issue AT amp F by itself Result Codes OK n 0 ERROR Otherwise amp Gn V 22bis Guard Tone Control This command determines which guard tone if any to transmit while transmitting in the high band answer mode This command is only used in V 22 and V 22bis mode This option is not used in North America and is for international use only amp G0 Guard tone disabled default amp G1 Sets guard tone to 550 Hz amp G2 Sets guard tone to 1800 Hz Result Codes OK 0 1 2 ERROR Otherwise amp Jn Auxiliary Relay option amp JO The auxiliary relay is never closed Default amp J1 NOT SUPPORTED Result Codes OK n 0 ERROR Otherwise 14 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Command Reference con
7. 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Voice Commands Reference continued AT VRA lt interval gt Ringback Goes Away Timer The modem uses the ringback goes away timer when originating a call This command sets this timer to the amount of time the modem shall wait between ringbacks before assuming that the remote station has gone off hook AT VRA Returns the current value AT VRA Returns the range of supported values AT VRN lt interval gt Ringback Never Appeared Timer The modem uses the ringback never appeared timer when originating a call The AT VRN command sets this timer to the amount of time that the modem shall spend looking for an initial ringback If ringback is not detected within this interval the modem shall assume that the remote station has gone off hook AT VRN Returns the current value AT VRN Returns the supported values AT VPR lt rate gt Select DTE DCE Interface Rate The AT VPR command returns an OK for any rate but has no action Events Reported to the DTE The modem will return OK when going off hook in voice mode FCLASS 8 After answering in voice mode the modem may send any of the following DLE shielded event codes to the DTE as appropriate lt DLE gt Shielded Codes Sent from DCE to DTE Code Character Description 0 9 A D DTMF tones Answer tone Busy tone Fax calling tone Dial tone Data calling tone Local phone on hook Local ph
8. 2 K4 Send break to remote modem in sequence with data K5 Send break to remote modem in sequence with data Same as 4 Default The third case is where there a break is received from a remote modem during a connection KO Clear data buffers and send break to the DTE K1 Clear data buffers and send break to the DTE Same as 0 K2 Send a break immediately to DTE K3 Send a break immediately to DTE Same as 2 K4 Send a break in sequence with received data to DTE K5 Send a break in sequence with received data to DTE Same as 4 Default Result Codes OK 0 1 2 3 4 5 ERROR Otherwise Nn Error Control Mode Selection This command determines the type of error control used by the modem when sending or receiving data WO Buffer mode No error control same as amp O6 N1 Direct mode W2 MNP or disconnect mode The modem attempts to connect using MNP 2 4 error control procedures If this fails the modem disconnects This is also known as MNP reliable mode Version 1 0 Lucent Technologies Inc 19 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Command Reference continued N3 V 42 MNP or buffer default The modem attempts to connect in V 42 error control mode If this fails the modem attempts to connect in MNP mode If this fails the modem connects in buffer mode and continues operation This is also known as V 42 MNP auto reliable mode same as am
9. Technologies Inc 9 ONOARAN Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Command Reference continued 20 Reason for call ending only valid after call ends 0 Local modem command ATH drop 1 Remote modem cleardown loss of signal 2 No answer busy etc 3 Training failure V 90 K56flex or V 34 4 Protocol failure if required by N4 for example 21 For PCM connection only a hexadecimal 6 bit pattern of T1 frames with robbed bit signaling 22 For PCM connection only the downstream digital loss 23 For K56flex connection only the V 8bis info sent by the server Meaning is defined at the server and by convention Example above is from a recent Ascend MAX in u Law Ln Monitor Speaker Volume This command sets speaker volume to low medium or high LO Selects low volume L1 Selects low volume L2 Selects medium volume default L3 Selects high volume Result Codes OK n 0 1 2 3 ERROR Otherwise Mn Monitor Speaker Mode This command turns the speaker on or off MO The speaker is off M1 The speaker is on until the modem detects the carrier signal default M2 The speaker is always on when modem is off hook M3 The speaker is on until the carrier is detected except while dialing Result Codes OK n20 1 2 3 ERROR Otherwise Nn Modulation Handshake This command controls whether or not the local modem performs a negotiated handshake at connection time with the remote mod
10. Typical responses FCLASS 000 if in data mode 001 if in FAX class 1 008 if in voice mode and 080 if in Voice View mode FCLASS Service Class Capabilities This command causes the modem to display the classes it supports Typical responses FCLASS 0 1 8 80 FCLASS n Service Class Selection This command sets the modem for class n operation where n is either a 0 or 1 Parameters 0 1 8 80 Default 0 Command options FCLASS 20 Select data mode FCLASS 21 Select Facsimile Class 1 FCLASS 28 Select voice mode FLCASS 80 Select VoiceView mode FTS lt n gt Transmission Silence This command causes the modem to stop transmitting data and pause for 10 n ms At the end of this period the modem then responds OK You can specify any number from 0 through 255 as the value of n for example a value of 5 specifies a period of 50 ms n 0 255 10 ms intervals FRS lt n gt Receive Silence This command causes the modem to listen and wait for a 10 n ms period of silence on the line At the end of this period the modem then responds OK You can specify any number from 0 through 255 as the value of n for example a value of 5 specifies a period of 50 ms n 0 255 10 ms intervals 37 Version 1 0 Lucent Technologies Inc Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Fax Commands Reference continued FTM lt m gt Transmit FAX Data with m Carrier This command cause
11. at 1200 bits s B1 Selects Bell 212A when the modem is at 1200 bits s default B2 Unselects V23 reverse channel same as B3 B3 Unselects V23 reverse channel same as B2 B15 Selects V 21 when the modem is at 300 bits s B16 Selects Bell 103J when the modem is at 300 bits s default Result Codes OK n 0 1 2 3 15 16 ERROR Otherwise Cn Carrier Control The modem will accept the C1 command without error in order to assure backward compatibility with communications software that issues the C1 command However this modem does not support the CO command The C0 command may instruct some other modems not to send carrier i e it puts them in a receive only mode Co Transmit carrier always off C1 Normal transmit carrier switching Result Codes OK n 1 ERROR Otherwise 6 Version 1 0 Lucent Technologies Inc Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Command Reference continued Dn Dial This command instructs the modem to begin the dialing sequence The dial string n including modifiers and the telephone number is entered after the ATD command A dial string can be up to 60 characters long Any digit or symbol 0 9 A B C D may be dialed as touch tone digits Characters such as spaces hyphens and parentheses do not count they are ignored by the modem and may be included in the dial string to enhance readability The following may be used as dial string modifiers L R
12. call progress feature W dial modifier in the dial string will override the value in register S6 This operation however may be affected by some ATX options according to country restrictions Range 2 65 Default 2 Units seconds S7 Connection Completion Time Out This register sets the time in seconds that the modem must wait before hanging up because carrier is not detected The timer is started when the modem finishes dialing originate or goes off hook answer In originate mode the timer is reset upon detection of an answer tone if allowed by country restriction The timer also specifies the wait for silence time for the dial modifier in seconds S7 is not associated with the W dial modifier Range 1 255 Default 50 Units seconds 30 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Commands Reference S Registers continued S8 Comma Dial Modifier Time This register sets the time in seconds that the modem must pause when it encounters a comma in the dial command string Range 0 65 Default 2 Units seconds S10 Automatic Disconnect Delay This register sets the length of time in tenths of a second that the modem waits before hanging up after a loss of carrier This allows for a temporary carrier loss without causing the local modem to disconnect The actual interval the modem waits before disconnecting is the value in register S10 Rang
13. f o mp AT VSD lt sds sdi gt Silence Detection QUIET and SILENCE This command sets both the silence detection sensitivity lt sds gt and silence detection interval lt sdi gt m Larger values of sds indicate that the modem is to treat noisier line conditions as silence lt sds gt 128 Nominal level of sensitivity 40 dBm default lt sds gt gt 128 More aggressive lt sds gt 129 is 39 dBm sds 128 Less aggressive sds 127 is 41 dBm m The lt sdi gt specifies the amount of time the modem shall wait before reporting silence to the DTE It is used for determining Presumed hang up SILENCE after which the modem sends lt DLE gt s to DTE Default is 5 seconds AT VSM lt cml gt lt vsr gt Compression Method and Sampling Rate Specifications This command enables the compression method and sampling specifications where cml compression method label and vsr voice sampling rate AT VSM Returns the numeric and string labels of the compression method currently in use and the sampling rate currently in use AT VSM Reports the voice compression methods supported by the DCE and the voice sampling rates at which they are supported The default is 129 8000 16 bit linear 8 0 kHz 128 8 bit linear 7200 8000 11025 129 16 bit linear 7200 8000 11025 130 8 bit A law 8000 131 8 bit u law 8000 132 IMA ADPCM 8000 46 Lucent Technologies Inc Version
14. instructs the modem chip set to go on hook and restore the profile saved by the last amp W command Either ZO or Z1 restores the same single profile Result Codes OK n 0 1 ERROR Otherwise amp Bn V 32 Auto Retrain This modem always auto retrains amp BO Disable V 32 auto retrain NOT SUPPORTED amp B1 Enable V 32 auto retrain default Result Codes OK n 1 ERROR Otherwise amp Cn Data Carrier Detect DCD Control Data Carrier Detect is a signal from the modem to your computer indicating that the carrier signal is being received from a remote modem DCD normally turns off when the modem no longer detects the carrier signal amp CO The state of the carrier from the remote modem is ignored DCD circuit is always on amp C1 DCD turns on when the remote modem s carrier signal is detected and off when the carrier signal is not detected default Result Codes OK n 0 1 ERROR Otherwise Version 1 0 Lucent Technologies Inc 13 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Command Reference continued amp Dn DTR Control This command interprets how the modem responds to the state of the DTR signal and changes to the DTR signal amp 00 Ignore The modem ignores the true status of DTR and treats it as always on This should only be used if your computer does not provide DTR to the modem amp 01 Ifthe signal is not detected while in on line data mode the modem enters command mode
15. is frequently used to control the modem chip set s responses The primary function of this control is to control the modem chip set s call response capabilities Ext Result Code Dial Tone Detect Busy Tone Detect X3 Enable Disable Enable Enable default X6 Enable Enable Enable Extended Result Codes Disabled Displays only the basic result codes OK CONNECT RING NO CARRIER and ERROR Enabled Displays basic result codes along with the connect message and the modem s date rate and an indication of the modem s error correction and data compression operation Dial Tone Detect Disabled The modem dials a call regardless of whether it detects a dial tone The period of time the modem waits before dialing is specified in register S6 Enabled The modem dials only upon detection of a dial tone and disconnects the call if the dial tone is not detected within 10 seconds Busy Tone Detect Disabled The modem ignores any busy tones it receives Enabled The modem monitors for busy tones Result Codes OK n 0 1 2 3 4 5 6 7 ERROR Otherwise 12 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Command Reference continued Yn Long Space Disconnect Long space disconnect is always disabled YO Disable long space disconnect default Y1 Enable long space disconnect NOT SUPPORTED Result Codes OK n 0 ERROR Otherwise Zn Recall Stored Profile This command
