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# MOTOROLA, INC.
MONTANA
Card Type Modem (asynchronous/synchronous)
Chip Set Unidentified
Maximum Data Rate 33.6Kbps
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 V.32terbo
Fax Modulation ITU-T V.17, V.21CH2, V.27ter, V.29
Protocol
Error MNP5, V.42, V.42bis, ETC
Correction/Compression
53726
+------------------------------------------------------------+
| SUPPORTED STANDARD COMMANDS |
|------------------------------------------------------------|
| Basic AT Commands |
|------------------------------------------------------------|
| +++, ‘comma’, A/ |
|------------------------------------------------------------|
| A, D, E, H, M, N, P, Q, T, V, W, X, Z |
|------------------------------------------------------------|
| &C, &D, &F, &G, &K, &L, &M, &P, &R, &S, &T, &V, &W, &Y, &Z |
|------------------------------------------------------------|
| Extended AT Commands |
|------------------------------------------------------------|
| \B, \C, \G, \J, \N, \Q, \T, \V, \X |
|------------------------------------------------------------|
| %A, %C, %G |
|------------------------------------------------------------|
| Special AT Commands |
|------------------------------------------------------------|
| "H, -J, "N, "O |
|------------------------------------------------------------|
| S-Registers |
|------------------------------------------------------------|
| S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, |
| S18, S25, S26 |
|------------------------------------------------------------|
| Note: See MHI documentation for complete information. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| UNIDENTIFIED COMMANDS |
|------------------------------------------------------------|
| Command | Default |
|----------------------------+-------------------------------|
| S70 | Unidentified |
+------------------------------------------------------------+
Proprietary AT Command Set
+------------------------------------------------------------+
| AUTO-RELIABLE FALLBACK CHARACTER |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S43=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 13 |
|--------------+---------------------------------------------|
| Range: | 0-127 |
|--------------+---------------------------------------------|
| Unit: | 1 ASCII character |
|--------------+---------------------------------------------|
| Description: | Sets the character used as the |
| | auto-reliable fallback character; S43=0 |
| | will disable this function. |
+------------------------------------------------------------+
+----------------------------------------------------------------+
| BREAK TYPE |
|----------------------------------------------------------------|
|Type: |Configuration |
|------------------+---------------------------------------------|
|Format: |AT [cmds] \Kn [cmds] |
|------------------+---------------------------------------------|
|Description: |Configures action of break signal |
|----------------------------------------------------------------|
| Command |Break from DTE | Break from | Modem | Break from |
| | | DTE |receives \B |remote modem|
| |Reliable/Normal| | | |
| | mode |Direct mode | | |
|---------+---------------+------------+------------+------------|
| \K0 |Enter command |Send break |Buffers |Buffers |
| |mode, do not |to remote |cleared and |cleared and |
| |send break to |modem |break sent |break sent |
| |remote modem. |immediately,|to remote |to DTE. |
| | |then enter |modem. | |
| | |command | | |
| | |mode. | | |
|---------+---------------+------------+------------+------------|
| \K1 |Buffers cleared|Send break |Buffers |Buffers |
| |and break sent |to remote |cleared and |cleared and |
| |to remote |modem |break sent |break sent |
| |modem. |immediately.|to remote |to DTE. |
| | | |modem. | |
|---------+---------------+------------+------------+------------|
| \K2 |Enter command |Send break |Send break |Send break |
| |mode, do not |to remote |to remote |to DTE |
| |send break to |modem |modem |immediately.|
| |remote modem. |immediately,|immediately.| |
| | |then enter | | |
| | |command | | |
| | |mode. | | |
|---------+---------------+------------+------------+------------|
| \K3 |Send break to |Send break |Send break |Send break |
| |remote modem |to remote |to remote |to DTE |
| |immediately. |modem |modem |immediately.|
| | |immediately.|immediately.| |
|---------+---------------+------------+------------+------------|
| \K4 |Enter command |Send break |Send break |Break sent |
| |mode, do not |to remote |to remote |with |
| |send break to |modem |modem with |received |
| |remote modem. |immediately,|transmitted |data to the |
| | |then enter |data. |DTE. |
| | |command | | |
| | |mode. | | |
|---------+---------------+------------+------------+------------|
| í \K5 |Send break with|Send break |Send break |Break sent |
| |transmitted |to remote |to remote |with |
| |data. |modem |modem with |received |
| | |immediately.|transmitted |data to the |
| | | |data. |DTE. |
+----------------------------------------------------------------+
+------------------------------------------------------------+
