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1. The information string for the test parameter conforms to the TIE EIA 592 Class 2 0 Fax 2 4 M Command Description 2 4 1 Plus Message Control Group MC 2 4 1 1 MCA Plus Message Control Auto answer Supported in 56K Professional Message Modem and in 56K Message Modem as of code rev 14 8 1 and above Function Enable disable the M Auto answer feature This command set a permanent state of the modem ATZ or AT amp Fn will not have any effect on the value of this command Syntax MCA lt iPar gt or MCA Parameter 0 Disable the M Auto answer feature 1 Enable the M Auto answer feature Report the valid range of command parameters Information String 0 1 for test parameter None for 0 and 1 parameters 2 4 1 2 MCA Plus Message Control Auto answer Query Supported in 56K Professional Message Modem and in 56K Message Modem as of code rev 14 8 1 and above Function Report enabled disabled status of the M Auto answer feature Syntax MCA Parameter None Information String 0 M Auto answer feature disabled 1 M Auto answer feature enabled 2 4 1 3 MCC Plus Message Control Clock Function Reset M clock to 0 days 0 hours 0 minutes 0 seconds The M Clock measures time up to 255 days After modem s power up the M clock is set to 255 days 255 hours 255 minutes 255 seconds The M Clock does not roll over it saturates at 254 days 24 hours 0 minutes 0 seconds instead The M clock has t2. 3Com U S Robotics 30 Bom Self Mode Technical Reference 3 March 1999 1 All buttons enabled 3Com U S Robotics 31
3. Commands 2 4 M Command Description 2 4 1 Plus Message Control Group MC 2 4 1 1 MCA Plus Message Control Auto answer 2 4 1 2 MCA Plus Message Control Auto answer Query 2 4 1 3 MCC Plus Message Control Clock 2 4 1 4 Plus Message Control Clock Use 2 4 1 5 MCC Plus Message Control Clock Query 2 4 1 6 MCD Plus Message Control Dialup Retrieval 2 4 1 7 Plus Message Control Dialup Retrieval Use 2 4 1 8 MCD Plus Message Control Dialup Retrieval Query 2 4 1 9 MCF Plus Message Control Fax Reception 2 4 1 10 MCF Plus Message Control Fax Reception Query 2 4 1 11 MCG Plus Message Control Acoustic Ring 2 4 1 12 MCG Plus Message Control Acoustic Ring Query 2 4 1 13 MCL Plus Message Control Local 2 4 1 14 MCL Plus Message Control Local Query 2 4 1 15 MCM Plus Message Control Monitor 2 4 1 16 MCM Plus Message Control Monitor Query 2 4 1 17 MCP Plus Message Control Password 2 4 1 18 MCP Plus Message Password Query 2 4 1 19 MCR Plus Message Ring Setup 2 4 1 20 MCR Plus Message Ring Setup Query 2 4 1 21 MCS Plus Message Control Switch 2 4 1 22 MCS Plus Message Control Switch Query 2 4 1 23 MCT Plus Message tollsaver 2 4 1 24 MCT Plus Message Tollsaver Query 2 4 1 25 MCV Plus Message Control Voice Reception 2 4 1 26 MCV Plus Message Control Voice Reception Query 2 4 1 27 MCW Plus Message Control Write Settings 2 4 2 Plus Message Erase Group ME 2 4 2 1 MEA Plus Message Erase All 2 4 2 2 MEM Plus Message Erase Messages
4. DTE application Syntax MSR lt iPar gt Parameter 0 Report general status of the M Memory The data reported are total M Memory space percentage of used M Memory space number of voice Unreleased Messages number of voice Stored Messages number of fax Unreleased Messages number of fax Stored Messages presence of M Outgoing Message and M Memory Full Messages 3Com U S Robotics 17 Bom Self Mode Technical Reference 3 March 1999 1to 255 Report message status of the specified Stored Message The data reported are message index message type voice message duration or fax size in pages message M status flags message reception status message time stamp message Caller ID page and address of message beginning in the M Memory and the checksum of the information string Information String String of eight ASCII coded 3 digit numbers separated by commas for the parameter 0 lt M Memory Size gt 002 for 2 Mbytes of M Memory Separator ASCII 02Ch lt of used space 000 to 100 for percentage of used M Memory i Separator ASCII 02Ch lt of stored voice messages gt 000 to 255 Separator ASCII 02Ch it of unreleased voice messages 000 to 255 Separator ASCII 02Ch lt of stored fax messages gt 000 to 255 Separator ASCII 02Ch it of unreleased fax messages 000 to 255 Separator ASCII 02Ch lt Presence of M Outgoing Message gt 000 for not present 001 for present Sep
5. Fax ID Previous Message Sections in Header Field Message reference number Type of message data Information related to specific message type Retrieval related management flags Status of message reception Time expired between last M clock reset and message reception Fax ID of the received fax message sender Address of the beginning of previous message 20 bytes 0 1 254 255 5 0 1 2 3 4 254 255 Type fax 0 1 254 255 Type voice 0 1 254 255 0 254 255 0 23 255 0 59 255 Type Fax Type voice Byte 5 Byte 6 amp 7 Parameter Purpose Size Values Name Message Index Message Type Invalid Valid Not set Undetermined Fax Voice Data Undetermined Not set Number of pages Undetermined Valid Not set Length in seconds Undetermined Valid Not set Unreleased Released Unchecked Checked Not used OK ERROR Code Not set Number of days uninitialized Number of hours uninitialized Number of minutes uninitialized The string reported by the FTT Class 2 0 Fax response String of 20 ASCII characters 020h space 6 bit page number 15 bit address 25 A Self Mode Technical Reference 3 March 1999 31 Next Message Address of the Byte 8 6 bit page number 32 beginning of Byte 9 amp 15 bit address 33 following 10 message Message size can be determined by the subtracting the address of the Next Message Parameter from the value of
6. Memory page is transferred followed by the OK response qualifier MTP command can be used to obtain the data from the two User Sector pages 0 and 1 that contain the M Dialup Password M Fax ID String M Outgoing Message and M Memory Full Message that is not part of the data transmitted by the MTM command MTP lt iPar gt 0 63 Number of the M Memory page from which the data should be transferred ASCII coded upper nibble of a byte long checksum of 32kB of page n data ASCII coded lower nibble of a byte long checksum of 32kB of page n data lt 32kB of page n data gt 2 4 6 Plus Message Voice Group MV 2 4 6 1 MVC Function Syntax Parameter Information String 2 4 6 2 MVD Function Syntax Parameter Information String 2 4 6 3 MVD Function Syntax Plus Message Voice Capture Outgoing Message Capture the subsequent data stream from the DTE and store it in the M Flash Memory either as the M Outgoing Message or as the M Memory Full Message The data stream has to be terminated by the DLE ETX sequence The data stream has to be smaller than the storage space allocated in the M Memory After the MVC lt iPar gt command is issued the DTE shall wait for a CONNECT response from the M Modem before the data transfer is commenced If no data is received within 5 seconds after the CONNECT response was generated or if the data stream is interrupted for more than 5 seconds for rea