16. mode to TAD mode In this example the sequence begins at the point of the user in speakerphone mode and at some point in time wants to put the other end in hold The application may switch to TAD mode in hold state and play some music wave file to the line Command Description AT VLS 1 Applications switches modem out of speakerphone mode and into TAD mode OK DCE responds Now in TAD mode AT VTX DTE selects voice transmit mode CONNECT DCE responds lt Data gt DTE plays music through modem to remote caller lt DLE gt lt ETX gt DTE indicates end of voice transmit data OK DCE acknowledges switch back to voice command state The Application may switch back to speakerphone mode by following the example to switch from TAD mode to speakerphone mode Example 7 Call screening amp recording a message using TAD IS101 lt dle gt shielded method The TAD application is loaded The modem is initially idle in data mode FCLASS 0 Command Description RING DCE reports ringing from remote station AT FCLASS 8 The modem enters voice mode OK DCE responds AT VGT 128 Set speaker volume to normal OK DCE responds AT VSM 132 8000 DTE selects IMA ADPCM with 8 0 kHz sampling rate OK DCE responds Version 1 0 Lucent Technologies Inc 53 Host Based Controller Modem AT Command Set AT Voice Commands Reference continued AT VSD 128 0 OK lt DLE gt R AT VLS 1 OK Data Addendum June 15 1998 DTE selects normal s
17. the greeting message the application may issue the WAVE_OUT_STOP message to the wave driver AT VTS 933 0 120 DTE annotates greeting message with a 1 2 second beep OK DCE responds The Application may receive voice samples using the wave driver The application may issue WAVE IN OPEN and WAVE IN START messages to the wave driver AT VSD 128 50 DTE selects normal silence detection sensitivity and a silence detection interval of 5 seconds Enable silence detection OK DCE responds AT VLS 5 Speaker is attached to system and modem is off hook OK DCE is off hook The caller leaves a message and hangs up The modem detects silence for a specified period of time and then notifies the DTE lt DLE gt s DCE issues presumed end of message after silence detection interval has elapsed At the end of the message the application may issue the WAVE_IN_STOP message to the wave driver ATH DTE issues standard command to terminate call DCE goes on hook speaker and microphone are detached from system and modem returns to data mode FCLASS 0 OK DCE response Version 1 0 Lucent Technologies Inc 55 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT DSVD Commands In order to use the DSVD without a local phone a ring 3 application can be used to simulate the local phone In the absence of such an application the voice connection needs to be auto enabled This is accomplished by the following DSVD custom AT co
18. the past two hours failed The ERROR result code appears in countries that do not require blacklisting 22 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Command Reference continued Data Compression Control This command determines the operation of V 42bis and MNP class 5 data compression Online changes do not take effect until a disconnect occurs first 0 V 42bis MNP 5 disabled No data compression C1 V 42bis MNP 5 enabled Data compression enabled default Result Codes OK n 0 1 ERROR Otherwise En Auto Retrain and Fallback Fall Forward Provides option for the modem to automatically monitor line quality to fall back when line quality is insufficient and to fall forward when line quality is sufficient 0 Disable fallback fall forward 1 Enable fallback Disable fall forward 2 Enable fallback fall forward Default Result Codes OK 0 1 2 ERROR Otherwise Version 1 0 Lucent Technologies Inc 23 Host Based Modem Data Addendum AT Command Set June 15 1998 Test and Debug AT Commands The following commands are to be used for testing and debugging only and are not meant for general use amp amp C Write to Read from DSP Register AT amp amp C lt loc gt lt val gt writes the value val to DSP register at location loc AT amp amp C lt loc gt reads from location loc amp amp L Line to
19. will echo data from the DTE This modem does not support the FO version of the command However the modem will accept F1 which may be issued by older communication software to assure backward compatibility F0 Online data character echo enabled NOT SUPPORTED F1 Online character echo disabled Result Codes Version 1 0 Lucent Technologies Inc Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Command Reference continued OK n 1 ERROR Otherwise Hn Hook Control This command instructs the modem to go on hook to disconnect a call or off hook to make the phone line busy HO Modem goes on hook default H1 Modem goes off hook Result Codes OK n 0 1 ERROR Otherwise In Request ID Information This command displays specific product information about the modem 10 Returns modem identity string and driver version number same as I3 l1 Calculates ROM checksum and displays it on the DTE I2 Performs a ROM check and calculates and verifies the checksum displaying OK or ERROR I3 Returns modem identity string and driver version number same as 10 l4 Returns firmware version for data pump 15 Returns the board firmware ID and country ID hexadecimal for Apollo Returns the code ver board ID country ID and subsystem vendor ID in hexadecimal for MARS 16 8 Returns OK for compatibility 19 Returns country ID in English H1 Displays connection information as described in th
20. 0 AT Commands continued Data Addendum June 15 1998 Command Sub Values Description parameters 4ESA trans idle gt lt framed trans idle _idle gt lt crc_type gt lt nrzi_en gt framed idle crc type nrzi en m X JJ gt JJ ITF lt off gt lt on gt In transparent sub ad DCE transmits marks ones on idle 0 In Framed sub mode DCE transmits HDLC flags on idle 1 In Framed sub mode DCE transmits marks ones on idle 0 Disable CRC generation and checking 1 In Framed sub mode the 16 bit CRC specified in V 42 is generated by the DCE in the transmit direction and checked by the DCE in the receive direction Disable NZRI m and decoding Determines the threshold in octets above which the DCE shall generate a flow off signal Determines the threshold in octets below which the DCE shall generate a flow on signal 60 Lucent Technologies Inc Read Syntax command to query the current values of the ESA sub parameters Test Syntax command to obtain all supported values of the ESA sub parameters Transmit Flow Control Thresholds This command allows the DTE to determine the input buffer size in the DCE for data on circuit 103 from the DTE to control the thresholds used for flow control of such data The DCE shall transmit a string of information to the DTE consisting of ITF list of supported off values gt list of supported o
21. 255 If 0 use the standard busy detection algorithm otherwise use the country specific values for cadence 15 Max busy cadence off time in multiples of 10 ms 0 255 If 0 use the standard busy detection algorithm otherwise use the country specific values for cadence Continuous unavailable detection flag 0 disabled 1 enabled 17 Answer tone validation time in multiples of 10 ms 0 255 Blacklisting delayed flag 0 disabled 1 enabled Version 1 0 Lucent Technologies Inc 65 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands for Homologation Testing and Debugging continued Table 13 The Homologation Parameters continued Pari Parameter Description 19 Number of failed attempts allowed before 0 255 blacklisting Troubled call delay in minutes 0 255 Ineffective call delay in minutes 0 255 Erroneous call delay in minutes Blacklisting duration in multiple of 10 minutes 0 255 0 only delayed and no blacklisting 255 no limit i e till power turned off le Over current sense validation time in 0 255 0 current sense disabled ATA ATD multiples of 10 ms Calling tone flag 0 disabled 1 enabled and disable with dial modifier permitted 2 enabled and disable with dial modifier not permitted Blind dial flag 0 not permitted ATD ATX 1 permitted 2 permitted with speaker on 21 Busy detect disable with ATX flag 0 not permit
22. ASS 1 Application switches modem out of voice mode and into FAX mode OK DCE responds Now in FAX mode still off hook and connected to incoming call ATA Application instructs modem to answer FAX call using standard AT commands OK DCE responds The call is answered and modem continues with procedures to establish connection and receive FAX transmission The application software will then take care of disconnecting the call when the FAX is done and returns to data mode FCLASS 0 52 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Voice Commands Reference continued Example 5 Receiving an incoming data call in speakerphone or TAD mode and switching to data mode In this example the sequence begins at the point of the user or telephone answering device TAD taking the speakerphone off hook and detecting a data calling tone from the other end Command Description lt DLE gt e DCE detects data calling tone from the remote modem and informs the application by sending DLE e seguence AT FCLASS 0 Application switches modem out of voice mode and into data mode OK DCE responds Now in data mode still off hook and connected to incoming call ATA Application instructs modem to answer data call using standard AT commands CONNECT DCE responds The call is answered and modem continues with procedures to establish connection Example 6 Switching from speakerphone
23. AT Voice Command Set Voice Commands AT FCLASS 8 Enter voice mode AT VIP AT VCID Caller ID AT VDR Distinctive ring AT VGT Speaker volume control AT VIT DTE DCE inactivity timer AT VNH Automatic hang up control AT VTD Set beep tone duration timer AT VLS Analog source destination selection and DTMF tone reporting AT VSD Set silence detection timer AT VRA Set ringback goes away timer AT VRN Set ringback never came timer AT VTS DTMF tone generation AT VTR Start full duplex voice transmission and reception process AT VTX Enter voice transmit state see examples AT VRX Enter voice receive state see examples AT VSM Voice compression method AT VEM Event reporting and masking AT VGR Receive gain selection AT VPR Select DTE DCE interface rate Table 7 The AT Voice Command Set Not Defined In IS 101 Specification ATS32 Synthetic ring volume ATS33 Synthesized ring freguency 42 Version 1 0 Lucent Technologies Inc Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Voice Commands Reference AT FCLASS 8 Enter Voice Mode The command AT FCLASS 8 puts the modem in voice mode Speakerphone and TAD modes are subsumed under the more general heading of voice mode and use a particular subset of voice mode commands to implement their respective features and functions The modem controller will maintain the overall state of the system so as to know when voice commands are issued in the context of using t
24. ATD allowed before any further dial attempts are blocked 255 not applicable 35 o 255 Erroneous increment count 0 255 Dial tone validation time in multiples of 100 ms 0 255 A 36 TD Busy tone detection during dial tone detection flag 0 not required 1 required DTMF high and low tone level difference in dB 0 255 MEN 39 Local phone detection in speakerphone 0 enabled 1 disabled Pulse dialing flag 0 enabled 1 disabled 3b Dial tone call progress filter index 0 2 340 560 Hz 12310 485 Hz 2 363 502 Hz 3 276 504 Hz 4 415 460 Hz 5 310 640 Hz Dial tone detection threshold in dB ABCD dialing permitted flag 0 permitted 1 not permitted Comma pause duration limit in seconds If there are 0 255 ATD multiple commas between digits the total pause duration is limited to the duration set by this parameter TAD transmit level in dB 0 255 ECCE 40 Data FAX carrier receive threshold in dB There is a 6 0 255 dB offset in DSP This parameter value should set to required threshold 6 dB DAA gain 41 No dialtone time out duration while detecting dialtone with W dial modifier in seconds FAX Data answer tone detection threshold in dB 43 Diattone level absolute 44 FAXreceieihresholdindB ftw 46 Ringer impedance relay flag 0 off 1 on 49 Real complex impedance real Tx amp Rx gains set by mercury
25. CE ends voice transmission to DTR with this code and returns back to voice command state DTE issues standard command to terminate call Speakerphone goes on hook speaker and microphone are detached from system and modem returns to data mode FCLASS 0 DCE responds Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Voice Commands Reference continued Example 8 Call screening amp recording a message with TAD using the wave driver to transmit and receive voice samples The TAD application is loaded The modem is initially idle in data mode FCLASS 0 Command Description RING DCE reports ringing from remote station AT FCLASS 8 The modem enters voice mode OK DCE responds AT VGT 128 Set speaker volume to normal OK DCE responds AT VSD 128 0 DTE selects normal silence detection sensitivity and a silence detection interval of 0 seconds Disable silence detection OK DCE responds AT VSM 129 8000 DTE selects 16 bit linear voice compression with 8 0 kHz sampling rate OK DCE responds lt DLE gt R DCE detects another ring and notifies DTE AT VLS 1 The modem answers call OK DCE is off hook The TAD next plays its greeting message issues a beep and records the caller s message The Application may transmit voice samples using the wave driver The application may issue WAVE_OUT_OPEN and WAVE_OUT_WRITE messages to the wave driver At the end of
