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 Protocol	Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34 AT&T V.32terbo
Fax Modulation Protocol	ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression	MNP5, V.42, V.42bis, ETC

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

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 Reliable/Normal mode		Break from DTE Direct mode	Modem receives \B	Break from remote modem
\K0	Enter command mode, do not send break to remote modem.		Send break to remote modem immediately, then enter command mode.	Buffers cleared and break sent to remote modem.	Buffers cleared and break sent to DTE.
\K1	Buffers cleared and break sent to remote modem.		Send break to remote modem immediately.	Buffers cleared and break sent to remote modem.	Buffers cleared and break sent to DTE.
\K2	Enter command mode, do not send break to remote modem.		Send break to remote modem immediately, then enter command mode.	Send break to remote modem immediately.	Send break to DTE immediately.
\K3	Send break to remote modem immediately.		Send break to remote modem immediately.	Send break to remote modem immediately.	Send break to DTE immediately.
\K4	Enter command mode, do not send break to remote modem.		Send break to remote modem immediately, then enter command mode.	Send break to remote modem with transmitted data.	Break sent with received data to the DTE.
í \K5	Send break with transmitted data.		Send break to remote modem immediately.	Send break to remote modem with transmitted data.	Break sent with received data to the 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.