| CELLULAR PHONE TYPE |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \Pn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the type of cellular phone the |
| | modem is connected to. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| \P1 | Modem is connected to OKI phone. |
|---------------+--------------------------------------------|
| \P2 | Modem is connected to NEC phone. |
|---------------+--------------------------------------------|
| \P3 | Modem is connected to Motorola phone. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMMUNICATION PROTOCOLS |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects the communication protocol for |
| | low-speed data calls. |
|--------------+---------------------------------------------|
| Command | Protocol |
|--------------+---------------------------------------------|
| B0 | Modem will use ITU-T V.22 at 1200bps. |
|--------------+---------------------------------------------|
| í B1 | Modem will use Bell 212A at 1200bps. |
|--------------+---------------------------------------------|
| B2 | Modem will use ITU-T V.23 at 1200/75bps. |
|--------------+---------------------------------------------|
| B3 | Modem will use ITU-T V.23 at 75/1200bps. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY CELLULAR INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information about the current |
| | cellular connection. |
|--------------+---------------------------------------------|
| Note: | This command will only function if the |
| | attached cellular phone is manufactured by |
| | Motorola. |
|------------------------------------------------------------|
| Command | Function |
|------------------+-----------------------------------------|
| &I0 | Displays received signal strength. |
|------------------+-----------------------------------------|
| &I1 | Displays the service provider of the |
| | currently locked-on cell. |
|------------------+-----------------------------------------|
| &I2 | Displays your chosen home service |
| | provider. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DISPLAY INFORMATION |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] In [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays information requested about the |
| | modem. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| I0 | Displays product identification code. |
|--------------+---------------------------------------------|
| I1 | Displays first 64KB ROM page checksum |
| | result. |
|--------------+---------------------------------------------|
| I2 | Tests and displays flash RAM checksum |
| | result. |
|--------------+---------------------------------------------|
| I3 | Displays a value which indicates the type |
| | of ROM the modem has. |
|--------------+---------------------------------------------|
| | Value | Meaning |
|--------------+-------+-------------------------------------|
| | F3C3 | Modem contains Intel ROMs. |
|--------------+-------+-------------------------------------|
| | 0120 | Modem contains AMD ROMs. |
|--------------+-------+-------------------------------------|
| | 1FD5 | Modem contains Amtel ROMs. |
|--------------+---------------------------------------------|
| I4 | Displays modem serial number and |
| | manufacture date. |
|--------------+---------------------------------------------|
| I6 | Displays a string which indicates modem |
| | functions. |
|--------------+---------------------------------------------|
| | Value | Meaning |
|--------------+-------+-------------------------------------|
| | a | Cellular auto-detect performed with |
| | | software. |
|--------------+-------+-------------------------------------|
| | A | Cellular auto-detect performed with |
| | | hardware. |
|--------------+-------+-------------------------------------|
| | e | ETC disabled. |
|--------------+-------+-------------------------------------|
| | E | ETC enabled. |
|--------------+-------+-------------------------------------|
| | f | THR FIFO is disabled. |
|--------------+-------+-------------------------------------|
| | F | THR FIFO is enabled. |
|--------------+-------+-------------------------------------|
| | k | Modem will set local serial port to |
| | | 115.2Kbps if 115.2Kbps is |
| | | requested. |
|--------------+-------+-------------------------------------|
| | K | Modem will set local serial port to |
| | | 230.4Kbps if 115.2Kbps is |
| | | requested. |
|--------------+-------+-------------------------------------|
| | M | Modem configured for Motorola |
| | | cellular phone. |
|--------------+-------+-------------------------------------|
| | N | Modem configured for NEC cellular |
| | | phone. |
|--------------+-------+-------------------------------------|
| | O | Modem configured for OKI cellular |
| | | phone. |
|--------------+-------+-------------------------------------|
| | p | Digital line guard protection |
| | | disabled. |
|--------------+-------+-------------------------------------|
| | P | Digital line guard protection |
| | | enabled. |
|--------------+-------+-------------------------------------|