26. Debugging continued Table 15 The Country Specific Homologation Parameters continued Carr Canada Mexico inda Vietnam Philippines Version 1 0 Lucent Technologies Inc 81 Host Based Controller Modem AT Command Set Data Addendum June 15 1998 AT Commands for Homologation Testing and Debugging continued Table 15 The Country Specific Homologation Parameters continued Par ABC o o o ER gt N ABICO IN 2 23 E 45 46 48 Co 82 India Vietnam Lucent Technologies Inc Philippines oj aj Oi ol Co o o o Co Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Commands for Homologation Testing and Debugging continued Par Canada DR mec e Sm sno a TAD 8 00 0 0 0 Version 1 0 Lucent Technologies Inc 83 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands for Homologation Testing and Debugging continued Country Specific S Register Defaults Note The values listed in Table 15 are typical values and change based on OEM preferences Table 156 Country Specific Defaults for S Registers Smeg ausvaia Belgium Denmark Fame Germany 004 004 004 004 002 004 Changing this value with the ATS command is not permitted Table 16 Country Specific Defaults for S Regi
27. Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Commands for Homologation Testing and Debugging continued Homologation Parameters Table 13 The Homologation Parameters Par Parameter Description Pulse dial make time 0 255 Pulse dial break time 0 255 3 Pulse dial digit pattern 1 normal 2 Sweden ATD 3 Norway DTMF high tone level in dB with implied minus sign 0 255 Min DTMF dial speed in ms 0 255 6 Max dial speed in ms 0 255 E i sign EH Dial tone delay i e waiting time before dial tone pu detection begins in multiples of 10 ms Delay before resetting ring count to 0 in multiples of 100 ms a DU ERE e Mex nng countfor aui answer 0255 1000 0 833 x Max ing frequency e Max ring signal period 0 255 1000 0 833 x Min ring frequency Min ring cadence on time in multiples of 10 ms 0 255 Min ring cadence off time multiple of 20 ms 0 255 11 Min busy cadence on time in multiples of 10 ms 0 255 If 0 use the standard busy detection algorithm otherwise use the country specific values for cadence Max busy cadence on time in multiples of 10 ms 0 255 If 0 use the standard busy detection algorithm otherwise use the country specific values for cadence Number of busy cycles required to detect busy condition 0 255 14 busy cadence off time in multiples of 10 ms 0
28. Line Loopback This command provides a loopback for line to line amp amp R Write to Read from DSP RAM Location AT amp amp R lt loc gt lt val gt writes the value val to DSP RAM location loc AT amp amp R loc reads from location loc amp amp S Speaker Codec Loopback This command provides a loopback from the microphone to the speaker T94 Test External RAM This command 94 is used for testing the external RAM If the external RAM is good this command returns PASS If the external ram is not good this command returns FAIL Example 94 PASS external ram is good 961125 96T124 Test DSP 56K Version in External Ram The command AT96T125 is used for testing the DSP 56K code version and checksum running in external ram After issuing AT T125 the user may then issue ATI4 to get DSP Version or to get the DSP checksum The command 125 is not valid for ramless version of the DSP 56K code The command 124 is for internal ram version UD Unimodem Diagnostics The reference for the 00 command is Microsoft s Draft Reference Specification rev 0 85 The Lucent Technologies modem implements a subset of the parameters in that document UD is an action command It does not take parameters It shall be the last command in the command line The modem logs aspects of its operation for each call and saves these results in volatile memory until cleared b
29. Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set Test and Debug AT Commands continued Table 7 errorControl Active from 3 5 2 V 58 0 jDiabenne X 1 V 42 LAPM X 37F_ Reseved V58 80 MNP10 81 ECP Enhanced Cellular Protocol ew He 82FF Reserved for mgs Table 8 compressionActive from 3 2 2 V 58 0 eX 2 7F Reseved VBB 80 MNP5 X Table 9 Additional callCleared codes 3 6 4 V 58 Call is still in progress 3 Call Waiting signal detected Table 10 callCleared codes from 3 6 4 V 58 1994 callCleared Indicates that the DCE has gone on hook and that the previously existing network connection has been cleared These values are hexadecimal converted from decimal in V 58 Value Description Notes Implemented 0 CauseUnidentified Call setup issues X 13 SeeTableQabove O X A NMSinitiatedDialCal Network Management System Cd B NMSinitiatedLeasedLineRestoral C NMSmiiatedRedal O o J J D j NMSimiiatedDialDisconmect bI 14 PowerLoss DCE 15 EquipmentFailure y y 16_ FrontPanelDisconnectReguested 17 FeonPanelleasedlineRestoral 18 AutomaticLeasedLineRestoral 19 InactivityTimerExpired J 1 O X 1E ectii6RestoralRequest DTE Interface O
30. aler Type Tone ResultCode Form Text ExtendResultCode Enabled Dial Tone Detect Enabled Busy Tone Detect Enabled LSD Action Standard RS232 DTR Action Standard RS232 Press any key to continue ESC to quit Option Selection V22b Guard Tone Disabled Flow Control Hardware Error Control Mode V42 MNP Buffer Data Compression Enabled AutoAnswerRing 0 AT Escape Char 43 CarriageReturnChar 13 Linefeed Char 10 Backspace Char 8 Blind Dial Pause 2 sec NoAnswer Timeout 50 sec Pause Time 2 sec Press any key to continue ESC to guit Option Selection No Carrier Disc 2000 msec DTMF Dial Speed 95 msec Escape GuardTime 1000 msec Data Calling Tone Disabled Line Rate 33600 DSVD mode Disabled Stored Phone Numbers amp Z0 amp Z1 amp Z2 amp Z3 OK Version 1 0 Lucent Technologies Inc Host Based Controller Modem AT Command Set dozrmup gt O 3 o go lt X X lt OO AT Cmd S10 S11 12 35 37 SSE 17 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Command Reference continued amp Wn Store Current Configuration This command stores certain command options and S register values except S3 S4 and S5 The ATZ command or a power up reset of the modem restores this profile Result Codes OK n 0 ERROR Otherwise amp Yn Select Stored Profile for Hard Reset This command does not change the behavior of the modem but is included for compatibility with applicatio
31. an action if the 6 Enables DCE control of V 8 and Cl DCE is off hook If enabled V 8 option negotiation does not preclude simultaneous implementation of other negotiation means like V 8bis V 18 V 32bis 1 The default value disables the Cl option while in V 8 negotiation However the modem when answering a call sends the ANSam and is capable of starting in V 34 mode 5 Enables DCE control of V 8 and Cl option 21h Call function for H 324 calls cth Call function for DSVD calls AT A8E Report current values of sub parameters AT ABE Report supported ranges of values 57 Version 1 0 Lucent Technologies Inc Host Based Controller Modem Data Addendum AT Command Set June 15 1998 V 25ter AT Commands continued o oo 80 lt gt 4 A8l lt v8cf gt lt CR gt This indication i is used by an answering DCE if A8E v8a 0 to indicate detection of a V 8 CI signal and report the recovered Call Function octet s Value lt v8cf gt is a hexadecimal code octet that can take values as shown above in A8E command A8M lt hexadecimal Coded CM Refer to V 8 document for coding Directs the DCE to send a V 8 CM coded CM or JM octet or JM octet or JM signal using the specified string gt hexadecimal coded string A8A lt type gt lt CR gt 1 Indicates V 8 ANSam signal This indication is used by a calling flags if A8E v80 0 to indicate 0 Indicated no ANSam signal detected detection of an a
32. and Set June 15 1998 AT Commands for Homologation Testing and Debugging continued Table 15 The Country Specific Homologation Parameters continued 72 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Commands for Homologation Testing and Debugging continued Table 15 The Country Specific Homologation Parameters continued Parr EMT NewZeal Norway Spain Sweden Switzerland Version 1 0 Lucent Technologies Inc 73 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands for Homologation Testing and Debugging continued Pars Netherlands Way NewZeal Norway Spain Sweden Swizerand 74 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Commands for Homologation Testing and Debugging continued Table 15 The Country Specific Homologation Parameters continued Lors UK Austria Japan China Korea Malaysia Singapore Version 1 0 Lucent Technologies Inc 75 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands for Homologation Testing and Debugging continued Table 15 The Country Specific Homologation Parameters continued Lors UK Austria Japan Chia Korea Malaysia Singapore L oe oue ow oo 9 oo om a c oo oe oe oe oe oo 76 Lucent Technologi
33. at for entering AT commands is TYPE ATXn where X is the AT command and n is the specific value for that command PRESS Enter If n is omitted from a command that takes a parameter valu the value 0 l zero is assumed Any command issued is acknowledged with a response in either text or numeric values known as result codes Table 2 lists all the valid result codes In the following listing all commands and command values accepted by the modem are shown any entries other than those shown cause the ERROR result code Escape sequence The escape sequence allows the modem to exit data mode and enter on line command mode While in on line command mode you may communicate directly to your modem using AT commands Once you are finished you may return to data mode using the ATO command A pause the length which is set by the Escape Guard Time S12 must be used before and after an escape sequence is issued This pause prevents the modem from interpreting the escape sequence as data The value of the escape sequence character may be changed using Register S2 AI Repeat Last Command This command repeats the last command string entered Do not precede this command with an AT prefix or conclude it by pressing Enter A Answer Command This command instructs the modem to go off hook and answer an incoming call Bn Communication Standard Setting This command determines CCITT vs Bell standard BO Selects CCITT V 22 mode when the modem is
34. at if a particular modem board does not support a feature such as voice then the corresponding commands are disabled for that modem Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Command Summary The following tables summarize the commands implemented by the modem Commands may be executed when the modem is in COMMAND mode COMMAND mode is entered upon under one of the following conditions After power up Atthe termination of a connection After the execution of a command other than dial or answer commands ATO or AT amp T Upon the receipt of the ESCAPE SEQUENCE three consecutive characters matching the contents of S register 2 while on line mode Upon the on to off transition of DTR if amp D1 amp D2 or amp D3 has been set Table 1 AT Command Set Summary Communication standard setting amp M Asynchronous communications mode C Carrier control 89 Asynchronous communications mode Data set ready DSR option T V w X Result code selection and call progress T Inactivity timer monitoring amp B amp C Data carrier detect DCD control Data terminal ready DTR 2 Version 1 0 Lucent Technologies Inc Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Command Summary continued Table 2 AT Testing and Debugging Command Set Summary Write to read from host interface 94 Test external DSP RAM Line to line loopback 961124 Ret
35. ault Bit 7 Pulse dial make break ratio amp Pn 0 33 67 make break ratio amp P1 amp P2 Default 1 39 61 make break ratio amp PO Default 112 01110000b S24 Timer to Control Sleep Mode This command displays the number of seconds of inactivity no characters sent from the DTE no RING in the off line command state before the modem places itself into standby mode A value of zero prevents standby mode S24 is an alias for S89 Note If a number between 1 and 4 is entered for this register it will set the value to 5 and the inactivity before standby will be 5 seconds This is done for compatibility with previous products which allowed time outs down to 1 s Range 0 5 65 Default 10 S28 V 34 Modulation Enable Disable This register enables disables V 34 modulation 0 disabled 1 enabled Range 0 1 Default 1 32 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Commands Reference S Registers continued S30 Inactivity Timer S30 specifies the length of time in minutes that the modem will wait before disconnecting when no data is sent or received This function is only applicable to buffer mode Range 0 255 Default 0 S32 Synthetic Ring Volume This register specifies a synthetic ring volume Range 0 255 allowed but not meaningful Default 10 S33 Synthetic Ring Frequency This register specifies a synthetic ring frequenc
