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# DIAMOND MULTIMEDIA SYSTEMS, INC.
SUPRAEXPRESS 56
Card Type Modem, Fax
Chip Set Rockwell
Maximum Modem Rate 56Kbps
Maximum Fax Rate 14.4Kbps
Data Modulation Bell 103A/212A
Protocol
ITU-T V.21, V.22, V.22bis, V.23, V.32,
V.32bis, V.34
Rockwell 56K
Fax Modulation ITU-T V.17, V.21, V.27ter, V.29
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
Fax Class Class I
Data Bus External
55028
+------------------------------------------------------------+
| SUPPORTED COMMAND SET |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| AT, ‘+++’, A/ |
|------------------------------------------------------------|
| A, B, D, E, H, M, N, O, P, T, V, W, X, Y, Z |
|------------------------------------------------------------|
| &C, &P, &Q, &W, &Y, &Z |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \N |
|------------------------------------------------------------|
| %C, %E, %G, %L |
|------------------------------------------------------------|
| S Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, |
| S24, S25, S26, S29, S30, S32, S33, S38 |
|------------------------------------------------------------|
| Special Commands |
|------------------------------------------------------------|
| #CID, +MS |
|------------------------------------------------------------|
| Note: See MHI Help File for full command documentation. |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %En [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls auto-retrain mode and |
| | fallback/fall-forward |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %E0 | Auto-retrain disabled |
|--------------+---------------------------------------------|
| %E1 | Auto-retrain enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA TERMINAL READY (DTR) |
|------------------------------------------------------------|
| Type: | Configuration |
|---------------+--------------------------------------------|
| Format: | AT [cmds] &Dn [cmds] |
|---------------+--------------------------------------------|
| Description: | Selects modem response to DTR |
|------------------------------------------------------------|
| Note: The action each variant of &D causes depends on |
| the setting of &Q |
|------------------------------------------------------------|
| &Q Setting | &D0 | &D1 | &D2 | &D3 |
|------------------+---------+---------+---------+-----------|
| í &Q0, &Q5, &Q6 | NONE | Command | Command | Command 4 |
| | | 3 | 1 | |
|------------------+---------+---------+---------+-----------|
| &Q1, &Q4 | Command | Command | Command | Command 4 |
| | 2 | 3 | 1 | |
|------------------+---------+---------+---------+-----------|
| &Q2, &Q3 | Command | Command | Command | Command 1 |
| | 1 | 1 | 1 | |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| í Command 0 | Modem does not respond to DTR |
|---------------+--------------------------------------------|
| Command 1 | Modem goes to command mode after DTR goes |
| | is off |
|---------------+--------------------------------------------|
| Command 2 | Modem goes to command mode and disconnects |
| | (hangs up) after DTR goes off; Auto-Answer |
| | is disabled. |
|---------------+--------------------------------------------|
| Command 3 | Modem is initialized after DTR goes off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FACTORY DEFAULT PROFILE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &F [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets values in active profile to values |
| | found in the default profile |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í &F0 | Restore factory (PC) configuration; with |
| | hardware flow control, error correction, |
| | and data compression enabled |
|--------------+---------------------------------------------|
| &F1 | Restore factory (Mac) default |
| | configuration, with hardware flow control, |
| | error correction, and data compression |
| | enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLASH ROM |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] ** [cmds] |
|--------------+---------------------------------------------|
| Description: | Set flash ROM code XMODEM upload mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Kn [cmds] |
|--------------+---------------------------------------------|
| Description: | Enables flow control options |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &K0 | Flow control disabled |
|--------------+---------------------------------------------|
| í &K3 | RTS/CTS flow control enabled |
|--------------+---------------------------------------------|
| &K4 | XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| &K5 | Transparent XON/XOFF flow control enabled |
|--------------+---------------------------------------------|
| &K6 | Both RTS/CTS and XON/XOFF flow control |
| | enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE SIGNAL QUALITY |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %Q [cmds] |
|--------------+---------------------------------------------|
| Description: | Returns a value which indicates line signal |
| | quality |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %Q0 | Connection statistics |
|--------------+---------------------------------------------|
| %Q1 | Data transfer statistics |
|--------------+---------------------------------------------|