7. printable ASCII characters within Report the range of valid characters for the M Fax ID String formatted as in TIA EIA 592 Class 2 0 Fax Here for up to twenty printable ASCII characters the response string is 20 Jy 20 60 7B 7 for test parameter ASCII characters from 020h to 060h and from 07Bh to 07Eh allowed in the Fax ID String None for lt M Fax ID String gt Plus Message Fax ID String Query Report the current setting of the local fax ID string MFI None 3Com U S Robotics 15 Bom Self Mode Technical Reference 3 March 1999 Information String lt M Fax ID String gt 2 4 3 3 MFF Plus Memory Fax Forwarding Options Only supported in 56K Professional Message Modem with code revision 14 2 7 and above Only supported in 56K Message Modem with code revision 14 8 1 and above Function This command changes bitmapped register s settings to turn on and off following features in fax forwarding Syntax MFF or MFF lt iPar gt or MFF Bit Information Bit 0 Enables disables fax forwarding feature 0 disables the fax forwarding feature enables the fax forwarding feature Bit 1 Enables disables blind dialing 0 disables the blind dialing enables the blind dialing Bit 2 Enables disables speaker during the fax forwarding option 0 speaker is turned on during the fax forwarding mode speaker is turned off during the fax forwarding mode Bit3to 15 Undefi
8. the Next Message Parameter decreased by two This does not include the length of Header Field 4 2 Data Field The data field contains captured data which was generated by Modem Software during message reception The size of the data field is limited only by the available space in the M Memory The captured data format for each fax page within fax messages is formatted according to the ITU T T 4 recommendation Refer to this recommendation for more information The captured data format for voice messages is formatted according to the ETSI 06 10 GSM specification The GSM data stream is terminated by the DLE ETX End of Stream shielded command Refer to U S Robotics Voice Command Set Technical Reference for more information 3Com U S Robotics 26 Bom Self Mode Technical Reference 3 March 1999 5 Acoustic Beeps Following signals are transmitted to the phone line in various M Modes and M States to inform the caller about the results of the automatic or requested actions of the M Modem Each signal has a unique meaning Table 3 Acoustic Beeps M Record Start Voice Recording Started of a M None outgoing messages 900 Hz 960 Hz 1080 Hz M Record End Voice Recording Ended of a M outgoing message Incorrect action was performed None 200 ms 720 amp 765 Hz 1500 ms M Unchecked Voice One unchecked voice message None 200 ms Message stored in the M memory The 1260 Hz 200 ms beep is repeated for each unchecked voice mess
9. the valid range of command parameters Information String 0 1 for test parameter None for 0 and 1 parameters 2 4 1 10 MCF Plus Message Control Fax Reception Query Function Report status of the fax reception and storage in M Mode Syntax MCF Parameter None Information String 0 Fax reception and storage in M Mode disabled 1 Fax reception and storage in M Mode enabled 2 4 1 11 MCG Plus Message Control Acoustic Ring Supported in 56K Professional Message Modem only Function Enable disable and relative volume level of the Acoustic Ring Syntax MCG lt iPar gt Parameter 0 Disable Acoustic Ring feature 1 255 Enable Acoustic Ring feature with a specific volume level Report the valid range of command parameters Information String 0 255 for test parameter None for 0 to 255 parameters Note 1 The Acoustic Ring volume level is independent of any volume settings used before an incoming ring was detected In this way it is assured that the user will not accidentally miss a Acoustic Ring signal if the volume is set low before an incoming ring has been detected Note 2 For driver compatibility reasons the 56K Message Modem Second generation code rev 14 8 1 and up this command is recognized and will be answered by OK but has no effect 2 4 1 12 MCG Plus Message Control Acoustic Ring Query Supported in 56K Professional Message Modem only Function Report status of Acoustic Ring Syntax MC
10. 2 4 2 3 MEU Plus Message Erase User Sector 2 4 3 Plus Message Fax Group MF 2 4 3 1 MFI Plus Message Fax ID String 2 4 3 2 MFI Plus Message Fax ID String Query 2 4 3 3 MFF Plus Memory Fax Forwarding Options 2 4 3 4 MFF Plus Memory Fax Forwarding Option Inquiry 2 4 3 5 MEN Plus Memory Fax Forwarding number 3Com U S Robotics 3 March 1999 Coord dy IAA Bom Self Mode Technical Reference 3 March 1999 2 4 3 6 MEN Plus Memory Fax Forwarding Number Inquiry 17 2 4 4 Plus Message Status Group MS 17 2 4 4 1 MSI Plus Message Status Query 17 2 4 4 2 MSR Plus Message Status Report 17 2 4 5 Plus Message Transfer Group MT 20 2 4 5 1 MTM Plus Message Transfer Messages 20 2 4 5 2 MTP Plus Message Transfer Page 20 2 4 6 Plus Message Voice Group MV 21 2 4 6 1 MVC Plus Message Voice Capture Outgoing Message 21 2 4 6 2 MVD Plus Message Voice Duration Message 21 2 4 6 3 MVD Plus Message Voice Duration Message Query 21 2 4 6 4 MVP Plus Message Voice Play Message 22 2 4 6 5 MVR Plus Message Voice Record Message 22 3 FLASH MEMORY 23 3 1 User Sector 23 3 2 Mirror Sector 23 3 3 Data Sectors 24 4 FORMAT OF MESSAGES STORED IN THE M MEMORY 25 4 1 Header Field 25 4 2 Data Field 26 5 ACOUSTIC BEEPS 27 6 M LED DISPLAY 28 6 1 Sportster Message Plus 56K Message First Generation 28 6 2 56K Message Second Generation 28 6 2 1 MEM 28 6 2 2 MSG 28 6 3 56K Professional Message 28 6 3 1 PWR MEM 28 6 3 2 MSG 28