36. ay the value of an S register TYPE ATSn where n is the register number PRESS Enter To modify the value of an S register TYPE ATSn r where n is the register number and r is the new register value PRESS Enter S0 Auto Answer Ring Number This register determines the number of rings the modem will count before automatically answering a call Enter O zero if you do not want the modem to automatically answer at all When disabled the modem can only answer with an ATA command Range 0 255 Default 0 Units rings S1 Ring Counter This register Ring Counter is read only The value of S1 is incremented with each ring If no rings occur over a six second interval this register is cleared Range 0 255 Default 0 Units rings S2 AT Escape Character user defined This register determines the ASCII valued used for an escape sequence The default is the character The escape sequence allows the modem to exit data mode and enter command mode when on line Values greater than 127 disable the escape sequence Range 0 255 Default 43 Units ASCII S3 Command Line Termination Character user defined This register determines the ASCII values as the carriage return character This character is used to end command lines and result codes Range 0 127 ASCII decimal Default 13 carriage return Units ASCII Note This register value is not stored with amp W command 29 Version 1 0 Lucent Technologies Inc Ho
37. ce character hex 20 key single hexadecimal numeric digit see Table 1 equal sign hex 3D value any string as defined below Tables 1 3 etc gt right angle bracket greater than sign hex 3E Unless otherwise noted all values are hexadecimal numbers Any numeric values from tables in ITU V 58 are converted to hexadecimal Multi digit values are reported MSD first Leading O s may be deleted The following table includes all the items listed in Microsoft s specification for the ATZUD command Within these items the one that has a check mark in the Implemented column is implemented in this release of the modem product For an item that has an extra option table please check the corresponding option table to see exactly which option has been implemented Table 1 ATZUD Last Call Status Report Format 2908 yes Diagnostic Command Specification revision number digit digit 2 Tabe3 ot jMut medamode 3 Tae4 O DTE DCE interface mode o V 8 JM octet string same format as V 25ter Annex A in quotes _ Reserved for call negotiation reports ll 1 6F Normalized Mean Squared error 100 0x64 minimum inter symbol distance Table 5 V 34 INFO bit map f 19 Reserved for modulation setup and training reports Note 5 I Table 6 Transmit Carrier Negotiation Result Xx Table 6 Receive Carrier Negotiation Result XI 0 1F40 Transmit Carrier symbol rate 0 8000 ll X 0 1F40 Recei
38. chnologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Command Reference continued V Bits s Rate Adjusted This command determines whether or not the negotiated connect speed of the modem forces the adjustment of the speed of the DTE to the modem s speed MO Buffer mode Error control selected or not by Wn command default M1 Force the max DCE rate to the DTE rate Result Codes OK n Oor 1 ERROR Otherwise Wn Break Control Controls the response of the modem to a break received from the DTE or the remote modem or the B command The response is different in three separate cases The first case is where the modem receives a break from the DTE when the modem is operating in data transfer mode KO Enter on line command mode no break sent to the remote modem K1 Clear data buffers and send break to remote modem K2 Same as 0 K3 Send break to remote modem immediately K4 Same as 0 K5 Send break to remote modem in sequence with transmitted data Default The second case is where the modem is in the on line command state waiting for AT commands during a data connection and the B is received in order to send a break to the remote modem KO Clear data buffers and send break to remote modem K1 Clear data buffers and send break to remote modem Same as 0 K2 Send break to remote modem immediately K3 Send break to remote modem immediately Same as
39. cters lost data overrun errors to DTE Note 9 Transmit Frame count if error control protocol running Note 8 x Of Received Frame count if error control protocol running Note 8 x Of Transmit Frame error count if error control protocol running Note 9 X Received Frame error count if error control protocol running Note 9 pr nj SAD y O 60 Tables9 10 Note10 Termination Cause NN X 6 digits OFF Cal Waiting eventcount O Z y o27F Reserved for future versions of this specification o Cd 80FF 1 Reserved for manufacturer proprietary keys Table 2 Call Setup Result Codes 0 Nopreviouscall modemloghasbeenclearedsinceanypreviouscall l X O 2 Reorder signal detected network busy 5 Voice detected yy 6 Texttelephone signal detected see V 18 nw y HEH as Po po B E o s i Data Calling signal detected e g V 25 CT V 8 CI Fax Answering signal detected e g T 30 CED DIS Fax Calling signal detected e g T 30 CNG _V 8bis signal V 8bis signal detected Reserved Table 6 gstnModulationSchemeActive from 3 7 2 V 58 HOH AF V 23 Constant Carrier 1200 75 V 23 Switched Carrier half duplex V26bs 1 0 V 26bis V 26ter V 27ter V 29 HD V 32bis V 34 HD Reserved V 58 K56FLEXTM X V 32terbo Reserved for mfgs 26 Lucent Technologies Inc
40. e 1 254 Default 20 Units 1 seconds S11 DTMF Dialing Speed This register determines the dialing speed which is prefixed for each country Range 50 150 Default 95 Units 001 seconds 12 Escape Guard Time This register sets the value in 20 ms increments for the required pause after the escape sequence default 1 s Range 0 255 Default 50 Units 02 seconds 14 General Bit Mapped Options Status Indicates the status of command options Only bit 3 and bit 6 are used read only Bit 3 Result codes Vn 0 Numeric VO 1 Verbose VI Default Bit 6 Pulse dial PPS selection amp Pn 0 10 PPS amp p0 amp p1 Default 1 20 PPS amp p2 Default 8 00001000b Version 1 0 Lucent Technologies Inc 31 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands Reference S Registers continued S21 V 24 General Bit Mapped Options Status Indicates the status of command options Only bits 3 4 and 5 are used read only Bits 3 4 DTR behavior amp Dn 0 amp DO selected 1 amp D1 selected 2 amp D2 selected Default 3 amp D3 selected Bit 5 DCD behavior amp Cn 0 amp CO selected 1 amp C1 selected Default Default 48 00110000b 22 Results Bit Mapped Options Status Indicates the status of command options Only bits 4 5 and 6 are used read only Bits 4 6 result codes Xn 0 selected 4 X1 selected 5 X2 selected 6 selected 7 X4 selected Def
41. e DTE to switch the DCE to another mode AT VIT x to set the inactivity timer 56 Version 1 0 Lucent Technologies Inc Host Based Controller Modem Data Addendum AT Command Set June 15 1998 V 25ter AT Commands The GMx commands are required by the Microsoft PC98 specifications Manufacturer Identification GMI Read Syntax AT GMI Result Lucent Data Fax Lucent Data Fax Voice VoiceView depending on product Version Revision Information GMR Read Syntax AT GMR Result Lucent driver version number e g 1 5 05 Modem Identification GMM7 Read Syntax AT GMM Result H 324 video ready rev 1 0 The chip set supports the following functionalities of the V 25ter for a H 324 call The modified function of the ATD command when issued while the analog voice connection is established This command will not cause the DTMF dialing and tone detection associated with the usual ATD command The following AT commands sub parameters and values are supported Table 8 V 25ter AT Commands Command Sub Values Description parameter AT A8E lt v80 gt 1 The default value disables the Cl option Defined for two conditions as a lt v8a gt lt v8cf gt while in V 8 origination negotiation parameter to configure However the modem when initiating the V 8originating and answering call as a data call detects ANSam and is operation while the DCE is on capable of starting in V 34 mode hook It initiates
42. e following example Result Codes As described n20 1 2 3 4 5 6 7 8 9 11 ERROR Otherwise 8 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Command Reference continued The ATI11 result has two pages the user must hit a key to get the second page See the following example ati11 Description K56flex connection V 90 Connection 1 Last Connection 56K V 90 2 Initial Transmit Carrier Rate 28800 28800 3 Initial Receive Carrier Rate 50000 49333 4 Final Transmit Carrier Rate 28800 28800 5 Final Receive Carrier Rate 50000 49333 6 Protocol Negotiation Result LAPM LAPM 7 Data Compression Result V42bis V42bis 8 Estimated Noise Level 152 152 9 Receive Signal Power Level dBm 25 25 10 Transmit Signal Power Level dBm 16 16 11 Round Trip Delay msec 4 4 Press any key to continue ESC to guit 12 Near Echo Level dBm NA NA 13 Far Echo Level dBm NA NA 14 Transmit Frame Count 3 3 15 Transmit Frame Error Count 0 0 16 Receive Frame Count 0 0 17 Receive Frame Error Count 0 0 18 Reirain by Local Modem 0 0 19 Retrain by Remote Modem 0 0 20 Call Termination Cause 0 0 21 Robbed Bit Signaling 00 00 22 Digital Loss dB 6 6 23 Remote Server ID 4342C3 NA OK The ATI11 command may be issued from on line command mode or after the end of a call After a call some of the values are no longer valid it s useful to know which ones Each of the line items in the ATI11 result is ex
43. ection default S38 2 32 kbit s S38 3 34 kbit s S38 4 36 kbit s S38 5 38 kbit s S38 6 40 kbit s S38 7 42 kbit s S38 8 44 kbit s S38 9 46 kbit s S38 10 48 kbit s S38 11 50 kbit s S38 12 52 kbit s S38 13 54 kbit s S38 14 56 kbit s The number of robbed bit signaling RBS frames detected decreases the true DCE rate per the following table RBS links Rate hit Kbit s TIN O DON 2 4 E NEIN 5 8 For example if 538210 and there are RBS links the K56flex downstream rate will be 48 4 44 kbit s The exception to this is for 32 kbit s and 34 kbit s which are the true rates regardless of the number of RBS frames detected One special value of S38 S38 251 is used for back to back factory testing of V 34 rates with DSP code running in external memory Set 838 251 on both originating and answering modems This feature is not valid with ramless solution S42 Auto Rate default 1 range 0 1 This command is used for testing and debugging only V 32bis and V 22bis auto rate is disabled Retrain operation is disabled or enabled in data mode and fallback is disabled in data mode In K56flex mode S42 0 forces connection at the rate specified by S38 even if the rate cannot be sustained without fallback to V 34 0 auto rate disabled 1 enabled Range 0 1 Default 1 34 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Commands Refe
44. ection at 52000 bits KSOlexmode orV SO Connection at 54000 bit s K56flex mode Connection at 56000 bit s K56flex mode Connection at 28000 bit s V 90 mode 4 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Command Summary continued Result Code Numeric Description O Connection at 29333 bit s V 90 mode Connection at 30666 bit s V 90 mode Connection at 33333 bit s V 90 mode Connection at 34666 bit s V 90 mode Connection at 42666 bit s V 90 mode Connection at 45333 bit s V 90 mode Connection at 46666 bit s V 90 mode Connection at 49333 bit s V 90 mode Connection at 50666 bit s V 90 mode Connection at 53333 bit s V 90 mode EC only appears when the extended result codes configuration option is enabled EC is replaced by one of the following symbols depending upon the error control method used V42bis V 42 error control and V 42bis data compression V42 V 42 error control only MNP 5 MNP class 4 error control and MNP class 5 data compression MNP 4 MNP class 4 error control only NoEC No error control protocol Version 1 0 Lucent Technologies Inc Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands Reference AT commands are issued to the modem to control the modem s operation and software configuration AT commands can only be entered while the modem is in command mode The form