| %Q2 | Data transfer stats |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports maximum data carrier rate |
|--------------+---------------------------------------------|
| I1 | Reports ROM checksum |
|--------------+---------------------------------------------|
| I2 | Tests and reports ROM checksum |
|--------------+---------------------------------------------|
| I3 | Reports ROM code revision number |
|--------------+---------------------------------------------|
| I4 | Reports supported protocols, in encrypted |
| | format |
|--------------+---------------------------------------------|
| I5 | Reports firmware copyright information |
|--------------+---------------------------------------------|
| I6 | Reports country code for country PSTN |
| | signals |
|--------------+---------------------------------------------|
| I7 | Reports DSP model and version code |
|--------------+---------------------------------------------|
| I9 | PnP COMID string |
|--------------+---------------------------------------------|
| I10 | Reports features supported by the modem |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RESULT CODES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Qn [cmds] |
|--------------+---------------------------------------------|
| Description: | Enables modem to send result codes to the |
| | DTE |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í Q0 | Result code sending enabled |
|--------------+---------------------------------------------|
| Q1 | Result code sending disabled |
|--------------+---------------------------------------------|
| Q2 | Enables result code sending on originate; |
| | disable on answer |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SPEAKER VOLUME |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Ln [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls speaker volume |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| L0 | Speaker disabled |
|--------------+---------------------------------------------|
| í L2 | Medium volume setting |
|--------------+---------------------------------------------|
| L3 | Highest volume setting |
+------------------------------------------------------------+
Special AT Commands
+------------------------------------------------------------+
| COUNTRY CODE DISPLAY |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *NC? [cmds] |
|--------------+---------------------------------------------|
| Description: | Display country codes and configurations |
| | supported |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COUNTRY CODES SELECT |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *NCn [cmds] |
|--------------+---------------------------------------------|
| Description: | Select country code |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| *NC000 | United States |
|--------------+---------------------------------------------|
| *NC001 | Austria |
|--------------+---------------------------------------------|
| *NC002 | Belgium |
|--------------+---------------------------------------------|
| *NC003 | Denmark |
|--------------+---------------------------------------------|
| *NC004 | Finland |
|--------------+---------------------------------------------|
| *NC005 | France |
|--------------+---------------------------------------------|
| *NC006 | Germany |
|--------------+---------------------------------------------|
| *NC007 | Ireland |
|--------------+---------------------------------------------|
| *NC008 | Italy |
|--------------+---------------------------------------------|
| *NC010 | Netherlands |
|--------------+---------------------------------------------|
| *NC011 | Norway |
|--------------+---------------------------------------------|
| *NC012 | Portugal |
|--------------+---------------------------------------------|
| *NC013 | Spain |
|--------------+---------------------------------------------|
| *NC014 | Sweden |
|--------------+---------------------------------------------|
| *NC015 | Switzerland |
|--------------+---------------------------------------------|
| *NC016 | United Kingdom |
|--------------+---------------------------------------------|
| *NC017 | Greece |
|--------------+---------------------------------------------|
| *NC022 | United States |
|--------------+---------------------------------------------|
| *NC040 | Australia |
|--------------+---------------------------------------------|
| *NC043 | Japan |
|--------------+---------------------------------------------|
| *NC047 | Singapore |
|--------------+---------------------------------------------|
| *NC060 | South Africa |
|--------------+---------------------------------------------|
| *NC061 | Korea |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIALING CODES |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] *Zn [cmds] |
|--------------+---------------------------------------------|
| Description: | Change dialing codes |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| *Z0 | Use dial code 0 |
|--------------+---------------------------------------------|
| *Z1 | Use dial code 1 |
+------------------------------------------------------------+
S(status) -REGISTERS
+------------------------------------------------------------+