11. 255 The low address byte element of message starting address Separator ASCII 02Ch lt Checksum gt 000 to 255 The simple byte wide checksum coded as ASCII 3 digit decimal number of all ASCII characters in the response string from and including the first character of lt Index gt to and including the Separator after lt Address High gt Example The string 003 001 003 252 000 001 015 030 847 676 7010 005 089 145 230 is for message number 3 which is a fax with 3 pages that has been already transferred to the DTE that was correctly received 1 day 15 hours and 30 minutes after the latest M Clock reset MCC from the station with Fax ID 847 676 7010 In the memory dump MTM the message starts at location OD991h after all checksum bytes have been discarded memory dump starts with page 4 The checksum of the response string is OE6h 2 4 5 Plus Message Transfer Group MT 2 4 5 1 MTM Function Syntax Parameter Information String 2 4 5 2 MTP Function Plus Message Transfer Messages Start transfer of binary data of all messages that are stored in the M Memory starting with the lowest M Memory page 4 When all binary data from the pages that contain stored messages is transferred the modem sends the response qualifier OK Before each 32kB block of binary data to be transferred two ASCII coded bytes are transferred that correspond to a simple byte long checksum of the 32kB block of binary data to b
12. 6 3 2 1 Initial behaviour 28 6 3 2 2 As of the V 90 code release SV Rev 12 2 5 and up 28 7 M BUTTONS 30 7 1 Sportster Message Plus 56K Message 30 7 2 56K Professional Message 30 7 2 1 General considerations about the buttons 30 7 332 Disabling the buttons 30 7 2 2 1 MCB Plus Message Buttons 30 7 2 2 2 MCB Plus Message Buttons Query 30 3Com U S Robotics 4 A Self Mode Technical Reference 3 March 1999 1 Self Mode Command Reference 1 1 Introduction This document specifies the new AT M commands for the 3Com U S Robotics Self mode which enables the 3Com U S Robotics modems to receive and store fax and voice messages without any support from the computer The stored messages can be later retrieved by a communication application which supports the Self Mode Feature or remotely by a dial up connection 1 2 General Consideration The Self mode is controlled only through the RS 232 interface No manual control is provided The Self mode implementation requires to add several new AT commands to the U S Robotics AT command set which consequently have to be supported by a Self mode enabled communication application So far there is no standard governing functionality of a feature that would be comparable to the Self Mode The format of the added commands has to be selected with in such a way 1 That it would reflect the proprietary nature of the Self mode 2 That it would be intuitive enough to ease the programming of th
13. 67311 or MFN T3859213 Syntax XMEN MFN lt Fax number gt or MFN Parameter none Fax forward number is uninitialised lt Fax FWD Number gt Sets up to 20 digits of forwarding number Report the valid range of digits Response 0 9 Response to the command test parameter 2 4 3 6 MFN Plus Memory Fax Forwarding Number Inquiry Only supported in 56K Professional Message Modem with code revision 14 2 7 and above Only supported in 56K Message Modem with code revision 14 8 1 and above Function Report the current fax forwarding number saved in memory Syntax MEN Parameter None Response lt Zero to twenty digits 2 4 4 Plus Message Status Group MS 2 4 4 1 MSI Plus Message Status Query Function Generate the M Information Screen in a user friendly format The MSI command is intended for displaying of the M Memory information on a terminal screen The MSI command is not intended for providing information to the M Application The M Information Screen contains the administrative information about the Stored Messages Syntax MSI Parameter None Information String String of printable ASCII characters Formatting and content is subject to change 2 4 4 2 MSR Plus Message Status Report Function Report the status information of the M Flash Memory and Stored Messages in a computer friendly format The MSR command is intended for providing the M information to the
14. Bom Self Mode Technical Reference 3 March 1999 Self mode Technical Reference for Sportster Message Plus 56K Message Modem 56K Professional Message Modem Revision 1 03 3Com U S Robotics 1 A Self Mode Technical Reference 3 March 1999 Revision History Date Description January 98 May 98 November 98 March 99 Revision 1 0 Initial release All information listed in this document are valid as of the version 11 1 18 of the modem code ATi7 Revision 1 01 Addition of specific commands for 56K Professional Message modem valid as of the version 12 1 14 initial of the modem code Addition of specific commands for 56K Professional Message modem valid as of the version 12 2 5 V 90 upgrade of the modem code Addition of specific commands for Sportster MessagePlus 56K Message modem valid as of the version 11 2 2 of the modem code Revision 1 02 Addition of Fax forwarding commands MFF MFN for 56K Professional Message modem valid as of the version 14 2 7 of the modem code Revision 1 03 Addition of new features integrated to the 56K Message modem second generation valid as of the version 14 8 1 of the modem code 3Com U S Robotics 2 Bom Self Mode Technical Reference TABLE OF CONTENTS 1 SELF MODE COMMAND REFERENCE 1 1 Introduction 1 2 General Consideration 2 THE M PLUS MESSAGE COMMAND SCHEME 2 1 New M Commands 2 2 M Command Groups 2 3 Modem Responses to M
15. G Parameter None 3Com U S Robotics 10 a Self Mode Technical Reference 3 March 1999 Information String 0 Acoustic Ring Disabled 1 255 Acoustic Ring enabled with a specific volume level selected 2 4 1 13 MCL Plus Message Control Local Function Enable disable the M Local Mode or report the range of valid MCL parameters Syntax MCL lt iPar gt or MCL Parameter 0 Disable M Local Mode 1 Enable M Local Mode Report the valid range of command parameters Information String 0 1 for test parameter if M Local Mode disabled None for 0 and 1 parameters None for test parameter if M Local Mode enabled Note There is no OK response qualifier to MCL 1 command 2 4 1 14 MCL Plus Message Control Local Query Function Report current enabled disabled status of the M Local Mode Syntax MCL Parameter None Information String 0 M Local Mode disabled 1 M Local Mode enabled Note There is no OK response qualifier to if M Local Mode enabled 2 4 1 15 MCM Plus Message Control Monitor Function Enable disable M Call Monitor Option When enabled then all audio signals present on the phone line during an answer session in the M Mode are routed to the external speaker connector in addition to all standard signal routing Syntax MCM lt iPar gt or MCM Parameter 0 Disable the M Call Monitor Option 1 Enable the M Call Monitor Option Report the valid range of command parameters Inf