45. edials last number Should be the first character following ATD ignored otherwise P Pulse dialing T Touch tone dialing default Pause during dialing Pause for time specified in Register S8 before processing the next character in the dial string Wait for dial tone Modem waits for a second dial tone before processing the dial string V The modem switches to speakerphone mode and dials the number An ATH command may be used to disconnect the voice call Wait for quiet answer Wait for five seconds of silence after dialing the number If silence is not detected the modem sends a NO ANSWER result code back to the user Hook flash Causes the modem to go on hook for 0 5 seconds and then return to off hook Return to command mode Causes the modem to return to command mode after dialing the number without disconnecting the call Disable data calling tone transmission S n Dial a telephone number previously stored using the amp Zn x command see the amp Zn x command for further information The range of n is 0 3 Bong tone detection En Echo Command This command controls whether or not the characters entered from your computer keyboard are echoed back to your monitor while the modem is in command mode Disables echo to the computer E1 Enables echo to the computer default Result Codes OK n 0 1 ERROR Otherwise Fn Online Data Character Echo Command This command determines if the modem
46. em when the communication speed of the two modems is different NO When originating or answering this is for handshake only at the communication standard specified by 537 and the command N1 When originating or answering begin the handshake only at the communication standard specified by S37 and the ATB command During handshake fallback to a lower speed may occur default Result Codes OK n 0 1 ERROR Otherwise 10 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Command Reference continued On Return On line to Data Mode O0 Instructs the modem to exit on line command mode and return to data mode see AT Escape Sequence O1 This command issues a retrain before returning to on line data mode This command issues a rate renegotiation before returning to on line data mode Result Codes OK n 0 1 3 ERROR Otherwise P Select Pulse Dialing This command configures the modem for pulse non touch tone dialing Dialed digits are pulsed until a T command or dial modifier is received Tone dial is the default setting Qn Result Code Control Result codes are informational messages sent from the modem and displayed on your monitor Basic result codes are OK CONNECT RING NO CARRIER and ERROR The ATQ command allows the user to turn result codes on or off Qo Enables modem to send result codes to the computer default Q1 Disables modem from
47. es Inc Version 1 0 Data Addendum June 15 1998 Host Based Controller Modem AT Command Set AT Commands for Homologation Testing and Debugging continued 90 Version 1 0 Lucent Technologies Inc 77 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands for Homologation Testing and Debugging continued Table 15 The Country Specific Homologation Parameters continued Par Taiwan Thailand Indonesia ireland Portugal Hong Kong 78 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Commands for Homologation Testing and Debugging continued Table 15 The Country Specific Homologation Parameters continued Par Taiwan Thailand Indonesia Ireland Portugal Hong Kong K o ce oj oi w oi o o 65 o Co o o Er o o R 99 A l 23 0 E X 9 UED m ou E 3 L 9 3 E 39 1 46 O 48 0 AR Version 1 0 Lucent Technologies Inc 79 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands for Homologation Testing and Debugging continued Par Taiwan Thailand Indonesia Ireland Portugal Hong Kong 80 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Commands for Homologation Testing and
48. fault value 0 A Mandatory value 0 FAA 0 The DCE shall answer only as a Class 1 facsimile device No automatic switching of service class shall occur based on the calling device type FAA 1 The DCE can answer and automatically determine whether to answer as a facsimile DCE or as a data modem If a data modem is detected the DCE shall operate as described in 8 3 2 4 NOTE The FAA parameter controls automatic switching only from Class 1 to Class O for call answering only It does not affect call origination switching to Class 1 from other classes or switching to classes other than Class 0 Manufacturer Identification Read Syntax Result Lucent Data Fax Lucent Data Fax Voice VoiceView depending on product Product Identification FMM Read Syntax AT FMM Result Data Fax Data Fax Voice VoiceView depending on product Version Revision Information FMR Read Syntax AT FMR Result Lucent driver version number e g 1 5 05 Version 1 0 Lucent Technologies Inc 41 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Voice Command Set The AT Voice Command set follows a modified IS 101 architecture The commands are sent through the comm port but the data path is sent either through the comm port or through a DMA channel using the wave driver Tables 1 and 2 show a summary of the AT Voice Command Set Summary of the AT Voice Command Set Table 6 The
49. he speakerphone versus TAD or other voice contexts AT FCLASS Returns the current DCE mode AT FCLASS Queries the DCE for the range of modes supported DCE returns 0 1 8 80 data FAX voice VoiceView AT VIP Initialize Voice Parameters The command AT VIP causes the modem to initialize all the voice parameters to their default values The command has no effect on the FCLASS setting AT VCID lt pmode gt Caller ID With this command caller identification is enabled disabled e Disable caller ID lt pmode gt 0 e Enable formatted caller report lt pmode gt 1 e Enable unformatted caller report lt pmode gt 2 AT VCID Returns the current caller ID pmode AT VCID Queries the DCE for the range of supported caller ID report formats DCE returns 0 1 2 AT VDR lt enable gt lt report gt Distinctive Ringing amp Cadence Report This command will enable the distinctive ringing feature This will allow a report of DROF DRON to follow an exact ring cadence coming over the phone line AT VDR Returns the current values of lt enable gt and lt report AT VDR Queries the DCE for the range of supported distinctive ring configurations DCE returns 0 1 0 255 AT VGT lt level gt Speaker Volume Control This command will enable the speaker volume control lt level gt is O 255 lt level gt 128 Nominal volume level for sending to speaker lt level gt lt value greater than 128 gt Increase volume abo
50. hone is in operation phone mute feature AT VLS 7 restores attaches microphone along with speaker normal speakerphone operation AT VLS Reports the current analog source destination configuration along with a listing of all event codes reported from the modem to the DTE under that configuration AT VLS Queries the DCE for the range of supported configurations and the list of unsolicited event codes that the modem will report to the DTE under each configuration For speakerphone the configurations supported are 0 5 and 7 as explained above AT Commands Telephone Answering Device AT VTD lt dur gt Beep Tone Duration Timer This command sets the default duration for DTMF tone generation in 0 01 s increments For DTMF digits beep tone duration is the interdigit time For tone generation this number is the actual tone duration AT VTS lt string gt DTMF and Tone Generation in Voice Mode This command will cause the modem to produce a sequence of DTMF tones or other tones such as dial tone busy silence etc as specified in the string parameter Specifications for the format of tone strings are detailed in IS 101 m AT VTS reports the current lt string gt parameter m AT VTS reports the range of frequencies supported for tone generation as well as tone duration Example 200 3300 200 3300 0 500 AT VTR Start voice transmission and reception process This command will cause DCE to start full duplex voice m
51. ilence detection sensitivity and a silence detection interval of 0 seconds Disable silence detection DCE responds DCE detects another ring and notifies DTE The modem answers the call DCE is off hook The TAD next plays its greeting message issues a beep and records the caller s message Command AT VTX CONNECT Data lt DLE gt lt ETX gt OK AT VTS 933 0 120 OK AT VSD 128 50 OK AT VLS 5 OK AT VRX CONNECT lt Data gt Description DTE selects voice transmit mode DCE responds DTE plays greeting through modem to remote caller DTE indicates end of voice transmit data DCE acknowledges switch back to voice command state DTE annotates greeting message with a 1 2 second beep DCE responds DTE selects normal silence detection sensitivity and a silence detection interval of 5 seconds Enable silence detection DEC responds The speaker is attached to the system and the modem is off hook DCE is off hook DTE selects voice receive mode DCE agrees DCE delivers lt DLE gt shielded voice message to DTE The caller leaves a message and hangs up The modem detects silence for a specified period of time and then notifies the DTE that the message being recorded has ended 54 Command lt DLE gt s lt DLE gt lt DLE gt lt ETX gt ATH OK Description DCE issues presumed end of message after silence detection interval has elapsed DTE signals end of voice receive state D
52. internal components X Don t care 0x10 real Tx gain set by mercury internal components amp Rx gain set by external components 0x12 complex Tx gain set by mercury internal components amp Rx gain set by external components Mercury internal switch used to select complex impedance i NK 4 Mercury register CIOCA MSB value receive gain This parameter is relevant only when a Mercury line codec is used Version 1 0 Lucent Technologies Inc 67 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands for Homologation Testing and Debugging continued Par Parameter Description 4b Mercury register CIOCA LSB value hybrid This parameter is relevant only when a Mercury impedance etc line codec is used Mercury register CIOCB MSB value transmit gain This parameter is relevant only when a Mercury line codec is used Mercury register CIOCB LSB value BOM control This parameter is relevant only when a Mercury line codec is used ee m NM gain in TAD mode line codec is used re gain in speakerphone mode line codec is used 68 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Commands for Homologation Testing and Debugging continued Country Specific Homologation Parameters Country specific values for the homologation parameters are shown in Table 14 Note The values listed in Table 14 are typical values and cha
53. law 108 7 default or any other value Coding as specified by digital modem in V 8bis information If an old server does not tell its code type in V 8bis then the client modem chooses based on its country ID u law regions are Japan Taiwan Korea Hong Kong North America and Latin America Everywhere else is A law This S Register is valid only in K56flex mode Version 1 0 Lucent Technologies Inc 35 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT FAX Command Set Class 1 FAX The Lucent Technologies modem supports FAX commands conforming to EIA standard 578 These commands are given here with short descriptions complete explanations are given in the standard available from the Electronic Industries Association Table 5 The AT FAX Command Set Summary 4FCLASS Service class indication FCLASS Service class capabilities FCLASS n Service class selection FTS n Transmission silence FRS n Receive silence Receive silence o Transmit FAX modulation Receive FAX modulation FMM Product Identification Productidenificaion lt n gt 36 Version 1 0 Lucent Technologies Inc Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT FAX Commands Reference FCLASS Service Class Indication This command causes the modem to display the current setting The modem can operate either as a Class 0 data modem or a class 1 FAX modem
54. lowing AT FCLASS 8 Modem enters voice mode OK DCE responds Now in voice mode AT VGT 128 Speaker volume set to normal OK DCE responds Volume level is set AT VLS 7 Call is answered Attach internal speaker and microphone to the line DCE off hook OK DCE responds Now in speakerphone mode connected to the line call is answered Speakerphone user picks up the phone and hears the caller from the other end Conversation continues for awhile When it ends the speakerphone user hangs up Command Description ATH DTE issues standard command to terminate call OK DCE responds Speakerphone goes on hook Speaker and microphone are detached from system and modem returns to data mode FCLASS 0 Note 1 When the local phone goes off hook in the middle of a speakerphone call the speakerphone disconnects and the DCE returns lt DLE gt H to the DTE Note 2 When the speakerphone is on call waiting hold operation is initiated by Command Description ATD DTE sends hold command to DCE OK DCE responds Example 4 Receiving an incoming FAX call in speakerphone or TAD mode and switching to FAX mode In this example the sequence begins at the point of the user or telephone answering device TAD taking the speakerphone off hook and detecting a FAX calling tone from the other end Command Description lt DLE gt c DCE detects FAX calling tone from the remote FAX and informs the application by sending DLE c sequence AT FCL
