Card Type	Modem, Fax
Chip Set	Unidentified
Maximum Modem Rate	33.6Kbps
Maximum Fax Rate	14.4Kbps
Data Modulation Protocol	Bell 103/212A ITU-T V.21, V.22, V.22bis, V.32, V.32bis, V.34, Rockwell V.FC
Fax Modulation Protocol	ITU-T V.17, V.27ter, V.29
Error Correction/Compression	MNP 5, V.42, V.42bis
Fax Class	Class I
Data Bus	External

SUPPORTED COMMAND SET

Basic AT Commands

AT, ‘+++’, A/

A, B, D, E, H, M, O, Q, V, W, X

&C, &V

Extended AT Commands

\N

%C

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S25, S38, S46

Special Commands

+MS

Note: See MHI Help File for full command documentation.

AUTO-MODE DETECTION
Type:	Configuration
Format:	AT [cmds] Nn [cmds]
Description:	Selects various options for the automatic detection and negotiation of protocols during the handshake process if the modem is communicating with a remote modem of dissimilar speed.
Command	Function
N0	Auto-mode detection disabled
í N1	In originate mode, handshake begins at line speed designated by the S37 register. Modem can shift to a slower speed if necessary. In answer mode, handshake attempted with the following protocols in order - V.FC, V.32bis, V.32, V.22bis, V.22 or Bell 212, V.21, and Bell 103

COMMUNICATIONS MODE
Type:	Configuration
Format:	AT [cmds] &Qn [cmds]
Description:	Selects communications mode options
Command	Mode
í &Q0	Asynchronous mode, serial port speed follows connect speed.
&Q5	Asynchronous reliable mode

DATA TERMINAL READY (DTR)
Type:	Configuration
Format:	AT [cmds] &Dn [cmds]
Description:	Selects modem response to DTR
Note: The action each variant of &D causes depends on the setting of &Q
Command	Function
í &D0	Modem does not respond to DTR
&D1	Modem goes to command mode after DTR goes is off
&D2	Modem goes to command mode and disconnects (hangs up) after DTR goes off; Auto-Answer is disabled.
&D3	Modem is initialized after DTR goes off

FACTORY DEFAULT PROFILE
Type:	Configuration
Format:	AT [cmds] &F [cmds]
Description:	Sets values in active profile to values found in the default profile
Command	Function
&F0	Direct mode without flow control
&F2	Reliable mode

FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] &Kn [cmds]
Description:	Enables flow control options
Command	Function
&K0	Flow control disabled
&K3	RTS/CTS flow control enabled
&K4	XON/XOFF flow control enabled
&K5	Transparent XON/XOFF flow control enabled

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports maximum data carrier rate
I1	Reports ROM checksum
I2	Tests and reports ROM checksum
I3	Reports ROM code revision number
I4	Report supported protocols in encrypted format
I5	Reports firmware copyright information
I7	Reports data pump model
I10	Reports optional features
I92	Reports product ID code

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

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

RATE NEGOTIATION
Type:	Configuration
Format:	AT [cmds] %Gn [cmds]
Description:	Controls rate negotiation
Command		Function
%G0		Rate negotiation disabled
%G1		Rate negotiation enabled

CONNECTION FAILURE CODES
Type:	Register
Format	AT [cmds] S86? [cmds]
Description:	Reports codes which correspond to the possible causes of a connection failure
Value	Meaning
0	Normal hang up
4	Carrier signal lost
5	No error-control detected for remote modem during feature negotiation
6	Remote modem failed to respond to feature negotiation
7	Local modem is asynchronous-only, remote modem is synchronous-only
8	No common framing technique found
9	No common protocol found
10	Remote modem sent erroneous feature negotiation message
11	Remote modem failed to send synchronous information
12	No failure - remote modem disconnected normally
13	Remote modem failed to respond after 10 re-transmissions same message
14	Violation of negotiated protocol caused failure

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
í S37=0	Speed of last connection
S37=1	300bps
S37=5	1200bps
S37=6	2400bps
S37=8	4800bps
S37=9	9600bps
S37=10	12.0Kbps
S37=11	14.4Kbps
S37=12	7200bps

ERROR CORRECTION NEGOTIATION
Type:	Register
Format	AT [cmds] S36=n [cmds]
Description:	Selects the action of the modem if it fails to connect with the error-correction protocol set in &Q.
Command	Function
S36=0	Hang up
S36=1	Attempt a direct connection
S36=3	Attempt a buffered connection
S36=4	Attempt a connection at MNP2-4; if that fails, hang up.
S36=5	Attempt a connection at MNP2-4; if that fails, attempt a direct connection.
í S36=7	Attempt a connection at MNP2-4; if that fails, attempt a buffered connection.

EXTENDED RESULT CODES
Type:		Register
Format		AT [cmds] S95=n [cmds]
Default:		0
Range:		0-255
Unit:		Bit-mapped
Description:		Works in combination with the Wn command to enable extended result codes. Features enabled by S95 take precedence over the options selected by Wn.
Bit	Value	Function
1	í 0 1	Verbose CONNECT result codes display DTE or line speed only. Adds "/ARQ" to all verbose CONNECT result codes except "NONE."
2	í 0 1	CARRIER result codes disabled. CARRIER result codes enabled.
4	0	Enable CARRIER XXXX result code
8	0	Enable PROTOCOL XXXX result code
16	0	Reserved
32	0	Compression result code
64	0	Enable TX and RX V.34 CARRIER result code if in asymetric carrier mode
128	0	Reserved

FEATURE NEGOTIATION OPTIONS
Type:			Register
Format:	AT [cmds] S48=n [cmds]
Description:	Selects active error correction and compression protocols
Command		Function
S48=0		Detection negotiation disabled, XID negotiation disabled
í S48=7		Detection negotiation and XID negotiation enabled
S48=128		Fall-back to options set in S36