| AUTOMATIC RATE ADAPTION |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S191=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 128 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Description: | Sets the automatic rate adaption bias |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIT-MAPPED REGISTER S27 |
|------------------------------------------------------------|
| Format | AT [cmds] S27=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | 0-111 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Selects synchronous/asynchronous mode, line |
| | type, clock source, and ITU-T/Bell modes. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 0 | &M0/&Q0 |
| | | |
| | 1 | &Q4 |
|------+-------+---------------------------------------------|
| 0 | 1, 0 | &M2/&Q2 |
| | | |
| | 1, 1 | &Q6 |
|------+-------+---------------------------------------------|
| 1 | 0, 0 | &M1/&Q1 |
| | | |
| | 0, 1 | &Q5 |
|------+-------+---------------------------------------------|
| 2 | 0 | Dial up line |
| | | |
| | 1 | Leased line |
|------+-------+---------------------------------------------|
| 4 | 0 | Internal sync clock select |
| | | |
| | 1 | external sync clock select |
|------+-------+---------------------------------------------|
| 6 | 0 | ITU |
| | | |
| | 1 | Bell |
|------+-------+---------------------------------------------|
| 7 | 128 | Reserved |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECTION FAILURE CODES |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S86? [cmds] |
|--------------+---------------------------------------------|
| Description: | Reports codes which correspond to the |
| | possible causes of a connection failure |
|--------------+---------------------------------------------|
| Value | Meaning |
|--------------+---------------------------------------------|
| 0 | Normal hang up |
|--------------+---------------------------------------------|
| 1 - 3 | No failure - normal hang-up after fax |
| | connection |
|--------------+---------------------------------------------|
| 4 | Carrier signal lost |
|--------------+---------------------------------------------|
| 5 | No error-control detected for remote modem |
| | during feature negotiation |
|--------------+---------------------------------------------|
| 6 | Remote modem failed to respond to feature |
| | negotiation |
|--------------+---------------------------------------------|
| 7 | Local modem is asynchronous-only, remote |
| | modem is synchronous-only |
|--------------+---------------------------------------------|
| 8 | No common framing technique found |
|--------------+---------------------------------------------|
| 9 | No common protocol found |
|--------------+---------------------------------------------|
| 10 | Remote modem sent erroneous feature |
| | negotiation message |
|--------------+---------------------------------------------|
| 11 | Remote modem failed to send synchronous |
| | information |
|--------------+---------------------------------------------|
| 12 | No failure - remote modem disconnected |
| | normally |
|--------------+---------------------------------------------|
| 13 | Remote modem failed to respond after 10 |
| | re-transmissions same message |
|--------------+---------------------------------------------|
| 14 | Violation of negotiated protocol caused |
| | failure |
|--------------+---------------------------------------------|
| 15 | Negotiated compression failed |
|--------------+---------------------------------------------|
| 16 | Line speeds selected in S37 and S109 did |
| | not match |
|--------------+---------------------------------------------|
| 17 | Time limit reached according to parameters |
| | set in S116 |
|--------------+---------------------------------------------|
| 18 | Time limit reached according to parameters |
| | set in S30 |
|--------------+---------------------------------------------|
| 19 | Long Space Disconnect (Y1) time limit |
| | reached |
|--------------+---------------------------------------------|
| 20 | Key abort |
|--------------+---------------------------------------------|
| 21 | V.42bis protocol violation |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY CONTROL |
|------------------------------------------------------------|
| Type: | Register |
|----------------+-------------------------------------------|
| Format: | AT [cmds] S201=n [cmds] |
|----------------+-------------------------------------------|
| Description: | Controls the display |
|------------------------------------------------------------|
| Bit | Value | Function |
|---------+-------+------------------------------------------|
| 0 | 0 | Carrier statistics disabled |
| | | |
| | 1 | Carrier statistics enabled |
|------------------------------------------------------------|
| 1 | | REJ or SREJ from occurrence is also |
| | | shown |
|--------------+---+-----------------------------------------|
| 2 | | Reserved |
|--------------+---+-----------------------------------------|
| 3 | 0 | Rate re-negotiation display disabled |
| | | |
| | 1 | Rate re-negotiation display enabled |
|--------------+---+-----------------------------------------|
| 4 | 0 | Demo mode disabled |
|--------------+---+-----------------------------------------|
| 5 | 0 | LCD/LED update time fast |
| | | |
| | 1 | LCD/LED update time slow |
|--------------+---+-----------------------------------------|
| 6 | | Reserved |
