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# MULTI-TECH SYSTEMS, INC.
MT56128ZLX-NT, MT56128ZLX-ST
Card Type ISDN TA
Chip Set Unidentified
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.32bis, V.34, K56flex
ISDN Data Rate 128Kbps
ISDN Modulation V.110, V.120, X.75, ML-PPP, PPP
Protocol
Error Unidentified
Correction/Compression
Data Bus PCMCIA
55291
+---------------------------------------------------------+
| SUPPORTED COMMAND SET |
|---------------------------------------------------------|
| Basic AT Commands |
|---------------------------------------------------------|
| AT, ‘+++’ |
|---------------------------------------------------------|
| A, E |
|---------------------------------------------------------|
| &F, &V, &Z |
|---------------------------------------------------------|
| |
|---------------------------------------------------------|
| Note: See MHI Help File for full command documentation. |
+---------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| CONVERSION LINK |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &N0=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Loads user profiles into active RAM |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &N0=0 | Set single-link mode for async to sync PPP |
| | conversion |
|--------------+---------------------------------------------|
| &N0=1 | Set multi-link mode for async to sync PPP |
| | conversion |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DIAL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] D<#> [cmds] |
|--------------+---------------------------------------------|
| Description: | Dials ISDN telephone number according to |
| | any modifiers included in the string |
|--------------+---------------------------------------------|
| Note: | Any combination of modifiers can be used to |
| | produce the desired dial functions in |
| | sequence. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| DSn | Dial stored telephone number n |
|--------------+---------------------------------------------|
| DM | Modem calls over ISDN line |
|--------------+---------------------------------------------|
| DT | Dials out the ISDN number |
|--------------+---------------------------------------------|
| DV | ISDN voice calls enabled |
|--------------+---------------------------------------------|
| DL | Re-dial last ISDN number |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HOOK CONTROL |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Hn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects ISDN disconnect |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| H0 | Modem commanded to go on-hook (hang-up) |
|--------------+---------------------------------------------|
| H1 | Modem commanded to disconnect ISDN voice |
| | calls |
|--------------+---------------------------------------------|
| H3 | Modem commanded to disconnect ISDN data & |
| | voice calls |
|--------------+---------------------------------------------|
| H4 | Restarts ISDN layer 2 link |
|--------------+---------------------------------------------|
| H5 | View responses |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ISDN/ANALOG |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Gn [cmds] |
|--------------+---------------------------------------------|
| Description: | Toggles between ISDN and analog phone link |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &G0 | Switch from ISDN link to analog line |
|--------------+---------------------------------------------|
| &G1 | Switch from analog to ISDN link |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOAD USER PROFILE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Ln [cmds] |
|--------------+---------------------------------------------|
| Description: | Loads user profiles into active RAM |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &L0 | Load user profile 0 into active RAM |
|--------------+---------------------------------------------|
| &L1 | Load user profile 1 into active RAM |
|--------------+---------------------------------------------|
| &L2 | Load user profile 2 into active RAM |
|--------------+---------------------------------------------|
| &L3 | Load user profile 3 into active RAM |
|--------------+---------------------------------------------|
| &L4 | Load user profile 4 into active RAM |
|--------------+---------------------------------------------|
| &L5 | Load user profile 5 into active RAM |
|--------------+---------------------------------------------|
| &L6 | Load user profile 6 into active RAM |
|--------------+---------------------------------------------|
| &L7 | Load user profile 7 into active RAM |
|--------------+---------------------------------------------|
| &L8 | Load user profile 8 into active RAM |
|--------------+---------------------------------------------|
| &L9 | Load user profile 9 into active RAM |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ON-LINE |
|------------------------------------------------------------|
| Type: | Immediate |
|---------------+--------------------------------------------|
| Format: | AT [cmds] On [cmds] |
|---------------+--------------------------------------------|
| Description: | Controls on-line command (data |
| | transmission) state options. |
|------------------------------------------------------------|
| Note: The O command must be placed at the end of the |
| command string. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| O0 | On-line command mode with no retraining |
| | enabled |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PHONE NUMBERS IN MULTI-LINK PPP |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Jn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects 1 or 2 ISDN phone numbers for |
| | Multi-Link PPP calls |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &J0 | 2 ISDN phone numbers selected for |
| | multi-link PPP calls |
|--------------+---------------------------------------------|
| &J1 | 1 ISDN phone number selected for multi-link |
| | PPP calls |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I3 | OK |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RESTORE PROFILE ON POWER-UP |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Pn [cmds] |
|--------------+---------------------------------------------|
| Description: | Restores a selected profile into the active |
| | profile on power-up (hard reset) |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &P0 | Restore profile 0 on power-up |
|--------------+---------------------------------------------|
| &P1 | Restore profile 1 on power-up |
|--------------+---------------------------------------------|
| &P2 | Restore profile 2 on power-up |
|--------------+---------------------------------------------|
| &P3 | Restore profile 3 on power-up |
|--------------+---------------------------------------------|
| &P4 | Restore profile 4 on power-up |
|--------------+---------------------------------------------|
| &P5 | Restore profile 5 on power-up |
|--------------+---------------------------------------------|