| | s | Paging capability disabled. |
|--------------+-------+-------------------------------------|
| | S | Paging capability enabled. |
|--------------+---------------------------------------------|
| I7 | Displays second 64KB ROM page checksum |
| | result. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| EXTENDED THROUGHPUT CELLULAR |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \E [cmds] |
|--------------+---------------------------------------------|
| Description: | Toggles the ETC protocol on and off. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| HELP SCREENS |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] $x [cmds] |
|--------------+---------------------------------------------|
| Description: | Displays the help screen selected. |
|------------------------------------------------------------|
| Command | Function |
|---------------+--------------------------------------------|
| $ | Displays help on basic AT commands. |
|---------------+--------------------------------------------|
| $& | Displays help on AT& commands. |
|---------------+--------------------------------------------|
| $\ | Displays help on AT\ commands. |
|---------------+--------------------------------------------|
| $% | Displays help on AT% commands. |
|---------------+--------------------------------------------|
| $" | Displays help on AT" commands. |
|---------------+--------------------------------------------|
| $S | Displays help on S-registers. |
|---------------+--------------------------------------------|
| $M | Displays miscellaneous help screens. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LINE SPEED |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S37=n [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the maximum allowable data exchange |
| | rate attempted during the handshaking |
| | process. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| í S37=0 | Attempt to connect at fastest common speed. |
|--------------+---------------------------------------------|
| S37=3 | Set speed to 300bps. |
|--------------+---------------------------------------------|
| S37=5 | Set speed to 1200bps. |
|--------------+---------------------------------------------|
| S37=6 | Set speed to 2400bps. |
|--------------+---------------------------------------------|
| S37=7 | Set speed to 4800bps. |
|--------------+---------------------------------------------|
| S37=8 | Set speed to 7200bps. |
|--------------+---------------------------------------------|
| S37=9 | Set speed to 9600bps. |
|--------------+---------------------------------------------|
| S37=10 | Set speed to 12Kbps. |
|--------------+---------------------------------------------|
| S37=11 | Set speed to 14.4Kbps. |
|--------------+---------------------------------------------|
| S37=12 | Set speed to 16.8Kbps. |
|--------------+---------------------------------------------|
| S37=13 | Set speed to 19.2Kbps. |
|--------------+---------------------------------------------|
| S37=14 | Set speed to 21.6Kbps. |
|--------------+---------------------------------------------|
| S37=15 | Set speed to 24Kbps. |
|--------------+---------------------------------------------|
| S37=16 | Set speed to 26.4Kbps. |
|--------------+---------------------------------------------|
| S37=17 | Set speed to 28.8Kbps. |
|--------------+---------------------------------------------|
| S37=18 | Set speed to 31.2Kbps. |
|--------------+---------------------------------------------|
| S37=19 | Set speed to 33.6Kbps. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCAL SERIAL PORT SPEED - CURRENT |
|------------------------------------------------------------|
| Type: | Register (read-only) |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S62? [cmds] |
|--------------+---------------------------------------------|
| Description: | Returns a value indicating the current |
| | speed of the local serial port. |
|------------------------------------------------------------|
| Value | Meaning |
|-----------------+------------------------------------------|
| 0 | Serial port speed is 300bps. |
|-----------------+------------------------------------------|
| 1 | Serial port speed is 600bps. |
|-----------------+------------------------------------------|
| 2 | Serial port speed is 1200bps. |
|-----------------+------------------------------------------|
| 3 | Serial port speed is 2400bps. |
|-----------------+------------------------------------------|
| 4 | Serial port speed is 4800bps. |
|-----------------+------------------------------------------|
| 5 | Serial port speed is 7200bps. |
|-----------------+------------------------------------------|
| 6 | Serial port speed is 9600bps. |
|-----------------+------------------------------------------|
| 7 | Serial port speed is 12Kbps. |
|-----------------+------------------------------------------|
| 8 | Serial port speed is 14.4Kbps. |
|-----------------+------------------------------------------|
| 9 | Serial port speed is 16.8Kbps. |
|-----------------+------------------------------------------|
| 10 | Serial port speed is 19.2Kbps. |