|--------------+---+-----------------------------------------|
| 7 | | Reserved |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY CONTROL |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S194=n [cmds] |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Sets the display control |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 1 | Display basic mode |
|------+-------+---------------------------------------------|
| 1 | 2 | Carrier stats, issue ATZ after clearing |
| | | this command to return to normal operation |
|------+-------+---------------------------------------------|
| 2 | 4 | Reserved |
|------+-------+---------------------------------------------|
| 3 | 0 | Rate renegotiation display disabled |
| | | |
| | 1 | Rate renegotiation display enabled |
|------+-------+---------------------------------------------|
| 4 | 16 | Demo mode disabled |
|------+-------+---------------------------------------------|
| 5 | 0 | LCD/LED Dwell time fast |
| | | |
| | 1 | LCD/LED Dwell time slow |
|------+-------+---------------------------------------------|
| 6 | 64 | Reserved |
|------+-------+---------------------------------------------|
| 7 | 128 | Reserved |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ERROR CORRECTION NEGOTIATION |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S36=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the action of the modem if it fails |
| | to connect with the error-correction |
| | protocol set in &Q. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| S36=0 | Hang up |
|--------------+---------------------------------------------|
| S36=1 | Attempt a direct connection |
|--------------+---------------------------------------------|
| S36=3 | Reserved |
|--------------+---------------------------------------------|
| S36=4 | Attempt a connection at MNP2-4; if that |
| | fails, hang up. |
|--------------+---------------------------------------------|
| S36=5 | Attempt a connection at MNP2-4; if that |
| | fails, attempt a direct connection. |
|--------------+---------------------------------------------|
| S36=6 | Reserved |
|--------------+---------------------------------------------|
| í S36=7 | Attempt a connection at MNP2-4; if that |
| | fails, attempt a buffered connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EXTENDED RESULT CODES |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S95=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 0 |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Works in combination with the Wn command to |
| | enable extended result codes. Features |
| | enabled by S95 take precedence over the |
| | options selected by Wn. |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 1 | CONNECT XXXX result code indicates DCE to |
| | | DCE rate instead of DTE to DTE rate |
|------+-------+---------------------------------------------|
| 1 | 2 | Append/ARQ to CONNECT result code if EC is |
| | | active |
|------+-------+---------------------------------------------|
| 2 | 4 | Enable CARRIER XXXX result code |
|------+-------+---------------------------------------------|
| 3 | 8 | Enable PROTOCOL XXXX result code |
|------+-------+---------------------------------------------|
| 4 | 16 | Undefined |
|------+-------+---------------------------------------------|
| 5 | 32 | Enable compression result code |
|------+-------+---------------------------------------------|
| 6 | 64 | Enable TX and RX V.34 CARRIER result code |
| | | if in asymmetric carrier mode |
|------+-------+---------------------------------------------|
| 7 | 128 | Enable RINGING result code for ringback |
| | | detection |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MINIMUM EQM |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S190=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 20 |
|--------------+---------------------------------------------|
| Range: | 10-255 |
|--------------+---------------------------------------------|
| Unit: | seconds |
|--------------+---------------------------------------------|
| Description: | Sets the minimum "good" EQM |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PnP FUNCTION CONTROL |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S193=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls serial PnP function |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 0 | Serial PnP saved to NVRAM disabled |
| | | |
| | 1 | Serial PnP saved to NVRAM enabled |
|------+-------+---------------------------------------------|
| 1 | | Reserved |
|------+-------+---------------------------------------------|
| 2 | | Reserved |
|------+-------+---------------------------------------------|
| 3 | | Reserved |
|------+-------+---------------------------------------------|
| 4 | | Reserved |
|------+-------+---------------------------------------------|
| 5 | | Reserved |
|------+-------+---------------------------------------------|
| 6 | | Reserved |
|------+-------+---------------------------------------------|
| 7 | | Reserved |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SPECIAL FUNCTION CONTROL |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S192=n [cmds] |
|--------------+---------------------------------------------|
| Unit: | Bit-mapped |
|--------------+---------------------------------------------|