| &P6 | Restore profile 6 on power-up |
|--------------+---------------------------------------------|
| &P7 | Restore profile 7 on power-up |
|--------------+---------------------------------------------|
| &P8 | Restore profile 8 on power-up |
+------------------------------------------------------------+
+------------------------------------------------------------+
| STORE ACTIVE PROFILE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Wn [cmds] |
|--------------+---------------------------------------------|
| Description: | Writes the values for the active profile |
| | into the non-volatile RAM |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &W0 | Write the active profile to stored profile |
| | 0 |
|--------------+---------------------------------------------|
| &W1 | Write the active profile to stored profile |
| | 1 |
|--------------+---------------------------------------------|
| &W2 | Write the active profile to stored profile |
| | 2 |
|--------------+---------------------------------------------|
| &W3 | Write the active profile to stored profile |
| | 3 |
|--------------+---------------------------------------------|
| &W4 | Write the active profile to stored profile |
| | 4 |
|--------------+---------------------------------------------|
| &W5 | Write the active profile to stored profile |
| | 5 |
|--------------+---------------------------------------------|
| &W6 | Write the active profile to stored profile |
| | 6 |
|--------------+---------------------------------------------|
| &W7 | Write the active profile to stored profile |
| | 7 |
|--------------+---------------------------------------------|
| &W8 | Write the active profile to stored profile |
| | 8 |
|--------------+---------------------------------------------|
| &W9 | Write the active profile to stored profile |
| | 9 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.110 DATA RATE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the user rate in V.110 mode |
|--------------+---------------------------------------------|
| Command | Protocol |
|--------------+---------------------------------------------|
| B0 | 600bps |
|--------------+---------------------------------------------|
| B1 | 1200bps |
|--------------+---------------------------------------------|
| B2 | 2400bps |
|--------------+---------------------------------------------|
| B3 | 4800bps |
|--------------+---------------------------------------------|
| B4 | 9600bps |
|--------------+---------------------------------------------|
| B5 | 19.2Kbps |
|--------------+---------------------------------------------|
| B6 | 38.4Kbps |
|--------------+---------------------------------------------|
| B7 | 48.0Kbps |
|--------------+---------------------------------------------|
| B8 | 57.6Kbps (Japan only) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VERIFY HARDWARE |
|------------------------------------------------------------|
| Type: | Immidiate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Kn [cmds] |
|--------------+---------------------------------------------|
| Description: | Verifies TA hardware |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &K0 | Verifies TA hardware. Reports OK or BAD |
+------------------------------------------------------------+
Special Commands
+------------------------------------------------------------+
| B-CHANNEL SPEED |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] !Q=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects B-channel speed |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| !Q=0 | B-channel set to 64Kbps |
|--------------+---------------------------------------------|
| !Q=4 | B-channel set to 56Kbps |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA DIRECTORY NUMBER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] !N1=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0 - 24 |
|--------------+---------------------------------------------|
| Unit: | 0 - 9, *, # |
|--------------+---------------------------------------------|
| Description: | Sets the directory number (DN) 1 for the |
| | data channel |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA DIRECTORY NUMBER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] !N0=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0 - 24 |
|--------------+---------------------------------------------|
| Unit: | 0 - 9, *, # |
|--------------+---------------------------------------------|
| Description: | Sets the directory number (DN) 0 for the |
| | data channel |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA SPID |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] !C6=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0 - 20 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Specifies the data service profile |
| | identifier 0 assigned by the ISDN provider |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DATA SPID |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] !C2=n [cmds] |
|--------------+---------------------------------------------|
| Range: | 0 - 20 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Specifies the data service profile |
| | identifier 1 assigned by the ISDN provider |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ISDN D-CHANNEL PROTOCOL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] !C0=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects network switch type |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| !C0=0 | AT&T 5ESS |
|--------------+---------------------------------------------|
| !C0=1 | Northern Telecom DMS-100 |
|--------------+---------------------------------------------|
| í !C0=2 | Euro-ISDN NET3 |
|--------------+---------------------------------------------|
| !C0=5 | VN4 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| RATE ADAPTION PROTOCOL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] !Z=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Select rate adaption protocol used to |
| | communicate with another TA |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| !Z=5 | V.120 |
|--------------+---------------------------------------------|
| !Z=6 | V.110 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| VOICE-GRADE CALL HANDLING |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] !V=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls voice grade call handling |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| !V=0 | Incoming voice grade calls are answered by |
| | ISDN phone |
|--------------+---------------------------------------------|
| !V=1 | Incoming voice grade calls are answered by |
| | modem |
|--------------+---------------------------------------------|
| !V=2 | Audio speech enabled |
|--------------+---------------------------------------------|
| !V=4 | m -law encoding enabled (Europe) |
|--------------+---------------------------------------------|
| !V=5 | A -law encoding enabled (North America) |
+------------------------------------------------------------+