Card Type	Modem/Fax card
Chip Set	Unidentified
Maximum Modem Rate	14.4Kbps
Maximum Fax Rate	14.4Kbps
Data Modulation Protocol	Bell 103A/212A ITU-T V.32bis, V.32, V.22bis, V.22, V.21
Fax Modulation Protocol	ITU-T V.17, V.27ter, V.29
Error Correction/Compression	MNP5, V.42, V.42bis
Fax Class	Unidentified
Data Bus	PCMCIA

SUPPORTED COMMAND SET

Basic AT Commands

AT, +++, A/

A, B, C, E, F, H, M, O, P, Q, T, V, X, Y, Z

&C, &F, &G &R, &T, &V, &W, &Y, &Z

Extended AT Commands

\A, \B, \C, \G, \J, \O, \T, \U, \X, \Y, \Z

%A, %G, %Q

-C, -J

"H, "O

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S26, S90, S108, S109

Note: See MHI Help File for full command documentation.

BUFFER CONTROL
Type:	Configuration
Format:	AT [cmds] Kn [cmds]
Description:	Enables/disables SRAM buffer
Command	Function
K0	SRAM buffer disabled
í K1	SRAM buffer enabled

DATA RATE HANDSHAKE
Type:	Configuration
Format:	AT [cmds] Nn [cmds]
Description:	Selects various options for the negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed.
Command	Function
N0	In originate or answer mode, handshake at line speed designated by the S37 register
N1	In originate or answer mode, handshake begins at line speed designated by the S37 register. Modem can shift to a slower speed if necessary.

DATA SET READY (DSR)
Type:	Configuration
Format:	AT [cmds] &Sn [cmds]
Description:	Selects DSR options
Command	Function
í &S0	DSR forced high
&S1	DSR high only while modem is handshaking or connected

DATA TERMINAL READY (DTR)
Type:	Configuration
Format:	AT [cmds] &Dn [cmds]
Description:	Selects modem response to DTR
Command	Function
&D0	DTR disabled in asynchronous mode (&Q0)
&D1	DTR toggle causes online command mode
í &D2	Normal DTR operations
&D3	Resets on receipt of DTR

DIAL
Type:	Immediate
Format:	AT [cmds] D<#> [cmds]
Description:	Dials 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
DP	Pulse dialing enabled
DR	Answer mode enabled; originate mode disabled following handshake initiation.
DS=n	Dial stored telephone number n
DT	Tone dialing enabled/Pulse dialing disabled
DW	Dialing resumed following dial tone detection
D,	Dialing paused for amount of time specified in S8 register
D!	Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.
D@	Wait for Quite Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by silence up to the time specified in S7, is received prior to executing the rest of the dial string.
D;	Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.

PULSE DIALING RATIO
Type:	Configuration
Format:	AT [cmds] &Pn [cmds]
Description:	Selects pulse dial make/break ratio
Command	Function
&P0	39/61ms at 10pps (North America)
&P1	33/67ms at 10pps (Europe)

REPORT INFORMATION
Type:		Immediate
Format:		AT [cmds] In [cmds]
Description:		Displays information requested
Command		Function
í I0		Reports product code
I1		Reports ROM checksum
I2		Tests and reports ROM checksum
I3		Device set name
I4		Reports modem configuration (see registry below)
Range:		0-31
Unit:		Bit-mapped
Bit	Value	Function
0	0 1	Hayes escape sequence TIES escape sequence
1	0 1	Data/fax/voice without V.42 firmware Data/fax/voice with V.42 firmware
2	0 1	Serial host interface Parallel host interface
3	0 1	No external static RAM present External static RAM present
4	0 1	8K x 8 static RAM present 32K x 8 static RAM present
5-7	0	Reserved
Note: Bit 4 is valid only if bit 3=1

SPEAKER VOLUME
Type:	Configuration
Format:	AT [cmds] Ln [cmds]
Description:	Controls speaker volume
Command	Function
L0	Low volume setting
í L1	Low volume setting
L2	Medium volume setting
L3	Highest volume setting

TRELLIS CODING
Type:	Configuration
Format:	AT [cmds] &Un [cmds]
Description:	Instructs modem whether it will receive and transmit modulated 9600bps carrier with Trellis encoding for V.32
Command	Function
í &U0	Trellis coding enabled
&U1	Trellis coding disabled

AUTO-RETRAIN - AUTO-FALLBACK/FALL-FORWARD
Type:	Configuration
Format:	AT [cmds] %En [cmds]
Description:	Controls auto-retrain mode
Command	Function
í %E0	Auto-retrain disabled
%E1	Auto-retrain enabled