55. microelectronics group Lucent Technologies Bell Labs Innovations Host Based Controller Modem AT Command Set Data Addendum June 15 1998 Version 1 1 Contents Page AT Command Summary 2 AT Commands Reference 6 Test and Debug AT Commands 24 AT Commands Reference S Registers 29 AT FAX Command Set Class 1 FAX 36 AT FAX Commands Reference 37 AT Voice Command 5 42 AT Voice Commands Reference 43 AT COMMANDS SPEAKERPHONE OPERATION 45 AT COMMANDS TELEPHONE ANSWERING DEVICE 45 AT VOICE COMMAND SET NOT DEFINED IN IS 101 SPECIFICATIONS eese nnne 48 VOICE MODEM COMMAND EXAMPLES 49 AT DSVD Commandqs eee 56 V 25ter AT 57 V 80 AT Commands 59 AT Commands for Homologation Testing and Debugging Rer 61 CONFIGURING FOR DIFFERENT COUNTRIES 63 COUNTRY SPECIFIC HOMOLOGATION PARAMETERS 69 COUNTRY SPECIFIC S REGISTER DEFAULTS 84 CHANGING THE DTMF DiAL SPEED DEFAULT VALUE 86 Introduction This document specifies the Lucent Technologies MTC AT Command Set for the host based controller modem products Note th
56. mmands Command Description AT SSE OF Simulates virtual offhook event AT SSE ON Simulates virtual onhook event AT SSE AC Enables auto call whereby the voice channel is established as soon as the connection is made with the DSVD modem There is a single request for each new call Both sides can be programmed in this mode and the voice channel will be activated by one of the modems The voice channel will stay enabled until the line is dropped AT SSE AA Enables Auto Answer mode allowing the modem to always accept and answer the voice channel request AT SSE AM Enables Auto Multiple Call mode allowing a new connection every 30 seconds with a 5 second delay between calls AT SSE SF Disables silence detection for the modem AT SSE FN Sets full duplex mode with headset as default Disables full duplex mode with speakerphone reverting to half duplex mode as default AT SSE VGT Sets speakerphone gain level Displays range available Displays current setting AT SSE VGR Sets microphone gain level Displays range available Displays current setting Standard AT Commands AT SSE 0 Disables DSVD 1 Enables DSVD Displays range available Displays current setting ATD Initiates transition from voice to DSVD Hang up modem Used in conjunction with ATH command for hook control 0 the DOE will hang up the line when it does not detect a carrier 2 the DCE will remain offhook when it detects no carrier to allow th
57. n values Version 1 0 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands for Homologation Testing and Debugging This section lists the homologation testing and debugging commands and homologation parameter values for different countries Table 11 The Homologation Testing and Debugging Commands Name _ Description Commens Test Commands AT T lt val gt o 02 05 Audio codec on 06 Audio codecoff CC 08 Shuntrelayoff 1 09 ac off hook relay on Loop VI off are in hex Read from EEPROM 20 _ AT96T20 loc lt loc gt is in hex 21 AT96T21 lt param gt param value lt param gt and param value are in hex as defined in the parameters table 22 lt gt lt gt is in hex as defined in the parameters table Generate DTMF 0 9 Generate DTMF A D FAX calling tone 1100Hz 42 V 21 channel 1 mark symbol originate 90 SetS37 3 ATBO 1 V 21 channel 1 space symbol answer 93 Set S37 3 ATBO Write to EEPROM AT96T19 loc val lt loc gt and val V 23 originate channel mark symbol 90 SetS37 2 V 23 answer channel mark symbol Set S37 2 V 23 originate channel space symbol 92 Set S37 2 V 23 answer channel space symbol Set S37 2 61 Version 1 0 Lucent Technologies Inc Host Based Controller Modem Data Addendum AT Command Set J
58. nd the user is again connected to the original call Version 1 0 Lucent Technologies Inc 49 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Voice Commands Reference continued Example 1 Initiating a speakerphone call with phone muting during conversation The speakerphone application is loaded The modem is initially idle in data mode The user then decides to pick up the phone to place a speakerphone call Picking up the phone should initiate the following chain of events Command Description AT FCLASS 8 The modem enters voice mode OK DCE responds Now in voice mode AT VGT 128 Set speaker volume to normal level OK DCE responds Volume level is set AT VLS 7 Attach internal speaker and microphone DCE off hook OK DCE responds Now in speakerphone mode Phone off hook dial tone audible speaker and microphone ready to use ATD5551234 Provide dial string for DCE to place the call OK DCE responds Number is dialed Call is placed through phone network Caller can hear ringback or busy signal from the phone being called If the person at the other end picks up the phone caller and callee converse If the speakerphone user decides to mute his speakerphone the application sends the following to mute the speakerphone Command Description AT VLS 5 Enter Mute Mode Mic is disconnected from the line leaving the speaker only OK DCE responds The mic is no longer connected to the line and the
59. nge based on OEM preferences Table 14 The Country Specific Homologation Parameters Par NA Australia Belgium Denmark Finland France Germany 4 7 4 2 64 6 6 6 60 67 60 6 8 6 4 8 6 13 5 so 8 A 8 4 43 43 37 39 43 3 3 9 255 100 30 50 28 40 50 0 b 14 18 0 40 0 10 37 20 decime 16 0 1 0 1 0 0 0 lw o o i 3 4 29 1 1 1 1 1 1 1f 1 1 1 2 2 1 1 21 1 1 1 1 1 1 1 Le 39 a 89k opo ones Op doc L3 1p we qno e qu X 4 wm qo pow qn o Version 1 0 Lucent Technologies Inc 69 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands for Homologation Testing and Debugging continued Table 15 The Country Specific Homologation Parameters continued Par NA Australia Belgium Denmark Finland France Germany CAESA D 3331 93 33 48 0 0 0 0 0 1 0 0x88 0x00 0x00 0x00 0x00 0x00 0x00 Tap oe oe oo oe oe oe oe oe oe oe om oe oe Ub Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Commands for Homologation Testing and Debugging continued Ears NA Australia Belgium Denmark Finland Frame Germany _ Ox1e 0x17 Ox1e Ox1e Ox1e Ox1e 0x17 Le ods ods ts ods ds ds OS Version 1 0 Lucent Technologies Inc 71 Host Based Controller Modem Data Addendum AT Comm
60. ns that issue the amp YO command amp YO Select stored profile 0 on power up amp Y1 ERROR Result Codes OK n 0 ERROR Otherwise amp Zn x Store Telephone Number This command is used to store up to four dialing strings for later dialing The format for the command is amp Zn stored number where n is the location 0 3 to which the number should be written The dial string may contain up to 40 characters The ATDS n command dials using the string stored in location n Result Codes OK n 0 1 2 3 ERROR Otherwise An Select Maximum MNP Block Size The modem will operate an MNP error corrected link using a maximum block size controlled by the parameter supplied MO 64 characters MM 128 characters A2 192 characters A3 256 characters default Result Codes OK n 0 1 2 3 ERROR Otherwise Bn Transmit Break to Remote In non error control mode the modem will transmit a break signal to the remote modem with a length in multiples of 100ms according to parameter specified The command works in conjunction with the K command B1 B9 Break length in 100ms units Default 3 Non error control mode only Result Codes OK If connected in data modem mode NO CARRIER If not connected or connected in fax modem mode G Modem Port Flow Control GO Modem process XON XOFF flow control characters locally default G1 Modem passes XON XOFF flow control characters Result Codes OK n 0 1 ERROR Otherwise 18 Lucent Te
61. nswering signal 58 Lucent Technologies Inc Version 1 0 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 V 80 AT Commands The chip set supports the Synchronous Access Mode and most of the commands specified in V 80 standards The commands are either AT commands issued in the command mode or in band commands transmitted in the data stream These in band commands are delimited by the hexadecimal characters EM or numerically 19h A Synchronous Access Mode AT commands Table 9 V 80 AT Commands Command Sub Values Description parameters ES lt orig_rqst gt lt ans_fbk Orig Initiate Control the manner of gt Grae Access Mode operation of the V 42 protocol when the data state is in the DCE entered ans fbk 8 Initiate Synchronous Access Mode when connection is completed and Data State is entered Read Syntax command to query the current values of the ES sub parameters The DCE shall transmit a string of information text to the DTE consisting of ES lt orig_rqst gt lt ans_fbk gt Test Syntax command to obtain all defined values of the ES sub parameters The DCE shall transmit a string of information text to the DTE consisting of ES list of supported lt orig_rgst gt values list of supported lt ans_fbk gt values 59 Version 1 0 Lucent Technologies Inc Host Based Controller Modem AT Command Set V 80 AT Commands continued Table 10 V 8
62. ode In this mode the DTE selects the analog source and sink through the VLS command the selections can be microphone and speaker GSTN The DCE is not required to perform any Acoustic Echo Cancellation nor any Line Echo Cancellation Version 1 0 Lucent Technologies Inc 45 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Voice Commands Reference continued AT VLS Analog Source Destination Selection and DTMF Tone Reporting Requests for the modem s DTMF Tone reporting capabilities are made using this command For each system configuration in voice mode i e speakerphone and answering machine the modem reports the capabilities that are enabled for the configuration Also for each configuration the modem indicates tone reporting capabilities for each of the three different voice states voice transmit data voice receive data and voice command state voice idle TAD supports each of the following IS 101 analog source destination configurations Label Description DCE on hook local phone connected to Telco DCE off hook DCE connected to Telco DCE off hook local phone connected to DCE DCE off hook local phone connected to Telco DCE to local phone Speaker connected to DCE DCE on hook playback messages Speaker connected to DCE DCE off hook call screening Microphone connected to DCE DCE on hook record greeting Microphone and speaker connected DCE off hook speakerphone o O
63. ommand selects DSR action amp 50 DSR always ON default amp S1 DSR comes on when establishing a connection and goes off when the connection ends Result Codes OK n 0 1 ERROR Otherwise amp Tn Self Test Commands This command allows the user to perform diagnostic tests on the modem These tests can help to isolate problems when experiencing periodic data loss or random errors amp TO Abort Stops any test in progress amp T1 Local analog loop This test verifies modem operation as well as the connection between the modem and computer Any data entered at the local DTE is modulated then demodulated and returned to the local DTE To work properly the modem must be off line amp T3 Local digital loopback test amp T6 Remote digital loopback test This test can verify the integrity of the local modem the communications link and the remote modem Any data entered at the local DTE is sent to and returned from the remote modem To work properly the modems must be on line with error control disabled Result Codes OK n 0 CONNECT n 1 3 6 ERROR Otherwise 16 Lucent Technologies Inc Version 1 0 Data Addendum June 15 1998 AT Command Reference continued amp V View Active Configuration and Stored Profile This command is used to display the active profiles For example Option Selection Comm Standard Bell CommandCharEcho Enabled Speaker Volume Medium Speaker Control OnUntilCarrier Result Codes Enabled Di
64. ommand sets the DCE s value for the DTE DCE inactivity timer The units are in one seconds AT VIT Returns the current value of the timer AT VIT Queries the DCE for the range of supported values AT VNH lt Hook gt Automatic Hang up Control This command causes the DCE to enable or disable automatic hangups in the data and facsimile modes See the IS 101 specification for the detailed description of this command and its interaction with the FCLASS and ATH commands hook 0 The DCE retains automatic hangups which is the way in the other non voice modes hook 2 The DCE disables automatic hangups in the other non voice modes The DTE only performs a logical hangup returns the OK result code AT VNH Returns the current value AT VNH Returns the supported values 44 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Voice Commands Reference continued AT Commands Speakerphone Operation AT VLS lt label gt Analog Source Destination Selection This is a general purpose analog source destination command that attaches various analog devices to the system in voice mode Speakerphone on AT VLS 7 Attach internal speaker and internal microphone DCE off hook Speakerphone off AT VLS 0 Detach analog devices DCE on hook Microphone Control Phone Muting AT VLS 5 disables detaches microphone analog source leaving speaker only when speakerp