|-----------------+------------------------------------------|
| 11 | Serial port speed is 21.6Kbps. |
|-----------------+------------------------------------------|
| 12 | Serial port speed is 24Kbps. |
|-----------------+------------------------------------------|
| 13 | Serial port speed is 26.4Kbps. |
|-----------------+------------------------------------------|
| 14 | Serial port speed is 28.8Kbps. |
|-----------------+------------------------------------------|
| 15 | Serial port speed is 38.4Kbps. |
|-----------------+------------------------------------------|
| 16 | Serial port speed is 57.6Kbps. |
|-----------------+------------------------------------------|
| 17 | Serial port speed is 115.2Kbps or |
| | 230.4Kbps (see -A7 command). |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCAL SERIAL PORT SPEED - DATA TRANSFER |
|------------------------------------------------------------|
| Type: | Register (read-only) |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S72? [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the speed of the local serial port |
| | during data transfer. |
|------------------------------------------------------------|
| Value | Meaning |
|-----------------+------------------------------------------|
| S72=0 | Set serial port to speed of last AT |
| | command. |
|-----------------+------------------------------------------|
| S72=1 | Set serial port speed to 300bps. |
|-----------------+------------------------------------------|
| S72=2 | Set serial port speed to 600bps. |
|-----------------+------------------------------------------|
| S72=3 | Set serial port speed to 1200bps. |
|-----------------+------------------------------------------|
| S72=4 | Set serial port speed to 2400bps. |
|-----------------+------------------------------------------|
| S72=5 | Set serial port speed to 4800bps. |
|-----------------+------------------------------------------|
| S72=6 | Set serial port speed to 7200bps. |
|-----------------+------------------------------------------|
| S72=7 | Set serial port speed to 9600bps. |
|-----------------+------------------------------------------|
| S72=8 | Set serial port speed to 12Kbps. |
|-----------------+------------------------------------------|
| S72=9 | Set serial port speed to 14.4Kbps. |
|-----------------+------------------------------------------|
| S72=10 | Set serial port speed to 16.8Kbps. |
|-----------------+------------------------------------------|
| S72=11 | Set serial port speed to 19.2Kbps. |
|-----------------+------------------------------------------|
| S72=12 | Set serial port speed to 21.6Kbps. |
|-----------------+------------------------------------------|
| S72=13 | Set serial port speed to 24Kbps. |
|-----------------+------------------------------------------|
| S72=14 | Set serial port speed to 26.4Kbps. |
|-----------------+------------------------------------------|
| S72=15 | Set serial port speed to 28.8Kbps. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCAL SERIAL PORT SPEED - DATA TRANSFER (CON'T) |
|------------------------------------------------------------|
| Command | Function |
|----------+-------------------------------------------------|
| S72=16 | Set serial port speed to 38.4Kbps. |
|----------+-------------------------------------------------|
| í S72=17 | Set serial port speed to 57.6Kbps. |
|----------+-------------------------------------------------|
| S72=18 | Set serial port speed to 115.2Kbps or 230.4Kbps |
| | (see -A7 command). |
|----------+-------------------------------------------------|
| S72=19 | Set serial port speed to 31.2Kbps. |
|----------+-------------------------------------------------|
| S72=20 | Set serial port speed to 33.6Kbps. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| LOCAL SERIAL PORT SPEED MODIFICATION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -A7n [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects what speed the local serial port |
| | will operate at when 115.2Kbps is selected. |
|------------------------------------------------------------|
| Command | Function |
|-----------------+------------------------------------------|
| í -A70 | Local serial port speed will be set to |
| | 230.4Kbps when 115.2Kbps is selected. |
|-----------------+------------------------------------------|
| -A71 | Local serial port speed will be set to |
| | 115.2Kbps when 115.2Kbps is selected. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MAXIMUM BLOCK SIZE FOR TRANSMISSION |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] \An [cmds] |
|--------------+---------------------------------------------|
| Description: | Sets the maximum transmittable block size |
| | in MNP mode. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| \A0 | Maximum MNP block size is 64 characters. |
|--------------+---------------------------------------------|
| \A1 | Maximum MNP block size is 128 characters. |
|--------------+---------------------------------------------|
| \A2 | Maximum MNP block size is 192 characters. |
|--------------+---------------------------------------------|
| í \A3 | Maximum MNP block size is 256 characters. |