| Description: | Controls the special functions |
|--------------+---------------------------------------------|
| Bit | Value | Function |
|------+-------+---------------------------------------------|
| 0 | 0 | Silent answer snoop mode |
| | | |
| | 1 | Standard |
| | | |
| | | Fast |
|------+-------+---------------------------------------------|
| 1 | 0 | Adaptive answer mode |
| | | |
| | 1 | Attempt data carrier first, switch to fax |
| | | mode if not successful |
| | | |
| | | Attempt data carrier first, switch to fax |
| | | mode if only CNG tone detected |
|------+-------+---------------------------------------------|
| 2 | 0 | V.34 transmitter power reduction based on |
| | | INFO1 sequence disabled |
| | 1 | |
| | | V.34 transmitter power reduction based on |
| | | INFO1 sequence enabled |
|------+-------+---------------------------------------------|
| 3 | 0 | V.34 phase 4 TRN period disabled |
| | | |
| | 1 | V.34 phase 4 TRN period enabled |
|------+-------+---------------------------------------------|
| 4 | 0 | V.34 rate limiting after connection |
| | | disabled |
| | 1 | |
| | | V.34 rate limiting after connection enabled |
|------+-------+---------------------------------------------|
| 5 | 0 | V.34 EQM threshold reduction for 3000 and |
| | | 3429 symbol rates disabled |
| | 1 | |
| | | V.34 EQM threshold reduction for 3000 and |
| | | 3429 symbol rates enabled |
|------+-------+---------------------------------------------|
| 6 | 0 | No action when possible false V.34 carrier |
| | | is detected |
| | 1 | |
| | | Retrain when possible false V.34 carrier is |
| | | detected |
|------+-------+---------------------------------------------|
| 7 | 0 | Silent answer reason code off |
| | | |
| | 1 | Silent answer reason code on |
+------------------------------------------------------------+
V.25bis COMMAND SET
+------------------------------------------------------------+
| CALL REQUEST WITH ADDRESS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | CRSn |
|--------------+---------------------------------------------|
| Description: | Dials the number stored in memory register |
| | n |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CALL REQUESTED NUMBER |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | CRN<#> |
|--------------+---------------------------------------------|
| Description: | Dials the number given; it will ignore |
| | spaces and hyphens in the string; if the |
| | string is more than fifty characters long, |
| | a result of INV will be returned. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECT INCOMING CALLS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | CIC |
|--------------+---------------------------------------------|
| Description: | Instructs the modem to answer an incoming |
| | call; if no call is currently incoming, a |
| | result of INV will be returned. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISREGARD INCOMING CALL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | DIC |
|--------------+---------------------------------------------|
| Description: | Instructs the modem to ignore the incoming |
| | call, if the modem is set to automatically |
| | answer; if no call is currently incoming, a |
| | result of INV will be returned. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PROGRAM NUMBER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | PRNn;<#> or PRNn |
|--------------+---------------------------------------------|
| Description: | Stores a phone number in memory address n; |
| | if the number is more than fifty characters |
| | long, a result of INV will be returned. If |
| | the second form of this command is issued |
| | (i.e. with no string to store), it will |
| | clear memory address n. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REQUEST LIST OF DELAYED NUMBERS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | RLD |
|--------------+---------------------------------------------|
| Description: | Requests the list of delayed numbers from |
| | the modem; this is a list of numbers that |
| | the modem attempted to call and failed, and |
| | is not allowed to call again until a set |
| | amount of time has elapsed; this is usually |
| | to prevent repeated dialing of a number |
| | (which could indicate an attempted security |
| | breach.) If this feature is not enabled, |
| | the modem will return INV. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REQUEST LIST OF FORBIDDEN NUMBERS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | RLF |
|--------------+---------------------------------------------|
| Description: | Requests the list of forbidden numbers from |
| | the modem; the modem is unable to dial |
| | numbers on this list until its power has |
| | been cycled; if this feature is not |
| | enabled, the modem will return INV. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REQUEST LISTED NUMBERS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | RLI |
|--------------+---------------------------------------------|
| Description: | Requests the modem to return the list of |
| | stored numbers; if no numbers are stored, |
| | the modem will return LSN. |
+------------------------------------------------------------+
STANDARD AT# VOICE COMMAND SET
+------------------------------------------------------------+
| DISTINCTIVE RING |