65. on should wait for the OK before sending next command Command Description AT FCLASS 8 Put the modem into voice mode OK DCE responds The modem is now in voice mode AT VGT 128 Set the speaker volume to normal level OK DCE responds The volume level is set AT VLS 7 Start the speakerphone by attaching the internal speaker and mic to the line DCE off hook OK DCE responds Speakerphone mode is active The phone is off hook dial tone is audible and the speaker and mic are ready to use The caller can hear ringback or busy signal from the phone being called If the person at the other end picks up the caller and callee converse The conversation ends and the speakerphone user hangs up Command Description ATH The application tells the modem to terminate the call with a standard AT command OK DCE responds The speakerphone is now on hook The speaker and microphone have been detached from the system and the modem is now in data mode FCLASS 0 Version 1 0 Lucent Technologies Inc 51 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Voice Commands Reference continued Example 3 Answering a speakerphone call The speakerphone application is loaded The modem is initially idle in data mode In this mode the modem is always screening for incoming calls Command Description RING DCE reports ringing from remote station The user decides to pick up the phone which should initiate the fol
66. one off hook Ring Silence timer has expired X gt End of voice data transmission CAS tone detected ge JgI2oooon lt DLE gt Codes Sent to DCE For simple actions in voice mode the modem may send any of the following DLE shielded event codes in ASCII to the DTE as appropriate lt DLE gt Shielded Codes Sent from DTE to DCE Code Character Description u Bump up the volume by 1 dB d Bump down the volume by 1 dB lt ETX gt End of voice data transmission End receive data state Version 1 0 Lucent Technologies Inc 47 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Voice Commands Reference continued AT Voice Command Set Not Defined In IS 101 Specifications S32 Synthetic Ring Volume This command will provide a synthetic ring volume in dB with an implied minus sign The default 10 S33 Synthetic Ring Frequency This command will provide a synthetic ring frequency The valid values are 0 5 with 0 disabled and 1 5 five varying ring frequencies The default 0 AT VTS This does a flash hook 48 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Voice Commands Reference continued Voice Modem Command Examples The application issues AT commands to request actions by the modem and the modem responds with standard TIA 602 result codes to tell the application that the requested action has been completed
67. p Q5 W4 42 or disconnect The modem attempts to connect in V 42 error control mode If this fails the call will be disconnected W5 V 42 MNP or buffer same as N3 W7 V 42 MNP or buffer same as N3 Result Codes OK n20 1 2 3 45 7 ERROR Otherwise Q Local Flow Control Selection GO Disable flow control Same as amp KO Q1 XON XOFF software flow control Same as amp K4 Q2 CTS only flow control This is not supported and the response is ERROR Q3 RTS CTS to DTE default Same as amp K3 Result Codes OK n 0 1 3 ERROR Otherwise Rn Ring indicator signal off after the telephone call is answered Compatibility command RO ring indicator signal is off after the telephone call is answered Result Codes OK n 0 ERROR Otherwise 20 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Command Reference continued Tn Inactivity Timer This command specifies the length of time in minutes that the modem will wait before disconnecting when no data is sent or received A setting of zero disables the timer Alternatively this timer may be specified in register S30 This function is only applicable to buffer mode MO Inactivity timer disabled default Result Codes OK n20 255 ERROR Otherwise Vn Protocol Result Code WO Disable protocol result code appended to DCE speed W1 Enable protocol result code appended to DCE speed default
68. plained next 1 V 90 56K V 34 or V 32 depending on the type of connection negotiated Initial upstream rate Initial downstream rate Current or final upstream rate Current or final downstream rate LAPM or MNP or None depending on V 42 negotiation V42bis or MNP or None depending on V 42 negotiation Mean square error of received downstream signal Difference between received constellation point and reference decision point This is a dimensionless decimal number only valid during a call Higher numbers are worse There s no absolute threshold of goodness it depends on the downstream data rate The number varies during a call so it can be useful to sample it a few times 9 The received signal power although labeled dBm is only a relative measure for comparing calls to from different locations Only valid during a call 10 Upstream transmit signal power 11 Round trip delay in milliseconds 12 Echo levels are valid for V 34 only 13 Echo levels are valid for V 34 only 14 Number of LAPM frames sent upstream during this call Count wraps around at 65535 15 Number of REJ frames received at the analog client modem 16 Number of LAPM frames received by client during this call Count wraps around at 65535 17 Number of frames received in error by the client 18 Number of retrains or rate renegotiations requested by this modem 19 Number of retrains or rate renegotiations requested by remote modem Version 1 0 Lucent
69. rence S Registers continued S43 Auto Mode default 1 range 0 1 This command is used for testing and debugging only V 32bis startup auto mode operation disabled 0 auto mode disabled 1 enabled Range 0 1 Default 1 S48 LAPM Error Control and Feature Negotiation default 7 S48 7 Negotiation enabled S48 128 Negotiation disabled forces immediate fallback options specified in S36 The following chart lists the S36 and S48 configuration settings necessary to negotiate certain types of connections 536 1 3 LAPM or async async S36 5 7 LAPM MNP or async S89 Timer to Control Sleep Mode This command displays the number of seconds of inactivity no characters sent from the DTE no RING in the off line command state before the modem places itself into standby mode A value of zero prevents standby mode Note If a number between 1 and 4 is entered for this register it will set the value to 5 and the inactivity before standby will be 5 seconds This is done for compatibility with previous products which allowed time outs down to 1 s Range 0 5 65 Default 10 S90 Read only Local Phone This register tells the status of the Local Phone It is read only 0 on hook 1 off hook 91 Line Transmit Level This register is effective only for Japan It specifies the line transmit level in dBm with an implied minus sign Range 6 15 Default 15 Units 1 dB 108 Network Codec S108 22 u Law 108 33 A
70. s in Europe MICROELECTRONICS GROUP DATALINE Tel 44 1734 324 299 FAX 44 1734 328 148 or technical inquiries in Europe CENTRAL EUROPE 49 89 95086 0 Munich NORTHERN EUROPE 44 1344 865 900 Bracknell UK FRANCE 33 1 47 67 47 67 Paris SOUTHERN EUROPE 39 2 6601 1800 Milan or 34 1 807 1700 Madrid or Technical inquires in Taiwan Microelectronics Lucent Technologies Taiwan Modem Design Center 886 2 547 7016 ucent Technologies Inc reserves the right to make changes to the product s or information contained herein without notice No liability is assumed as a result of their use or application No ghts under any patent accompany the sale of any such product s or information Copyright 9 1998 Lucent Technologies Inc All Rights Reserved x Printed in U S A microelectronics group June 1998 XX XXXDMOD Lucent Technologies Bell Labs Innovations
71. s the modem to transmit data at the modulation specified by m The following table shows the values you can enter for this command and the meaning of those values FTM 72 7200 FTM 96 9600 FTM 73 7200 FTM 74 V 17 short train 7200 98 V 17 short train FRM lt m gt Receive FAX Data with lt m gt Carrier This command causes the modem to receive data at the modulation specified by lt m gt Command Option Speed bits s FRM 3 V 21 Channel 2 FRM 24 2400 FRM 48 4800 FRM 72 7200 FRM 96 9600 FRM 73 7200 FRM 74 V 17 short train 7200 FRM 97 9600 V 17 short train 38 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Fax Commands Reference continued FTH lt m gt Transmit HDLC Data with m Carrier This command causes the modem to transmit data framed in the HDLC protocol at the modulation specified by m FTH 24 48 FTH 96 FTH 73 V 17 short train FTH 97 FRH lt m gt Receive HDLC Data with lt m gt Carrier This command causes the modem to receive data framed in the HDLC protocol at the modulation specified by m Command Option Modulation Speed bits s FRH 3 V 21 Channel 2 FRH 24 2400 FRH 48 4800 FRH 72 7200 FRH 96 9600 FRH 73 7200 FRH 74 V 17 short train 7200 FRH 97 9600 V 17 short train Version 1 0 Lucent Technologies Inc 39 Host Ba
72. sed Controller Modem Data Addendum AT Command Set June 15 1998 AT Fax Commands Reference continued FPR lt n gt Select Fax port rate This command sets the DTE to DCE fax port rate DTE command DCE action Description or notes Execute IPR 0 Select automatic rate detection FPR 1 Execute IPR 2400 Set DTE DCE to 2400 bit s FPR 2 Execute IPR 4800 Set DTE DCE rate to 4800 bit s FPR 4 Execute IPR 9600 Set DTE DCE rate to 9600 bit s FPR 8 Execute 19 200 Set DTE DCE rate to 19 200 bit s FPR 10 Execute 38 400 Set DTE DCE rate to 38 400 bit s FPR 18 Execute 57 600 Set DTE DCE rate to 57 600 bit s FPR if all values listed above Report 0 1 2 4 8 10 18 DCE supports 2400 4800 9600 19 200 are supported 38 400 and 57 600 bit s FPR all other IPR settings Report 255 255 indicates invalid setting 40 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Fax Commands Reference continued FAA Adaptive answer AT Command Set A Service Class 1 Facsimile DCE may have the ability to answer as a data modem DCE or as a Facsimile DCE It also may be able to adaptively change from Class 1 facsimile mode FCLASS 1 0 to data modem operation FCLASS 0 in response to the incoming call The FAA parameter controls this feature Write syntax FAA lt value gt Valid values 0 1 De
73. sending result codes to the computer Result Codes OK n 0 1 ERROR Otherwise T Select Tone Dialing This command instructs the modem to send DTMF tones while dialing Dialed digits are tone dialed until a P command or dial modifier is received This is the default setting Vn DCE Response Format This command controls whether result codes including call progress and negotiation progress messages are displayed as words or their numeric equivalents For the result code see table 4 VO Displays result codes as digits V1 Displays result codes as text default Result Codes OK n 0 1 ERROR Otherwise es I Result Code Format numeric code CR CR lt LF gt verbose code CR lt LF gt Version 1 0 Lucent Technologies Inc 11 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Command Reference continued Wn Result Code Option Wo CONNECT result code reports DTE receive speed Disable protocol result codes W1 CONNECT result code reports DTE receive speed Enable protocol result codes We CONNECT result code reports DCE receive speed Enable protocol result codes default Result Codes OK n 0 1 2 ERROR Otherwise Xn Result Code Selection and Call Progress Monitoring This command enables tone detection options used in the dialing process As these functions are chosen the modem chip set s result codes are also affected Therefore this command
74. speakerphone is mute After a while the speakerphone user decides to turn the mic back on mute off This is done when the application issues the following command Command Description AT VLS 7 No Mute Microphone is reattached to system along with speaker OK DCE responds Speakerphone with both mic and speaker is operational Conversation ends and user hangs up Command Description ATH Application tells the modem to terminate the call with standard AT command OK DCE responds Speakerphone is now on hook The speaker and mic have been detached from the system and the modem is now in data mode FCLASS 0 50 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Voice Commands Reference continued Example 2 Initiating a stored number speakerphone call The speakerphone application is loaded The modem is initially idle in data mode The user then decides to place a speakerphone call either by entering the number without going off hook first or selecting a number previously stored in the application When the user tells the application to dial the following events occur Command Description ATD5551234 Provide a dial string appended with a semicolon for the DCE to place the call and go to command mode OK The DCE responds and the number is dialed The call is placed through the phone network in data mode The modem stays in command mode and the applicati
