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# AT&T PARADYNE
KEEPINTOUCH PCMCIA MODEM 3765/3766
Modem Type Data (synchronous/asynchronous)/Fax
Maximum Data Rate 28.8Kbps
Maximum Fax Rate 14.4Kbps
Data Bus PCMCIA Type II
Fax Class Class I & II
Data Modulation Bell 103A/212A
Protocol
ITU-T V.21, V.22, V.22bis, V.23, V.32,
V.32bis, V.34
AT&T ETC cellular protocol
Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29
Protocol
Error MNP5, V.42, V.42bis
Correction/Compression
Proprietary AT Command Set
V1402
+------------------------------------------------------------+
| AUTO-RELIABLE FALLBACK CHARACTER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] %An [cmds] |
|--------------+---------------------------------------------|
| Example: | AT%A20<CR> |
|--------------+---------------------------------------------|
| Default: | 13 |
|--------------+---------------------------------------------|
| Range: | 0-127 |
|--------------+---------------------------------------------|
| Unit: | ASCII |
|--------------+---------------------------------------------|
| Description: | Sets the character used as the |
| | auto-reliable fallback character. %A0 will |
| | disable this function. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| AUTO-RETRAIN |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT S76=n |
|--------------+---------------------------------------------|
| Example: | AT S76=1 <CR> |
|--------------+---------------------------------------------|
| Description: | Selects auto-retrain mode for V.32bis. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » S76=0 | Auto-retrain enabled. |
|--------------+---------------------------------------------|
| S76=1 | Auto-retrain disabled. |
|--------------+---------------------------------------------|
| S76=2 | Auto-retrain enabled; speed defaults to |
| | 4800bps. |
|--------------+---------------------------------------------|
| S76=3 | Auto-retrain enabled; speed defaults to |
| | 9600bps. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BREAK TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Kn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \K1 <CR> |
|--------------+---------------------------------------------|
| Description: | Configures action of break signal. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \K0 | Buffers cleared and break sent to remote |
| | modem, then enter command mode. |
|--------------+---------------------------------------------|
| \K1 | Buffers cleared and break sent to remote |
| | modem. |
|--------------+---------------------------------------------|
| \K2 | Send break to remote modem immediately, |
| | then enter command mode. |
|--------------+---------------------------------------------|
| \K3 | Send break to remote modem immediately. |
|--------------+---------------------------------------------|
| \K4 | Send break to remote modem with transmitted |
| | data, then enter command mode. |
|--------------+---------------------------------------------|
| » \K5 | Send break to remote modem with transmitted |
| | data. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CELLULAR PHONE TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT )Cn |
|--------------+---------------------------------------------|
| Example: | AT )C1<CR> |
|--------------+---------------------------------------------|
| Description: | Selects the type of cellular phone that the |
| | modem is connected to. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » )C0 | Motorola phone in use. |
|--------------+---------------------------------------------|
| )C1 | NEC P100 series or AT&T 3610 phone in use. |
|--------------+---------------------------------------------|
| )C2 | OKI 900, 1145, or 1150 or AT&T 3710, 3730, |
| | or 3760 phone in use. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMPRESSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT %Cn |
|--------------+---------------------------------------------|
| Example: | AT *EC0 %C1 *AP0<CR> |
|--------------+---------------------------------------------|
| Description: | Selects data compression. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| %C0 | Data compression disabled. |
|--------------+---------------------------------------------|
| » %C1 | Data compression enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CONNECT MODE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Nn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \N1 DT555-1212<CR> |
|--------------+---------------------------------------------|
| Description: | Sets connect mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \N0 | Normal mode enabled. |
|--------------+---------------------------------------------|
| \N1 | Direct mode enabled. |
|--------------+---------------------------------------------|
| \N2 | MNP mode only enabled. |
|--------------+---------------------------------------------|
| \N4 | LAP-M mode only enabled. |
|--------------+---------------------------------------------|
| \N6 | LAP-M mode with fallback to MNP enabled. |
|--------------+---------------------------------------------|
| \N7 | LAP-M mode with fallback to MNP and normal |
| | modes enabled. |
|--------------+---------------------------------------------|
| » \N8 | For 4800bps and above, use \N4. Use \N7 for |
| | lower speeds. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| FLOW CONTROL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Gn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \G1 &K3<CR> |
|--------------+---------------------------------------------|
| Description: | Selects modem port flow control. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \G0 | Flow control disabled. |
|--------------+---------------------------------------------|
| \G1 | Flow control enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INACTIVITY TIMER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Tn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT\T20<CR> |
|--------------+---------------------------------------------|
| Default: | Unidentified |
|--------------+---------------------------------------------|
| Range: | 0-255 |
|--------------+---------------------------------------------|
| Unit: | 1 minute |
|--------------+---------------------------------------------|
| Description: | Sets the length of time that the modem does |
| | not receive information before it |
| | disconnects. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCK SERIAL PORT |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S90=n [cmds] |
|--------------+---------------------------------------------|
| Example: | AT %L3 %B14 S90=0<CR> |
|--------------+---------------------------------------------|
| Description: | Sets operation of serial port speed. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » S90=0 | Serial speed locked. |
|--------------+---------------------------------------------|
| S90=1 | Serial speed follows connect speed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MAXIMUM BLOCK SIZE FOR TRANSMISSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \An [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \A3 %C1<CR> |
|--------------+---------------------------------------------|
| Description: | Sets the maximum transmittable block size. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \A0 | MNP block size is 64 characters. |
|--------------+---------------------------------------------|
| \A1 | MNP block size is 128 characters. |
|--------------+---------------------------------------------|
| \A2 | MNP block size is 192 characters. |
|--------------+---------------------------------------------|
| » \A3 | MNP block size is 256 characters. |
|--------------+---------------------------------------------|
| \A4 | MNP block size is 32 characters. |
|--------------+---------------------------------------------|
| \A5 | MNP block size is 16 characters. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| NEGOTIATE PROTOCOL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT S78=n |
|--------------+---------------------------------------------|
| Example: | AT S78=1 <CR> |
|--------------+---------------------------------------------|
| Description: | Configures whether the modem will attempt |
| | to negotiate protocols or if only the |
| | protocol selected in %Bn will be used. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » S78=0 | Negotiation enabled. |
|--------------+---------------------------------------------|
| S78=1 | Negotiation disabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REPORT INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Example: | AT I3 &V1 %V<CR> |
|--------------+---------------------------------------------|
| Description: | Displays modem properties. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Reports product code. |
|--------------+---------------------------------------------|
| I1 | Reports firmware version in short form. |
|--------------+---------------------------------------------|
| I2 | Reports firmware checksum result. |
|--------------+---------------------------------------------|
| I19 | Reports firmware version in long form. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SWITCHED LINE TRANSMISSION LEVEL |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &In [cmds] |
|--------------+---------------------------------------------|
| Example: | AT &I15<CR> |
|--------------+---------------------------------------------|
| Default: | 9 |
|--------------+---------------------------------------------|
| Range: | 10 - 25 |
|--------------+---------------------------------------------|
| Unit: | -1 dBm |
|--------------+---------------------------------------------|
| Description: | Sets the signal level for transmission when |
| | in switched line mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| XON/XOFF PASS-THROUGH |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Xn [cmds] |
|--------------+---------------------------------------------|
| Example: | AT \X7 O<CR> |
|--------------+---------------------------------------------|
| Description: | Selects whether XON/XOFF signals are sent |
| | to remote modem. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| » \X0 | XON/XOFF signals trapped by local modem. |
|--------------+---------------------------------------------|
| \X1 | XON/XOFF passed through local modem. |