|------------------------------------------------------------|
| Format: | AT [cmds] -SDR=n [cmds] |
|-----------------+------------------------------------------|
| Default: | Unidentified |
|-----------------+------------------------------------------|
| Range: | 0 - 7 |
|-----------------+------------------------------------------|
| Description: | Selects which distinctive ring signals |
| | the modem will respond to. |
|------------------------------------------------------------|
| Bit | Value | Function |
|----------+-------+-----------------------------------------|
| 0 | 0 | Do not respond to distinctive ring type |
| | | 1. |
| | 1 | |
| | | Respond to distinctive ring type 1. |
|------------------------------------------------------------|
| 1 | 2 | Enables double rings and reports these |
| | | as RING 2 0.8s on, 0.4s off, 0.8s on, |
| | | 0.4s off |
|--------------+----+----------------------------------------|
| 2 | 4 | Enables triple rings and reports these |
| | | as RING 3 0.4s on, 0.2s off, 0.2s off, |
| | | 4.0s off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LCD DISPLAYS |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #LCDn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls whether the DTE will allow the |
| | modem to send a 1300Hz calling tone when |
| | originating |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| #LCD0 | "STRING mode disabled |
|--------------+---------------------------------------------|
| #LCD1 | "STRING string is displayed on LCD line 1 |
|--------------+---------------------------------------------|
| #LCD2 | "STRING string is displayed on LCD line 2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MODE SELECTION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #CLS=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects which mode the modem will operate |
| | in. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| #CLS=0 | Modem will operate in data mode. |
|--------------+---------------------------------------------|
| #CLS=1 | Modem will operate in fax class I mode. |
|--------------+---------------------------------------------|
| #CLS=2 | Modem will operate in fax class II mode. |
|--------------+---------------------------------------------|
| #CLS=8 | Modem will operate in voice mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SELECT DATA, FAX, OR VOICE/AUDIO |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #CLSn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects data, fax, or voice/audio |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| #CLS0 | Select data mode |
|--------------+---------------------------------------------|
| #CLS1 | Select class 1 fax |
|--------------+---------------------------------------------|
| #CLS2 | Select class 2 fax |
|--------------+---------------------------------------------|
| #CLS8 | Select voice/audio mode |
|--------------+---------------------------------------------|
| #CLS8 | Select online voice command mode |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TOTAL VOLUME GAIN |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] L:nn [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the total volume gain adjustment |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í L:=00 | Lowest gain |
|--------------+---------------------------------------------|
| L:=31 | Highest gain |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VOICE DEVICE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #VLS=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the I/O device for the DSP chip. |
|--------------+---------------------------------------------|
| Note: | This modem may not support all options |
| | listed below. The #VLS? Command will |
| | display the available options. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í #VLS=0 | Telephone line and handset used for voice |
| | I/O. |
|--------------+---------------------------------------------|
| #VLS=1 | Telephone handset used for voice I/O. |
|--------------+---------------------------------------------|
| #VLS=2 | Internal speaker only used for voice I/O. |
|--------------+---------------------------------------------|
| #VLS=3 | External microphone only used for voice |
| | I/O. |
|--------------+---------------------------------------------|
| #VLS=4 | Telephone line and handset used for voice |
| | I/O; internal speaker enabled. |
|--------------+---------------------------------------------|
| #VLS=5 | Headset used for voice I/O. |
|--------------+---------------------------------------------|
| #VLS=6 | Speakerphone used for voice I/O. |
|--------------+---------------------------------------------|
| #VLS=7 | Handset muted by disconnecting handset or |
| | speakerphone from telephone line. |
|--------------+---------------------------------------------|
| #VLS=8 | Connects caller ID relay for recording of |
| | conversation over handset. |
|--------------+---------------------------------------------|
| #VLS=9 | Connects handset (or speakerphone) to DSP |
| | chip for recording or playback. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VOICE DEVICE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #VLS=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the I/O device for the DSP chip. |
|--------------+---------------------------------------------|