75. st Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands Reference S Registers continued S4 Response Formatting Character user defined This register determines the ASCII value used as the line feed character The modem uses a line feed character in command mode when it responds to the computer Range 0 127 ASCII decimal Default 10 line feed Units ASCII Note This register value is not stored with amp W command S5 Command Line Editing Character user defined This register sets the character recognized as a backspace and pertains to asynchronous only The modem will not recognize the backspace character if it is set to a value that is greater than 32 ASCII This character can be used to edit a command line When the echo command is enabled the modem echoes back to the local DTE the backspace character an ASCII space character and a second backspace character This means a total of three characters are transmitted each time the modem processes the backspace character Range 0 127 ASCII decimal Default 8 backspace Units ASCII Note This register value is not stored with amp W command S6 Wait Before Dialing This register sets the length of time in seconds that the modem must wait pause after going off hook before dialing the first digit of the telephone number The modem always pauses for a minimum of two seconds even if the value of S6 is less that two seconds The wait for dial tone
76. sters continued SReg Netherlands NewZeal Norway Spain Sweden so oo oo oo oo oo oo s6 o oo oo oo os ou sio 02 oa os o oa oa sii os o o or ox o so ooo o oo oo 00 oo Changing this value with the ATS command is not permitted Table 16 Country Specific Defaults for S Registers continued Changing this value with the ATS command is not permitted 84 Lucent Technologies Inc Version 1 0 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands for Homologation Testing and Debugging continued Table 16 Country Specific Defaults for S Registers continued EPen _Melsysin_ _Sinoapore_ _ M Thailand Portugal Changing this value with the ATS command is not permitted Table 16 Country Specific Defaults for S Registers continued Lucent Technologies Inc Version 1 0 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands for Homologation Testing and Debugging continued Changing the DTMF Dial Speed Default Value To change the DTMF dial speed default value follow these steps 1 2 3 Set parit 5 Min DTMF dial speed and pars 6 Max DTMF dial speed to the required DTMF dial speed with the 21 command Issue an ATZ command Issue an ATS11 command to display the new value The following example shows how to set the current
77. ted ATD ATX permitted us 550 Hz 2 1800 Hz Bell modes permitted flag 0 not permitted ATB 1 permitted Off hook ATH1 restrictions 0 no restrictions 1 restricted by S7 duration 2 not allowed 25 Shunt relay on time during off hook in 0 255 multiples of 10 ms 0 shunt relay disabled D O I 0 hook flash not allowed Uc MID 28 Max blind dial pause in seconds 0 65 29 Min no answer time outin seconds 0 65 CST 2a Max no answer tme outin seconds 2b Min dial pause time in seconds 0 65 2 Max dial pause time in seconds Min no carrier disconnect time in multiples of 1 65 10 100 ms Max no carrier disconnect time in multiples of 100 ms Transmit level in dB with implied minus sign 0 255 ATD O Dial modifier validation 0 if an invalid dial modifier is found treat the entire dial string as null no digits dialed 1 ignore invalid dial modifiers 66 Lucent Technologies Inc Version 1 0 Data Addendum Host Based Controller Modem June 15 1998 AT Command Set AT Commands for Homologation Testing and Debugging continued Table 13 The Homologation Parameters continued Par Parameter Description Range Reference TAD receive gain 0 255 Half full wave ring detection 0 halfwave 1 fullwave gan 33 Number of failed attempts allowed in first stage 0 255 ATD delayed dialing 34 Number of all failed attempts to any number 0 255
78. tinued amp Kn Local Flow Control Selection amp K0 Disable flow control amp K1 Reserved amp K2 Reserved amp K3 Enable RTS CTS hardware flow control default amp K4 Enable XON XOFF flow control OK n 0 3 4 ERROR Otherwise amp Mn Asynchronous Communications Mode amp Asynchronous mode default amp M1 Reserved amp M2 Reserved amp M3 Reserved amp M4 Reserved Result Codes OK n 0 ERROR Otherwise amp Pn Pulse Dial Make to Break Ratio Selection This Command is effective only for Japan amp PO 39 61 make break ratio 10PPS amp P1 33 67 make break ratio 10PPS default amp P2 33 67 make break ratio 20PPS Result Codes OK 0 1 2 ERROR Otherwise amp Qn Asynchronous Communications Mode amp QO Asynchronous Mode buffered Same as ANO amp Q5 Error Control Mode buffered default Same as amp Q6 Asynchronous Mode buffered Same as NO amp Q8 MNP error control mode If an MNP error control protocol is not established the modem will fallback according to the current user setting in S36 amp Q9 V 42 or MNP error control mode If neither error control protocol is established the modem will fallback according to the current user setting in S36 Result Codes OK n20 5 6 8 9 ERROR Otherwise Version 1 0 Lucent Technologies Inc 15 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Command Reference continued amp Sn Data Set Ready DSR Option This c
79. une 15 1998 AT Commands for Homologation Testing and Debugging continued Table 11 The Homologation Testing and Debugging Commands continued Name Description Comments I UL V 22bis V 34 2400 originate Sig naling V 32 V 34 4800 answer scm V 32bis V 34 12000 originate signaling Set 537 10 V 32bis V 34 12000 answer signaling Set S37 10 V 32bis V 34 14400 answer signaling 9 Set S37 11 V 32ter V 34 16800 originate signaling Set S37 12 V 32ter V 34 16800 answer signaling 91 Set S37 12 90 V 32ter V 34 19200 answer signaling 91 Set S37 13 V 21 Channel 2 mark symbol a Set S37 3 V 29 7200 signaling 78 V 34 24000 originate signaling SetS37 15 V 34 28800 answer signaling Set S37 17 V 34bis 31200 originate signaling Set S37 18 V 34bis 31200 answer signaling 91 Set S37 18 V 34bis 33600 originate signaling Set S37 19 V 34bis 33600 answer signaling Set S37 19 The default is V 34 with register S28 1 To disable set S28 0 The following example shows how to use the V 22bis 2400 originate signaling homologation test command S28 0 37 6 AT T90 62 Lucent Technologies Inc Version 1 0 Data Addendum June 15 1998 AT Commands for Homologation Testing and Debugging continued Configuring for Different Countries To configure for a specific country execute the following AT commands
80. urn to on chip DSP RAM Write to read from DSP RAM location 125 Load K56flex image to external DSP RAM Speaker codec loopback Unimodem diagnostics Table 3 The S Register Summary Register Default Description S0 o Automatic answer ring number s o Ringcounter S5 8 Command line editing character 912 Escape guard time 514 8 Generalbitmappedoptionsstatus S80 O Inactivity timer EM S36 S97 Data calling tone o S35 o S36 Negotiation fallback 37 S registers 42 and 43 are for test and debugging purposes only Version 1 0 Lucent Technologies Inc 3 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Command Summary continued Table 4 The Result Code Summary Result Code Numeric Descripton CONNECT n Meemcomeedtoins NO CARRIER 3 Modem lost carrier signal or does not detect carrier signal or does not detect answer tone NODIALTONE 6 Nodialtoedeleced o NOANSWER 8 Remote end never answered CONNECT 16800 EC 86 Connection at 16800 bits O CONNECT 33600 60 Connection at 33600 bits BLACKLISTED 89 Dialed number is blacklisted EDU EMEN Connection at 38000 bits K56flex a Connection at 42000 pits K56flex mode Connection at 46000 DIS K56flex mode Connection at 50000 DIS K56flex mode CONNECT 52000 EC 80 Conn
81. ve Carrier symbol rate 0 8000 0 FAO Transmit Carrier freguency 0 4000 o 0 FAO Receive Carrier frequency 0 4000 BEEN 0 FA00 Initial transmit carrier data rate 0 64000 4 digits 0 FAO00 Initial receive carrier data rate 0 64000 28 2F et Reseved o c o y Temporary carrier loss event count se 2 digits Carrier Rate re negotiation event count Carrier Retrains requested a X Carrier Retrain requests granted a X O 4 digits 0 FA00 Final transmit carrier rate X O O 0 FA00 Final receive carrier rate O 1 1 x X sar CC Resevwed I Table 7 Protocol Negotiation Result Note 7 1 Tables are numbered separately within this UD section to be consistent with the Microsoft specification Notes refer to notes in the Microsoft specification Version 1 0 Lucent Technologies Inc 25 Host Based Modem Data Addendum AT Command Set June 15 1998 Test and Debug AT Commands continued 464F f Reseved y Transmit flow control 0 off 1 DC1 DC3 2 V 24 ckt 106 133 Receive flow control 0 off 1 DC1 DC3 2 V 24 ckt 106 133 53 8digts O FFFFFFFF Received characters sent to DTE Note 8 h O Z o 54 8998 O FFFF Transmit characters lost data overrun errors from DTE Note9 Cd TENERA 0 200 Compression dictionary size Note 7 rz e 55 8digts 0 FFFF___ Received chara
82. ve nominal level lt level gt lt value less than 128 gt Decrease volume below nominal level AT VGT Returns current value AT VGT Returns range of supported values 43 Version 1 0 Lucent Technologies Inc Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Voice Commands Reference continued AT VGR lt gain gt Receive Gain Selection This command will enable the receive microphone gain control gain is 0 255 the only useful range is 121 134 lt gain gt 128 nominal level for receive gain from microphone gain value greater than 128 increase gain above nominal level gain value less than 128 decrease gain below nominal level TAD mode This command may be used in TAD local recording to control the recording level from the microphone Speakerphone mode This command may be used to control the gain to the remote caller AT VGR Returns current value of receive gain AT VGR Returns range of supported gain values AT VEM lt mask gt Event Reporting and Masking The DTE can use this command to disable an event report regardless of the DCE state or of the analog signal source or destination configuration Mask is Bits 0 33 i e FFFFFFFFC See the 15 101 specification for defined bit values AT VEM Returns the current values of the mask AT VEM Queries the DCE for the range of supported service level events AT VIT lt Timer gt DTE DCE Inactivity Timer This c
83. y There are five choices with 0 meaning disabled Range 0 5 Default 0 S35 Data Calling Tone Data Calling Tone is a tone of certain frequency and cadence as specified in V 25 which allows remote Data FAX Voice discrimination The frequency is 1300 Hz with a cadence of 5 s on and 2 s off 0 disabled 1 enabled Range 0 1 Default 0 S37 Dial Line Rate default 0 This register sets the maximum line data rate In K56flex and V 90 mode S37 controls the upstream V 34 rate 37 20 auto rate 537 1 reserved 537 2 1200 75 bit s V 23 537 3 300 bit s 37 4 reserved 537 5 1200 bit s S37 6 2400 bit s S37 7 4800 bit s S37 8 7200 bit s 537 9 9600 bit s 537 10 12000 bit s 537 11 14400 bit s S37 12 16800 bit s 37 13 19200 bit s 537 14 21600 bit s 37 15 24000 bit s 537 16 26400 bit s 537 17 28800 bit s 37 18 31200 bit s 537 19 33600 bit s Version 1 0 Lucent Technologies Inc 33 Host Based Controller Modem Data Addendum AT Command Set June 15 1998 AT Commands Reference S Registers continued S38 K56flex Downstream Rate To force a particular K56flex downstream rate use S register S38 S38 0 disables K56flex and may allow a more reliable V 34 connection S38 1 default allows the modem to select the downstream rate automatically Other values of S38 force the downstream rate with fallback to V 34 if unsuccessful at the configured rate S38 0 Disable K56flex S38 1 Automatic rate sel
84. y one of the following events Power off or D1 or D3 state entered Hard reset e g negate DTR with amp D3 set reset button Soft reset ATZ or AT amp F ATD command issued ATA command issued Automatic answer e g set register S0 gt 0 and ring detected These results are NOT cleared by changing DTR V 24 circuit 108 2 if amp DO amp D1 or amp D2 In response to this command the modem reports one or more lines of information text as defined below Information text format is defined in ITU V 25ter each line is preceded by a lt CR gt lt LF gt pair and terminated by lt CR gt lt LF gt Note as per V 25ter CR and LF characters may be changed by writing new values to the contents of registers S2 and S3 respectively DIPYN 24 Version 1 0 Lucent Technologies Inc Data Addendum Host Based Controller Modem June 15 1998 AT Command Set Test and Debug AT Commands continued The modem may generate a single line or multiple lines based on modem capabilities and call results followed by a standard OK final result code For example if call setup failed only that result is useful Each information text line shall be formatted as follows including one or more key value pairs DIAG token key value key value key value gt DIAG _ 5 characters hex 44 49 41 47 20 lt left angle bracket less than sign hex 3C token unique 32 bit hexadecimal string 2A4D3263 hex 32 41 34 44 33 32 36 33 space spa

Lucent Technologies Host-Based Controller Modem AT Modem User Manual

Contents

Download Pdf Manuals

Related Search

Related Contents