BREAK TYPE
Type:	Configuration
Format:	AT [cmds] \Kn [cmds]
Description:	Configures action of break signal
Command	Break to remote if reliable mode in connect state	Break to remote if reliable mode in command state	Receive at serial port if direct mode in connect state	Receive at modem port, send to serial port in connect state
\K0	Online command mode enabled, send no break to remote modem	Enter command state; do not send break	Send break immediately and enter command state	Destructive/ expedited
\K1	Destructive/ expedited	Destructive/ expedited	Send break immediately	Destructive/ expedited
\K2	Online command mode enabled, send no break to remote modem	Enter command state; do not send break	Send break immediately and enter command state	Non-destructive/ expedited
\K3	Non-destructive/ expedited	Non-destructive/ expedited	Send break immediately	Non-destructive/ expedited
\K4	Online command mode enabled, send no break to remote modem	Enter command state; do not send break	Send break immediately and enter command state	Non-destructive/ non-expedited
\K5	Non-destructive/ non-expedited	Non-destructive/ non-expedited	Send break immediately	Non-destructive/ non-expedited

COMPRESSION
Type:	Configuration
Format:	AT [cmds] %Cn [cmds]
Description:	Selects data compression
Command	Function
%C0	Data compression disabled
%C1	MNP5 enabled

CONNECT MODE
Type:	Configuration
Format:	AT [cmds] \Nn [cmds]
Description:	Controls the type of connection the modem will operate in
Command	Function
\N0	Normal mode enabled
\N1	Direct mode enabled
\N2	Reliable mode enabled
í \N3	Auto-reliable mode enabled
\N4	V.42 reliable mode enabled

EXTENDED RESULT CODES
Type:	Configuration
Format:	AT [cmds] \Vn [cmds]
Description:	Selects result codes supported by modem
Command	Function
\V0	Codes defined by ATV command enabled
\V1	Modified MNP code enabled
\V2	V.42 codes enabled

FLOW CONTROL TYPE
Type:	Configuration
Format:	AT [cmds] \Qn [cmds]
Description:	Sets type of flow control used by modem
Command	Function
\Q0	Flow control disabled
\Q1	Bi-directional XON/XOFF flow control enabled
\Q2	CTS flow control by DCE enabled
\Q3	Bi-directional RTS/CTS flow control enabled

BIT-MAPPED REGISTER S27
Format		AT [cmds] S27=n [cmds]
Range:		0-111
Unit:		Bit-mapped
Description:		Selects synchronous/asynchronous mode, line type, clock source, and ITU-T/Bell modes.
Bit	Value	Function
3, 1, 0	000 001 010 011 100	Asynchronous mode, serial port speed follows connect speed Asynchronous off-line command mode and synchronous connect mode Asynchronous off-line command mode; modem autodials first number in directory, then synchronous connect mode Asynchronous off-line command mode on low DTR, synchronous connect mode on high DTR Auto-synchronous mode
2	0 1	Switched line Leased line
5, 4	00 01 10	Local modem generates transmit clock source Local DTE generates transmit clock source Remote DCE/DTE generates transmit clock source
6	0 1	ITU/T mode Bell mode

DCE LINE SPEED
Type:	Register
Format	AT [cmds] S37=n [cmds]
Description:	Sets the maximum allowable data exchange rate attempted during handshake process.
Command	Function
S37=0	Speed of last connection
S37=1	Reserved
S37=2	Reserved
S37=3	300bps
S37=4	Reserved
S37=5	1200bps
S37=6	2400bps
S37=7	4800bps
S37=8	7200bps
S37=9	9600bps
S37=10	12.0Kbps
S37=11	14.4Kbps

INACTIVITY TIMER
Type:	Register
Format	AT [cmds] S30=n [cmds]
Range:	0-90
Unit:	1 second
Description:	Maximum duration of DTE and DCE inactivity allowed prior to initiating hang-up process.
Note: S30=0 disables the timer and allows indefinite inactivity.

TEST MODES
Type:		Register
Format:		AT [cmds] S16=n [cmds]
Range:		0-125
Unit:		Bit-mapped
Description:		Controls loopback tests, analog, digital, remote digital, and self tests.
Bit	Value	Function
0	0 1	Local analog loopback not in progress Local analog loopback in progress
1	0	Not used
2	0 1	Local digital loopback not in progress Local digital loopback in progress
3	0 1	Modem not in remote digital loopback Remote digital loopback in progress
4	0 1	Remote digital loopback not requested Remote digital loopback requested
5	0 1	Remote digital loopback w/ self-test and error count not in progress Remote digital loopback w/ self-test and error count in progress
6	0 1	Local analog loopback w/ self-test not in progress Local analog loopback w/ self-test in progress