| Note: | This modem may not support all options |
| | listed below. The #VLS? Command will |
| | display the available options. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í #VLS=0 | Telephone line and handset used for voice |
| | I/O. |
|--------------+---------------------------------------------|
| #VLS=1 | Telephone handset used for voice I/O. |
|--------------+---------------------------------------------|
| #VLS=2 | Internal speaker only used for voice I/O. |
|--------------+---------------------------------------------|
| #VLS=3 | External microphone only used for voice |
| | I/O. |
|--------------+---------------------------------------------|
| #VLS=4 | Telephone line and handset used for voice |
| | I/O; internal speaker enabled. |
|--------------+---------------------------------------------|
| #VLS=5 | Headset used for voice I/O. |
|--------------+---------------------------------------------|
| #VLS=6 | Speakerphone used for voice I/O. |
|--------------+---------------------------------------------|
| #VLS=7 | Handset muted by disconnecting handset or |
| | speakerphone from telephone line. |
|--------------+---------------------------------------------|
| #VLS=8 | Connects caller ID relay for recording of |
| | conversation over handset. |
|--------------+---------------------------------------------|
| #VLS=9 | Connects handset (or speakerphone) to DSP |
| | chip for recording or playback. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VOICE RING DETECT TIME |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #VRN=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Sets the maximum time the modem will wait |
| | for the remote station to ring before it |
| | assumes that it went off-hook before it |
| | rang. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í #VLS=0 | Disables the "ringback never came timer" |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VOICE RING DETECT TIME |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] #VRN=n [cmds] |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | Unidentified |
|--------------+---------------------------------------------|
| Unit: | Unidentified |
|--------------+---------------------------------------------|
| Description: | Sets the maximum time the modem will wait |
| | for the remote station to ring before it |
| | assumes that it went off-hook before it |
| | rang. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í #VRN=0 | Turns off the ringback never came timer. |
| | After dialing the modem sends VCON and |
| | immediately enters online voice command |
| | control |
+------------------------------------------------------------+
V.25ter AT COMMANDS
+------------------------------------------------------------+
| ERROR CONTROL SELECTION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] +ESn, m, o, [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the error control setting |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| n=0 | Direct mode |
|--------------+---------------------------------------------|
| n=1 | Buffered mode |
|--------------+---------------------------------------------|
| n=2 | Initiate V.42 without detection |
|--------------+---------------------------------------------|
| n=3 | Initiate V.42 with detection |
|--------------+---------------------------------------------|
| n=4 | Alternate protocol (MNP) |
|--------------+---------------------------------------------|
| n=5 | Initiate with synchronous mode |
|--------------+---------------------------------------------|
| n=6 | Initiate with V.80 synchronous access mode |
|--------------+---------------------------------------------|
| m=0 | Error control optional; if error control is |
| | not established, maintain DTE-DCE data rate |
| | to match line rate and use buffered mode |
| | with flow control. |
|--------------+---------------------------------------------|
| m=1 | Error control optional; if error control is |
| | not established, change DTE-DCE data rate |
| | to match line rate and use direct mode |
|--------------+---------------------------------------------|
| m=2 | Error control required; if no LAPM, |
| | disconnect |
|--------------+---------------------------------------------|
| m=3 | MNP required; if no MNP, disconnect |
|--------------+---------------------------------------------|
| o=0 | Direct mode |
|--------------+---------------------------------------------|
| o=1 | EC disabled, buffered mode |
|--------------+---------------------------------------------|
| o=3 | EC optional; if no EC, use direct mode |
|--------------+---------------------------------------------|
| o=4 | Error control required; if no EC, |
| | disconnect |
|--------------+---------------------------------------------|
| o=5 | Error control optional; if no EC, |
| | disconnect |
|--------------+---------------------------------------------|
| o=6 | MNP error control required, if no MNP, |
| | disconnect |
|--------------+---------------------------------------------|
| o=7 | Synchronous mode |
|--------------+---------------------------------------------|
| o=8 | V.80 synchronous access mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INPUT BUFFER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Cn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the input buffer size. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| n=0 | 10 - 759 bytes |