16. Store the current settings of the Self Mode Feature in a non volatile memory Then if a power cycle occurs the Self Mode Feature stays enabled and the stored settings are used Syntax MCW Parameter None Information String None 3Com U S Robotics 14 Bom Self Mode Technical Reference 3 March 1999 2 4 2 Plus Message Erase Group ME 2 4 2 1 MEA Function Syntax Parameter Information String 2 4 2 MEM Function Syntax Parameter Information String 2 4 2 3 MEU Function Syntax Parameter Information String Plus Message Erase All Clear the whole M Flash Memory MEA None None Plus Message Erase Messages Clear the partition of the M Flash Memory which contains Stored Messages MEM None None Plus Message Erase User Sector Clear the partition of the M Flash Memory which contains the user configurable settings and information MEU None None 2 4 3 Plus Message Fax Group MF 2 4 3 1 MFI Function Syntax Parameter Information String 2 4 3 2 MFI Function Syntax Parameter Plus Message Fax ID String Set up and store the T 30 compliant M Fax ID String for fax reception in M Mode The M Fax ID String consists of up to 20 ASCII characters from 020h space to 060h and from 07Bh to 07Eh MFI lt M Fax ID String gt or MFI lt M Fax ID String gt Set M Fax ID String to the string of up to twenty
17. age Messages the M Memory 1260 Hz 1000 ms finished 1000 Hz 100 ms 1000 Hz 2000ms Reception cannot be received 720 amp 765 Hz 800 ms Start message 1000 Hz 400 ms 3Com U S Robotics 27 A Self Mode Technical Reference 3 March 1999 6 M LED Display 6 1 Sportster Message Plus 56K Message First Generation The ARQ FAX LED is used to indicate M Modem s functionality A dual color LED is used If Self mode is disabled LED will be red and the functionality described in the User s Manual will occur If the Self mode is enabled the LED will be green The LED will be solid green if there are no unreleased messages present in the memory The ARQ FAX LED will blink once slowly for each new message and will blink fast if the memory is full The state of the M LED always reflects the current state of the M Memory when the Self mode is enabled 6 2 56K Message Second Generation This version bring a new layout of the LED s and uses now 2 LED to indicate self mode status similarily to the 56K Professional Message 6 2 1 MEM This LED is used to indicate M Modem s functionality If Self mode is disabled LED will be off If the Self mode is enabled the LED will be steady red and will blink fast if the memory is full 6 2 2 MSG Blinks red for any new fax received and Blinks green for any new voice message received One blink per message If you received 2 voice message and 1 fax the LED will blink twice green and once
18. amount of time The user can either hang up the M Modem by DTMF digit or the M Modem hangs up automatically after a certain is period of time has expired Sportster Message Plus 56K Message 56K Professional Message 56K Message second generation indication of new messages Messages Restarts the Messages Messages Messages Aborts current Messages Voice Messages Voice Messages as of code Rev 14 2 7 Starts recording reeting Starts recording Greeting Message Message Repeat the acoustic indication Repeat the acoustic indication of of new messages count new messages count Restarts the playback of Restarts the playback of currently currently played voice message played voice message 2 4 1 8 MCD Plus Message Control Dialup Retrieval Query Function Report M Dialup Retrieval Option status Syntax MCD Parameter None Information String 0 M Dialup Retrieval Option disabled 1 M Dialup Retrieval Option enabled 3Com U S Robotics 9 a Self Mode Technical Reference 3 March 1999 2 4 1 9 MCF Plus Message Control Fax Reception Function Enable disable fax reception and storage in M Mode The M Modem receives and stores fax messages in the M Memory If this option is disabled then no fax messages are received and stored in the M Mode Syntax MCEF lt iPar gt or MCF Parameter 0 Disable the fax reception and storage in M Mode Enable the fax reception and storage in M Mode Report
19. arator ASCII 02Ch lt Presence of M Memory Full Message gt 000 for not present 001 for present Example The string 002 025 003 001 001 000 001 000 signifies a 2 MB M Memory where 25 of the available storage space is used for 3 voice messages and 1 fax message from which 1 voice message has not been transferred to the DTE yet The M Outgoing Message is recorded the M Memory Full Message is not present A string of twelve ASCII coded 3 digit numbers and one twenty ASCII character string for Fax ID separated by commas for the parameter from 1 to 255 if a message with index equal to the specified parameter exists in the M Memory lt Index gt 001 to 255 Message index Same as the MSR parameter A Separator ASCII 02Ch lt Type gt 000 001 002 003 0 for unidentified 1 for fax 2 for voice 3 for data Separator ASCII 02Ch Information 000 to 255 Number of pages for fax duration in seconds for voice Separator ASCII 02Ch Attributes 248 252 253 255 Bit mapped value 3Com U S Robotics 18 Bom Self Mode Technical Reference lt Status gt lt Day gt Hour Minute Caller ID Page Bit 0 Bit 1 Bit 2 Separator ASCII 02Ch 000 to 255 Separator ASCII 02Ch 000 to 254 255 Separator ASCII 02Ch 000 to 024 255 Separator ASCII 02Ch 000 to 059 255 Separator ASCII 02Ch Twenty ASCII characters Separator ASCII 02Ch 004 to 063 Sepa
20. command mode therefore disabling the Self mode and loads the amp F1 factory profile into the M s RAM This command SHOULD NOT be used to disable Self mode by a M aware application MCS 0 shall preferably be used for this purpose Note 2 The 56K Professional Message modem will reply OK to this command for compatibility purposes but the command will be ignored The MCA command should be used instead 2 4 1 22 MCS Plus Message Control Switch Query Supported in Sportster Message Plus and 56K Message Modem only NOT supported in 56K Message Modem with code revision 14 8 1 and above Function Report current enabled disabled status of the M Feature s functionality Syntax MCS Parameter None Information String 0 Self Mode Feature functionality disabled 1 Self Mode Feature functionality enabled 2 4 1 23 MCT Plus Message tollsaver Supported in 56K Professional_Message Modem only Function When enabled modem will answer after following number of rings if new voice message is present in flash memory Syntax MCT lt iPar gt or MCT Parameter 0 Disable the M Tollsaver 1 Enable the M Tollsaver With this option Rings to answer with tollsaver Rings to answer set by MCR 2 3Com U S Robotics 13 Bom Self Mode Technical Reference 3 March 1999 Report the valid range of command parameters Information String 0 1 for test parameter None for 0 and 1 parameters Note 1 This co
