#This was extracted from v90atcom.pdf, which is available for download#at lucent web pages, so I guess it is ok to distribute.##My notes are on lines starting with #, be sure to read them!#  Data Addendum  June 15, 1998  Version 1.1                                      Host-Based Controller Modem AT Command SetContents                                                   Page            IntroductionAT Command Summary ........................................2               This document specifies the Lucent TechnologiesAT Commands Reference .....................................6               MTC AT Command Set for the host-based controllerTest and Debug AT Commands ..........................24                    modem products.  Note that if a particular modemAT Commands Reference S-Registers ...............29                        board does not support a feature (such as voice),AT FAX Command Set (Class 1 FAX)..................36                       then the corresponding commands are disabled forAT FAX Commands Reference............................37                    that modem.AT Voice Command Set.......................................42AT 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...................................................48   VOICE MODEM COMMAND EXAMPLES .....................49AT DSVD Commands...........................................56V.25ter AT Commands.........................................57V.80 AT Commands .............................................59AT Commands for Homologation Testing andDebugging............................................................61   CONFIGURING FOR DIFFERENT COUNTRIES .............63   COUNTRY SPECIFIC HOMOLOGATION PARAMETERS .69   COUNTRY SPECIFIC S REGISTER DEFAULTS............84   CHANGING THE DTMF DIAL SPEED DEFAULT VALUE86Host-Based Controller Modem                                                                        Data AddendumAT Command Set                                                                                          June 15,1998AT Command SummaryThe following tables summarize the commands implemented by the modem.  Commands may be executed whenthe modem is in COMMAND mode.  COMMAND mode is entered upon under one of the following conditions:  After power up  At the termination of a connection  After the execution of a command other than dial or answer commands (ATO or AT&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 &D1, &D2, or &D3 has been setTable 1.  AT Command Set Summary     Command                     Description                   Command                   Description        A/       Repeat last command                             &J       Auxiliary relay options        A        Answer command                                  &K       Local flow control selection        B        Communication standard setting                  &M       Asynchronous communications mode        C        Carrier control                                 &Q       Asynchronous communications mode        D        Dial command                                    &S       Data set ready (DSR) option        E        Echo command                                    &T       Self-test commands        F        On-line data character echo command             &V       View the active configuration        H        Hook control                                    &W       Store current configuration         I       Request ID information                          &Y       Select stored profile for hard reset        L        Monitor speaker volume                          &Z       Store telephone number        M        Monitor speaker mode                             \A      MNP block size        N        Modulation handshake                             \B      Send break        O        Return to on-line data mode                     \G       Modem port flow control        P        Select pulse dialing                             \J      Adjust bits/s rate control        Q        Result code control                              \K      Set break control        T        Select tone dialing                              \N      Error control mode selection        V        DCE response format                             \Q       Local flow control selection        W        Result code option                               \R      Ring indicator off after answer        X        Result code selection and call progress          \T      Inactivity timer                 monitoring        Y        Long-space disconnect                            \V      Protocol result code        Z        Reset and recall stored profile                  \X      XON/XOFF pass through        &B       V.32 auto retrain                               %B       View numbers in blacklist       &C        Data carrier detect (DCD) control               %C       Data compression control       &D        Data terminal ready (DTR)                       %E       Automatic rate change        &F       Local factory settings                           -C      Data calling tone       &G        V.22bis guard tone control                      -V90     Enable/disable V.90 settings2                                               Version 1.0                  Lucent Technologies Inc.Data Addendum                                                                     Host-Based Controller ModemJune 15, 1998                                                                                    AT Command SetAT Command Summary (continued)Table 2.  AT Testing and Debugging Command Set Summary Command             Description                                       Command    Description &&C                 Write to/read from host interface                 %T94       Test external DSP RAM &&L                 Line-to-line loopback                             %T124      Return to on-chip DSP RAM &&R                 Write to/read from DSP RAM location               %T125      Load K56flex image to external DSP RAM &&S                 Speaker codec loopback                            #UD        Unimodem diagnosticsTable 3.  