|--------------+---------------------------------------------|
| \A4 | Maximum MNP block size is 32 characters. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MODE SELECTION |
|------------------------------------------------------------|
| Type: | Register (read-only) |
|--------------+---------------------------------------------|
| Format: | AT [cmds] S50? [cmds] |
|--------------+---------------------------------------------|
| Description: | Returns a value which indicates the mode |
| | the modem is operating in. |
|------------------------------------------------------------|
| Value | Meaning |
|-----------------------+------------------------------------|
| 0 | Modem is in data mode. |
|-----------------------+------------------------------------|
| 1 | Modem is in fax mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| ON-LINE |
|------------------------------------------------------------|
| Type: | Immediate |
|--------------+---------------------------------------------|
| Format: | AT [cmds] On |
|--------------+---------------------------------------------|
| Description: | Instructs the modem to return to on-line |
| | state. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| O0 | Return to on-line state. |
|--------------+---------------------------------------------|
| O1 | Return to on-line state and initiate |
| | retrain sequence. |
|--------------+---------------------------------------------|
| O3 | Return to on-line state and negotiate |
| | 2400bps connection. |
|--------------+---------------------------------------------|
| O4 | Return to on-line state and negotiate |
| | 4800bps connection. |
|--------------+---------------------------------------------|
| O5 | Return to on-line state and negotiate |
| | 7200bps connection. |
|--------------+---------------------------------------------|
| O6 | Return to on-line state and negotiate |
| | 9600bps connection. |
|--------------+---------------------------------------------|
| O7 | Return to on-line state and negotiate |
| | 12Kbps connection. |
|--------------+---------------------------------------------|
| O8 | Return to on-line state and negotiate |
| | 14.4Kbps connection. |
|--------------+---------------------------------------------|
| O9 | Return to on-line state and negotiate |
| | 16.8Kbps connection. |
|--------------+---------------------------------------------|
| O10 | Return to on-line state and negotiate |
| | 19.2Kbps connection. |
|--------------+---------------------------------------------|
| O11 | Return to on-line state and negotiate |
| | 21.6Kbps connection. |
|--------------+---------------------------------------------|
| O12 | Return to on-line state and negotiate |
| | 24Kbps connection. |
|--------------+---------------------------------------------|
| O13 | Return to on-line state and negotiate |
| | 26.4Kbps connection. |
|--------------+---------------------------------------------|
| O14 | Return to on-line state and negotiate |
| | 28.8Kbps connection. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SLEEP TIMER |
|------------------------------------------------------------|
| Type: | Register |
|--------------+---------------------------------------------|
| Format | AT [cmds] S47=n [cmds] |
|--------------+---------------------------------------------|
| Default: | 127 |
|--------------+---------------------------------------------|
| Range: | 0 - 254 |
|--------------+---------------------------------------------|
| Unit: | .1 second |
|--------------+---------------------------------------------|
| Description: | Maximum duration of DTE and DCE inactivity |
| | allowed prior to initiating low-power sleep |
| | mode. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TRANSMIT HOLDING RESGISTER FIFO |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] -On [cmds] |
|--------------+---------------------------------------------|
| Description: | Selects whether the modem's THR FIFO will |
| | be used. |
|------------------------------------------------------------|
| Command | Function |
|--------------------------+---------------------------------|
| í -O0 | THR FIFO disabled. |
|--------------------------+---------------------------------|
| -O1 | THR FIFO enabled. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| V.32 AUTO-RETRAIN |
|------------------------------------------------------------|
| Type: | Configuration |
|--------------+---------------------------------------------|
| Format: | AT [cmds] &Bn [cmds] |
|--------------+---------------------------------------------|
| Description: | Controls auto-retrain function if poor line |
| | quality is detected. |
|--------------+---------------------------------------------|
| Command | Function |
|--------------+---------------------------------------------|
| &B0 | Auto-retrain disabled, modem hangs up. |
|--------------+---------------------------------------------|
| í &B1 | Auto-retrain enabled, modem hangs up if |
| | retrain fails. |
|--------------+---------------------------------------------|
| &B2 | Auto-retrain disabled, modem does not hang |
| | up. |