21. e transferred If after the transmission of binary data from all pages with stored messages the DTE cannot find a match between a computed checksum of any 32kB block of binary page data and the ASCII coded checksum of that 32kB block of binary data sent from the M Modem the DTE can request a retransmission of only the corrupted 32kB block of binary page data by the MTP command XMTM None If there is at least one stored message in the M Memory following string is sent ASCII coded upper nibble of a byte long checksum of following 32kB of page 4 data ASCII coded lower nibble of a byte long checksum of following 32kB of page 4 data lt 32kB of page 4 stored message data ASCII coded upper nibble of a byte long checksum of following 32kB of last page data ASCII coded lower nibble of a byte long checksum of following 32kB of last page data lt 32kB of last page with any stored message data None if there is no stored message in the M Memory Plus Message Transfer Page Start transfer of binary data stored in a specified 32kB M Flash Memory page Before the 32kB block of binary data to be transferred two ASCII coded bytes are transferred that correspond to a simple byte long checksum of the 32kB block of binary data to be 3Com U S Robotics 20 Bom Self Mode Technical Reference 3 March 1999 Syntax Parameter Information String sent Then the 32kB block of binary data from the specified M Flash
22. e application command interface 3 That it would follow currently implemented schemes for fax and voice functions 4 That it would not conflict with any commands supported by a group of manufacturers 5 That it would not conflict with any commands included in any standards and 6 That it would try to avoid above mentioned conflicts in the future The format of the Self mode commands should not use the scheme of the AT pound commands Although commands based on this scheme supporting both fax and voice based functions would be very intuitive the AT command set is not under U S Robotics control and it is an open de facto standard subject to change If the Self mode commands would be based on the prefix the danger of future conflicts with commands with different purpose is high The format of the Self mode commands should not be an extension to the F command set from the TIA EIA Class 1 and Class 2 Fax standards which are supported by virtually every fax enabled modem Although these standards are well established and settled they were not meant to support any voice based functions Also the format choices of any additional F based commands for the Self mode would be restricted due to large amount of already existing command codes for the above mentioned fax standards The format of the M commands should not be an extension to the V command set from the TIA EIA IS 101 Interim Standard for the same reasons as those against the exte
23. fter the fourth detected ring 5 Answer in M Mode after the fifth detected ring 6 Answer in M Mode after the sixth detected ring Report the valid range of command parameters Information String 3 6 for test parameter None for 3 to 6 parameters 2 4 1 20 MCR Plus Message Ring Setup Query Function Report current settings for the number of RINGs before answering in the M Mode Syntax MCR Parameter None Information String 3 Set to answer in M Mode after the third detected ring 4 Set to answer in M Mode after the fourth detected ring 3Com U S Robotics 12 Bom Self Mode Technical Reference 3 March 1999 5 Set to answer in M Mode after the fifth detected ring 6 Set to answer in M Mode after the sixth detected ring 2 4 1 21 MCS Plus Message Control Switch Supported in Sportster Message Plus and 56K Message Modem only NOT supported in 56K Message Modem with code revision 14 8 1 and above Function Enable disable the Self Mode Feature functionality Syntax MCS lt iPar gt or MCS Parameter 0 Disable the M functionality 1 Enable the M functionality Report the valid range of command parameters Information String 0 1 for test parameter None for 0 and 1 parameters Note 1 The command ATZ is also supported in M mode It is intended to let the Non M aware softwares the possibility to use the M as a regular Voice Fax modem It reverts the M to off line data
24. ions about the buttons The philosophy of the product is always to give priority to the front panel button therefore it requires a mechanism to warn the application that the button are used and in such a way that this would work for M application or non M applications This is achieved by lowering DSR and CTS at the same time Those signals will be lowered as soon as a button is pressed and will remain low as long as the action triggered by the button is not completed This behaviour applies to all buttons but the volume buttons 7 2 2 Disabling the buttons This command is primarily intended for the non M applications that provide a specific driver for the 56K Professional Message Modem to be able to disable the button while it operates or add this command to existing drivers This command has been implemented as of the V 90 capable version of the 56K Professional Message modem Supervisor revision 12 2 5 and up 7 2 2 1 MCB Plus Message Buttons Function Enable disable all but the volume buttons Syntax MCB lt iPar gt or MCB Parameter 0 disables all but volume buttons 1 enables all the buttons Report the valid range of command parameters Information String 0 1 for test parameter None for 0 and 1 parameters 7 2 2 2 MCB Plus Message Buttons Query Function Report current enabled disabled status of the M Buttons Syntax MCB Parameter None Information String 0 All but volume buttons disabled
25. mmand has been implemented as of the V 90 capable version of the 56K Professional Message modem Supervisor revision 12 2 5 and up Note 2 This command is not supported in the French version of the 56K Professional Message modem 2 4 1 24 MCT Plus Message Tollsaver Query Supported in 56K Professional_Message Modem only Function Report current enabled disabled status of the M Tollsaver Syntax MCT Parameter None Information String 0 Tollsaver Feature functionality disabled 1 Tollsaver Feature functionality enabled 2 4 1 25 MCV Plus Message Control Voice Reception Function Enable disable voice reception and storage in M Mode The M Modem receives and stores voice messages in the M Memory If this option is disabled then no voice messages are received and stored in the M Mode Syntax MCV lt iPar gt or MCV Parameter 0 Disable the voice reception and storage in M Mode 1 Enable the voice reception and storage in M Mode Report the valid range of command parameters Information String 0 1 for test parameter None for 0 and 1 parameters 2 4 1 26 MCV Plus Message Control Voice Reception Query Function Report enabled disabled status of the voice reception and storage in M Mode Syntax MCV Parameter None Information String 0 Voice reception and storage in M Mode disabled 1 Voice reception and storage in M Mode enabled 2 4 1 27 MCW Plus Message Control Write Settings Function