The S-Register Summary Register Default               Description S0             0               Automatic answer ring number S1             0               Ring counter S2             43              AT escape character S3             13              Command line termination character S4             10              Response formatting character S5             8               Command line editing character S6             2               Wait before dialing S7             50              Connection completion time-out S8             2               Comma dial modifier time S10            20              Automatic disconnect delay S11            95              DTMF dialing speed S12            50              Escape guard time S14            8               General bit-mapped options status S21            48              V.24 bit-mapped options status S22            112             Results bit-mapped options status S24            10              Timer to control sleep mode S28            1               V.34 modulation enable/disable S30            0               Inactivity timer S32            16              Synthetic ring volume S33            0               Synthetic ring frequency S35            0               Data calling tone S36            7               Negotiation fallback S37            0               Dial line rate S38            1               Enable/disable K56flex settings S42*           1               Auto rate S43*           1               Auto mode S48            7               LAPM error control and feature negotiation S89            10              Timer to control sleep mode S90            10              Local phone status S91            15              Line transmit level S108           7               Network codec type*  S-registers 42, and 43 are for test and debugging purposes only.Version 1.0                                    Lucent Technologies Inc.                                               3Host-Based Controller Modem                                                                       Data AddendumAT Command Set                                                                                          June 15,1998AT Command Summary (continued)Table 4.  The Result Code Summary     Result Code           Numeric        Description     OK                    0              Command executed     CONNECT               1              Modem connected to line     RING                  2              A ring signal has been detected     NO CARRIER            3              Modem lost carrier signal, or does not detect carrier signal, or does                                          not detect answer tone     ERROR                 4              Invalid command     CONNECT 1200 EC*      5              Connection at 1200 bit/s     NO DIALTONE           6              No dial tone detected     BUSY                  7              Busy signal detected     NO ANSWER             8              Remote end never answered     CONNECT 2400 EC*      10             Connection at 2400 bit/s     CONNECT 4800 EC*      11             Connection at 4800 bit/s     CONNECT 9600 EC*      12             Connection at 9600 bit/s     CONNECT 14400 EC*     13             Connection at 14400 bit/s     CONNECT 19200 EC*     14             Connection at 19200 bit/s     CONNECT 7200 EC*      24             Connection at 7200 bit/s     CONNECT 12000 EC*     25             Connection at 12000 bit/s     CONNECT 16800 EC*     86             Connection at 16800 bit/s     CONNECT 300 EC*       40             Connection at 300 bit/s     CONNECT 21600 EC*     55             Connection at 21600 bit/s     CONNECT 24000 EC*     56             Connection at 24000 bit/s     CONNECT 26400 EC*     57             Connection at 26400 bit/s     CONNECT 28800 EC*     58             Connection at 28800 bit/s     CONNECT 31200 EC*     59             Connection at 31200 bit/s     CONNECT 33600 EC*     60             Connection at 33600 bit/s     CONNECT 38400 EC*     28             Connection at 38400 bit/s (DTE rate)     CONNECT 57600 EC*     18             Connection at 57600 bit/s (DTE rate)     CONNECT 115200 EC*    87             Connection at 115200 bit/s (DTE rate)     DELAYED               88             Delay is in effect for the dialed number     BLACKLISTED           89             Dialed number is blacklisted     BLACKLIST FULL        90             Blacklist is full     CONNECT 32000 EC*     70             Connection at 32000 bit/s (K56flex mode) or V.90     CONNECT 34000 EC*     71             Connection at 34000 bit/s (K56flex mode)     CONNECT 36000 EC*     72             Connection at 36000 bit/s (K56flex mode) or V.90     CONNECT 38000 EC*     73             Connection at 38000 bit/s (K56flex mode)     CONNECT 40000 EC*     74             Connection at 40000 bit/s (K56flex mode) or V.90     CONNECT 42000 EC*     75             Connection at 42000 bit/s (K56flex mode)     CONNECT 44000 EC*     76             Connection at 44000 bit/s (K56flex mode) or V.90     CONNECT 46000 EC*     77             Connection at 46000 bit/s (K56flex mode)     CONNECT 48000 EC*     78             Connection at 48000 bit/s (K56flex mode) or V.90     CONNECT 50000 EC*     79             Connection at 50000 bit/s (K56flex mode)     CONNECT 52000 EC*     80             Connection at 52000 bit/s (K56flex mode) or V.90     CONNECT 54000 EC*     81             Connection at 54000 bit/s (K56flex mode)     CONNECT 56000 EC*     82             Connection at 56000 bit/s (K56flex mode)     CONNECT 28000 EC*     100            Connection at 28000 bit/s (V.90 mode)4                                    Lucent Technologies Inc.                               Version 1.0Data Addendum                                                                             Host-Based Controller ModemJune 15, 1998                                                                                                 AT Command SetAT Command Summary (continued)  Result Code                         Numeric       Description  CONNECT 29333 EC*                   101           Connection at 29333 bit/s (V.90 mode)  CONNECT 30666 EC*                   102           Connection at 30666 bit/s (V.90 mode)  CONNECT 33333 EC*                   103           Connection at 33333 bit/s (V.90 mode)  CONNECT 34666 EC*                   104           Connection at 34666 bit/s (V.90 mode)  CONNECT 37333 EC*                   105           Connection at 37333 bit/s (V.90 mode)  CONNECT 38666 EC*                   106           Connection at 38666 bit/s (V.90 mode)  CONNECT 41333 EC*                   107           Connection at 41333 bit/s (V.90 mode)  CONNECT 42666 EC*                   108           Connection at 42666 bit/s (V.90 mode)  CONNECT 45333 EC*                   109           Connection at 45333 bit/s (V.90 mode)  CONNECT 46666 EC*                   110           Connection at 46666 bit/s (V.90 mode)  CONNECT 49333 EC*                   111           Connection at 49333 bit/s (V.90 mode)  CONNECT 50666 EC*                   112           Connection at 50666 bit/s (V.90 mode)  CONNECT 53333 EC*                   113           Connection at 53333 bit/s (V.90 mode)  CONNECT 54666 EC*                   114           Connection at 54666 bits/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.