|--------------+---------------------------------------------|
| o=0 | 11 - 760 bytes |
|--------------+---------------------------------------------|
| p=0 | Disables transmit level reporting |
|--------------+---------------------------------------------|
| q=0 | Sets the lowest carrier rate that may be |
| | used |
|--------------+---------------------------------------------|
| r=0 | Sets the maximum carrier rate that may be |
| | used |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MANUFACTURER ID |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] +GMI [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the manufacturer ID |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MODEL ID |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] +GMM [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the model ID |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REQUEST CAPABILITIES LIST |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] +GCAP [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays one or more lines of information |
| | reporting the V.25ter commands available in |
| | the modem |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ROM CODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] +GMRn, o, p, q, r [cmds] |
|--------------+---------------------------------------------|
| Description: | Display the ROM code |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SELECTIVE REPEAT |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] +ESRn [cmds] |
|--------------+---------------------------------------------|
| Description: | Control selective repeat |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| +ESR0 | Do not use SREJ |
|--------------+---------------------------------------------|
| +ESR1 | Use SREJ if available in remote DCE; |
| | continue without it if not |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SYNCHRONOUS ACCESS MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] +ESAn, m, o, p, q, r, s, t [cmds] |
|--------------+---------------------------------------------|
| Description: | Specifies the bit sequence transmitted by |
| | the DCE when a transmit data buffer |
| | underrun condition occures while operating |
| | in transparent sub-mode |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| n=0 | In transparent sub-mode, the DCE transmits |
| | SYN1 on idle. DCE receiver does not seek |
| | synchronization sequence |
|--------------+---------------------------------------------|
| n=0 | In transparent sub-mode, the DCE transmits |
| | SYN1 on idle. DCE receiver seeks SYN1 as a |
| | synchronization sequence |
|--------------+---------------------------------------------|
| m=0 | In framed sub-mode, the DCE transmits HDLC |
| | flage on idle |
|--------------+---------------------------------------------|
| m=0 | In framed sub-mode, the DCE transmits marks |
| | on idle |
|--------------+---------------------------------------------|
| o=0 | In framed sub-mode, DCE transmits HDLC |
| | abort when underrun during a frame |
|--------------+---------------------------------------------|
| o=0 | In framed sub-mode, the DCE transmits HDLC |
| | flag when underrun during a frame |
|--------------+---------------------------------------------|
| p=0 | Half duplex V.34 carriers are not |
| | supported. Value must be 0 |
|--------------+---------------------------------------------|
| q=0 | CRC generation and checking disabled |
|--------------+---------------------------------------------|
| | |
|--------------+---------------------------------------------|
| r=0 | NRZI encoding and decoding disabled |
|--------------+---------------------------------------------|
| r=0 | NRZI encoding and decoding enabled |
|--------------+---------------------------------------------|
| s=0 | Specifies the 8-bit transparent sub-mode |
| | synchronization sequence and idle |
| | transmission value. |
|--------------+---------------------------------------------|
| T=0 | Specifies the 16-bit synchronization |
| | sequences are not supported. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.42bis DATA COMPRESSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] +DSn, m, o, p [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls the V.42bis data compression |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| n=0 | Disabled |
|--------------+---------------------------------------------|
| n=1 | Compression on transmit only |
|--------------+---------------------------------------------|
| n=2 | Compression on receive only |
|--------------+---------------------------------------------|
| n=3 | Bi-directional compression |
|--------------+---------------------------------------------|
| m=0 | Do not require V>42bis compression when |
| | connecting |
|--------------+---------------------------------------------|
| o=0 | V.43bis dictionary size for bi-directional |
| | compression |
|--------------+---------------------------------------------|
| o=1 | V.42bis maximum dictionary size for |
| | bi-directional compression |
|--------------+---------------------------------------------|
| p=0 | Maximum V.42bis string size |
+------------------------------------------------------------+