26. n from the User Sector is transferred to the Mirror Sector except of the fields already updated in the Mirror Sector 4 The User Sector is erased 5 The information from the Mirror Sector is transferred to the User Sector It should be noted that the five steps can take up to twenty seconds to execute 3 3 Data Sectors The Data Sectors represent a contiguous memory space of approximately 2MB 1966080 bytes where the incoming messages are stored The Data Sectors are all erased at the same time no selective erasure is provided for 3Com U S Robotics 24 A Self Mode Technical Reference 3 March 1999 4 Format of Messages Stored in the M Memory Received messages are stored in form of records sequentially from the first data sector to the last one Because the received messages vary in size significantly they are stored in records of variable size so the available memory space is used efficiently To ease the navigation within the M Memory each record will contain a fixed size header field with administrative information and a variable size data field where the captured message is stored 4 1 Header Field The 34 bytes long fixed size Header Field contains main characteristics of the stored message and information related to its management Table 2 5 6 7 8 27 28 29 30 3Com U S Robotics Message Information Message Attributes Reception Status Time Stamp Days Hours Minutes Sender
27. ned Parameter None Disable the fax forwarding option in SR Mode 0 2 4 6 Disable the fax forwarding option in SR Mode 1 Enable the fax forwarding option in SR Mode with blind dialing disabled and speaker is turned on 3 Enables the fax forwarding option with blind dialing enabled and speaker is turned on 5 Enables the fax forwarding option with blind dialing disabled and speaker is turned off 7 Enables the fax forwarding option with blind dialing enabled and speaker turned off Response 0 7 Response to the command test parameter 2 4 3 4 MFF Plus Memory Fax Forwarding Option Inquiry Only supported in 56K Professional Message Modem with code revision 14 2 7 and above Only supported in 56K Message Modem with code revision 14 8 1 and above Function Report Enabled Disabled status of the fax forwarding option in SR Mode Syntax MFF Parameter None Response 0 2 4 6 Fax Forwarding option disabled 1 3 5 7 Fax Forwarding option enabled 2 4 3 5 MFN Plus Memory Fax Forwarding number Only supported in 56K Professional Message Modem with code revision 14 2 7 and above Only supported in 56K Message Modem with code revision 14 8 1 and above 3Com U S Robotics 16 A Self Mode Technical Reference 3 March 1999 Function Set up and store the Fax Forwarding Number The Fax Forward Number consists of up to 20 digits You can also tell dialing mode Pulse or Tone by adding P or T in front of numbers like MEN P967
28. ng modems The complex command scheme is avoided It should be noted that Rockwell is currently using the MS Select Modulation command for their single chip modems but it is used for different purpose and it has different format which should prevent any possible conflicts in the future Also there should not be any conflict with any U S Robotics AT commands since all U S Robotics modems are fax enabled and therefore parse the F prefix reliably The integrity of the M command scheme should be also increased by the fact that the single command does not exist in the Hayes compatible AT command set and it will trigger the ERROR response in any modem without the Self mode enabled 2 1 New M Commands 2 2 M Command Groups The M commands can be divided into several groups based on their scope of functionality MC Plus Message Control Group ME Plus Message Erase Group MF Plus Message Fax Group MS Plus Message Status Group MT Plus Message Transfer Group MY Plus Message Voice Group 2 3 Modem Responses to M Commands The M command response consists of an information string that can be empty followed by either a success CR LF OK CR LF qualifier or a failure CR LF ERROR CR LF qualifier 3Com U S Robotics 6 A Self Mode Technical Reference 3 March 1999 The information string can be formatted for each M command differently The qualifier following the optional information string is always present
29. nsion to the F command set The format of the new M commands should be both intuitive to build on previous experience of the user flexible to allow for control of complex M functionality and protected against possible conflicts with any standardised command schemes 3Com U S Robotics 5 A Self Mode Technical Reference 3 March 1999 2 The M Plus Message command scheme The basic format of the AT commands under this scheme is A T2 M cCharl cChar2 iPar1 iPar2 iPar3 iParn2 1 1 where AT is the AT command mandatory prefix M Plus Message is a mandatory prefix of a command based on the M command scheme cCharl cChar2 is a two letter alphabetic command mnemonic based on the command s scope is optional formatting character iPar1 to iParn are optional numeric integer parameters Example 1 AT MCR 4 sets the M number of Rings before answering in M Mode to 4 2 The M command scheme follows the common use of the and F commands therefore is intuitive for people familiar with those schemes 3 The M command flexibility should be sufficient given the option of two mnemonic based alphabetic characters in command s body and the large number of optional command s numeric parameters The M command should be resistant against conflicts with standardised command schemes The possibly conflicting F prefix is already standardised and detected reliably by many existi
30. o be reset by the MCC command in order to start running Syntax MCC Parameter None Information String None 2 4 1 4 Plus Message Control Clock Use A real time clock the M Clock is implemented in the M Modem in order to time stamp received messages The message time stamp is recorded by copying the value of the M Clock to the message header upon the off hook transition when an incoming call is answered in M Mode 3Com U S Robotics 7 A Self Mode Technical Reference 3 March 1999 Upon power up the M clock is in a not initialised state and it is not running The M Clock can be reset by an AT command MCC The M Clock reset is required to run the M clock The M clock is running in all modes of the M Modem The M Clock is capable to measure time interval from 0 seconds to 255 days The M Clock tick is 2 seconds The M Clock does not roll over the overflow is indicated by reported time of 254 days 24 hours 0 minutes and 0 seconds The M Clock time reporting is invoked by an AT command MCC The M clock is not battery backed If the M modem power cycles the clock is set to the not initialised state which then can be used to indicate the occurrence of a power cycle The not initialised state is indicated by reported time of 255 days 255 hours 255 minutes 255 seconds In order to translate the recorded message time stamp value to a meaningful date and time of reception the DTE application is required to rec
31. ord the actual system time when the M Clock is reset by the AT command MCC Then the actual date and time of reception of a retrieved message which is displayed by the application is computed as the sum of the recorded system date and time and the value of the time stamp of the stored message 2 4 1 5 MCC Plus Message Control Clock Query Function Report current clock setting Syntax MCC Parameter None Information String lt days gt lt hours gt lt minutes gt lt seconds gt lt days gt Number of expired days 000 254 since last MCC reset consisting of 3 ASCII digits 3 Separator ASCII character 02Ch hours Number of expired hours 000 024 since last MCC reset consisting of 3 ASCII digits Separator ASCII character 02Ch lt minutes gt Number of expired minutes 000 059 since last MCC reset consisting of 3 ASCII digits Separator ASCII character 02Ch seconds Number of expired seconds even numbers 000 058 since last MCC reset consisting of 3 ASCII digits Notes The clock increment is 2 seconds therefore number of expired seconds is even The response string 255 255 255 255 indicates either missing M clock initialisation or power cycle occurrence The response string 254 024 000 000 indicates a 255 day M clock overflow 2 4 1 6 MCD Plus Message Control Dialup Retrieval Function Enable disable M Dialup Retrieval Option Syntax MCD lt iPar gt or MCD Parame
32. ormation String 0 1 for test parameter None for 0 and 1 parameters 2 4 1 16 MCM Plus Message Control Monitor Query Function Report the enabled disabled status of the M Call Monitor Option Syntax MCM Parameter None 3Com U S Robotics 11 a Self Mode Technical Reference 3 March 1999 Information String 0 Monitor Option disabled 1 Monitor Option enabled 2 4 1 17 MCP Plus Message Control Password Function Set up and store the M Dialup Password The M Dialup Password consists of 4 digits Syntax MCP lt 4 digit string or MCP Parameter lt 4 digit string gt Set M Dialup Password to the string of four digits Report the range of valid characters for the M Dialup Password formatted as in TIA EIA 592 Class 2 0 Fax Information String 30 39 For test parameter ASCII characters from 030h to 039h allowed in the M Dialup Password None for lt 4 digit string gt 2 4 1 18 MCP Plus Message Password Query Function Report the current setting of the M Dialup Password Syntax MCP Parameter None Information String lt Four ASCII coded digit string gt if the M Dialup Password is set up None if the M Dialup Password is not set up 2 4 1 19 MCR Plus Message Ring Setup Function Set up the number of incoming RINGs before answering in the M Mode Syntax MCR lt iPar gt or MCR Parameter 3 Answer in M Mode after the third detected ring 4 Answer in M Mode a
33. portions of the memory are being used by messages already retrieved or checked IMPORTANT 3Com U S Robotics 28 Bom Self Mode Technical Reference 3 March 1999 An unsuccessful call will ALSO turn the MSG led to amber even if the memory of the modem seems empty The type of unsuccessful calls can be gt The calling party hanged up during the greeting message gt A fax call was received while your modem was configured for Voice only mode gt A voice call was received while your modem was configured for fax only mode These events use a small amount of memory each time they occur and therefore turn the MSG led to amber Generally you cannot retrieve these false messages To turn the MSG led off simply erase the modem s memory using your supplied software application or the DEL button 3Com U S Robotics 29 A Self Mode Technical Reference 3 March 1999 7 M Buttons 7 1 Sportster Message Plus 56K Message As of the code revision 11 2 2 and up the ability to listen to voice messages without the need to power up the computer has been implemented This function works with the Volume Up and Volume Down buttons and while the modem is in Self Mode MCS 1 Depressing Volume Up and Volume Down Enter Playback mode and Playback first message Exit Playback mode Depressing Volume Up Play next message Depressing Volume Down Play previous message 7 2 56K Professional Message 7 2 1 General considerat
34. rator ASCII 02Ch 3 March 1999 1 Message Unchecked 0 Message Checked 1 Message Unreleased 0 Message Released 1 Message Valid 0 Message Erroneous For fax the EIA TIA 592 FHS call termination status code or 3Com manufacturers specific code if the fax reception in M Mode was aborted without a received FHS response For voice the terminating DLE code character coded as ASCII 3 digit decimal number or 255 if the voice reception in M Mode was terminated without DLE code available The number of days from the last M Clock reset to the start of reception of the message M Clock was not initialised or power cycle in M Mode occurred The hours section of the message reception time stamp M Clock was not initialised or power cycle in M Mode occurred The minute section of the message reception time stamp M Clock was not initialised or power cycle in M Mode occurred For fax message the 20 character string reported by the FTI response If the reported string is shorter than 20 characters appropriate number of ACSII 020h space characters is added For voice message a string of 20 ASCII 020h space characters The offset element of message starting address 3Com U S Robotics 19 Bom Self Mode Technical Reference 3 March 1999 lt Address High gt 000 to 127 The high address byte element of message starting address Separator ASCII 02Ch Address Low 000 to
35. red Steady amber when all messages have been retrieved or checked The steady amber state is intended to warn the user that portions of the memory are being used by messages already retrieved or checked IMPORTANT An unsuccessful call will ALSO turn the MSG led to amber even if the memory of the modem seems empty The type of unsuccessful calls can be gt The calling party hanged up during the greeting message A fax call was received while your modem was configured for Voice only mode A voice call was received while your modem was configured for fax only mode These events use a small amount of memory each time they occur and therefore turn the MSG led to amber Generally you cannot retrieve these false messages 6 3 56K Professional Message 6 3 1 PWR MEM This LED is used to indicate M Modem s functionality A dual color LED is used If Self mode is disabled LED will be red If the Self mode is enabled the LED will be steady green and message and will blink fast if the memory is full 6 3 2 MSG 6 3 2 1 Initial behaviour Blinks red for any new fax received and Blinks green for any new voice message received One blink per message If you received 2 voice message and 1 fax the LED will blink twice green and once red 6 3 2 2 As of the V 90 code release SV Rev 12 2 5 and up Steady amber when all messages have been retrieved or checked The steady amber state is intended to warn the user that
36. sons other than activated transmit flow control the M Capture Mode is aborted all received data is discarded and the original data is preserved If the amount of data sent from the DTE becomes larger than the space allocated in the M Memory for the specified outgoing message the M Capture Mode is aborted and all received data is discarded and the original data is preserved MVC lt iPar gt 0 Capture M Outgoing Message 1 Capture M Memory Full Message None Plus Message Voice Duration Message Specify the duration in seconds of the received voice messages MVD lt iPar gt 0 Do not limit duration of received voice messages 1 254Limit duration of received voice messages to the number of seconds equal to parameter value 255 Do not limit duration of received voice messages Legacy of M Application with no MVD support None Plus Message Voice Duration Message Query Report current setting of the received messages duration MVD 3Com U S Robotics 21 Bom Self Mode Technical Reference Parameter Information String 2 4 6 4 MVP Function Syntax Parameter Information String 2 4 6 5 MVR Function Syntax Parameter Information String 3 March 1999 None 0 Unlimited duration of the received voice messages 1 254 Duration of received voice messages in seconds 255 Unlimited duration of the received voice messages Plus Message Voice Play Message Play back the
37. specified voice message through the external speaker MVP lt iPar gt 0 Play M Outgoing Message 1 254 Play the message with index equal to parameter 255 Play M Memory Full Message None Plus Message Voice Record Message Record the specified M outgoing message through the internal microphone and store it in the M Memory The recording is terminated either by a key press abort or if the size of the recorded M message exceeds the space available for its storage in the M Memory MVR lt iPar gt 0 Record and store M Outgoing Message 1 Record and store M Memory Full Message None 3Com U S Robotics 22 A Self Mode Technical Reference 3 March 1999 3 Flash Memory The total memory space available for the Self Mode Feature is 2MB 2097152 bytes The flash memory space is divided into 32 equally large sectors of 64kB 65536 bytes that can be individually erased The first sector the User Sector is used for storage of user configurable data which are required for M Options The nature of the flash memory requires to allocate one extra sector as a mirror to the User Sector so the information fields in the User Sector can be updated independently This extra sector is called the Mirror Sector and is located right after the User Sector The remaining 30 sectors called Data Sectors are used for storage of the incoming messages The Data Sectors represent 93 75 of the capacity of the M Memory Table 1 Parti
38. ter 0 Dialup Retrieval Option 1 Enable the M Dialup Retrieval Option Report the valid range of command parameters 3Com U S Robotics 8 Bom Self Mode Technical Reference 3 March 1999 Information String 0 1 for test parameter None for 0 and 1 parameters 2 4 1 7 Plus Message Control Dialup Retrieval Use When enabled the user can remotely retrieve the stored voice messages through a dialup connection A user configurable four digits password called the M Dialup Retrieval Password MCPzijkl that has to be entered during a dialup retrieval session using the DTMF tones protect the access Sending appropriate DTMF signals as control commands controls the progress of a dialup retrieval session Voice retrieval is entered through the call selection discussed in the reception mode Once a DTMF digit is detected during call selection the M Dialup Password verification is started The user has three chances to enter the correct M Dialup Password If he fails to enter the correct M Dialup Password the call is aborted and the modem goes back on hook If the correct M Dialup Password is entered the modem acoustically indicates the number of present Unchecked Messages new including the case of no new messages The user may then enter the DTMF digit When there are no more voice messages selected for playback the modem acoustically indicates the end of currently played message and waits for more DTMF tones for a predefined
39. tioning of M Memory Sector Name Physical Stored Data Fields Field Length Address Range User Sector 000000h M Outgoing Message O00FFFFh M Memory Full Message M Fax ID String M Dialup Retrieval Password Free m O1FFFFh ue L IFFFFFh 3 1 User Sector The User Sector holds the data for the M Dialup Retrieval Password the M Fax ID String the M Outgoing Message and the M Memory Full Message in separate fields The M Outgoing Message is stored in 32768 bytes of contiguous space in the User Sector This corresponds to approximately 15 seconds of GSM encoded audio signal The M Memory Full Message is stored in 32512 bytes of contiguous space in the User Sector This corresponds to approximately 15 seconds of GSM encoded audio signal 1 The M Fax ID String is stored in 20 bytes of contiguous space 2 The M Dialup Retrieval Password is stored in 4 bytes of contiguous space 3 The remaining 232 bytes are for future additions 3 2 Mirror Sector This sector is used when the information in the User Sector is being updated since every of the separate data fields in the User Sector must be able to be updated independently The information in the User Sector is updated in five steps 1 The Mirror Sector is erased 2 The new data is written into the respective blank fields in the Mirror Sector 3Com U S Robotics 23 Bom Self Mode Technical Reference 3 March 1999 3 The informatio
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