Card Type	Modem, Fax
Chip Set	Unidentified
I/O Options	Line in, line out, microphone in, speaker out, serial port (RS-232), DC power
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.23, V.32, V.32bis, V.34
Fax Modulation Protocol	ITU-T V.17, V.27ter, V.29
Error Correction/Compression	MNP5, V.42, V.42bis
Fax Class	Class I
Data Bus	External

CONNECTIONS
Function	Label		Function		Label
Line out		CN1		Serial port		CN5
Line in		CN2		DC Power		CN6
Microphone in		CN3		Power switch		SW1
Speaker out		CN4

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
TST	Unidentified	Blinking	Modem is either in test mode or is resending data
TST	Unidentified	Off	Modem is not in test mode or resending data
HS	Unidentified	On	Communicating at 2400bps or above
HS	Unidentified	Off	High speed transmission is disabled
AA	Unidentified	On	Auto-answer is enabled
AA	Unidentified	Blinking	Ring is detected
AA	Unidentified	Off	No line activity detected
CD	Unidentified	On	The modem detects carrier signal from remote modem
CD	Unidentified	Off	The modem cannot detect carrier signal from remote modem
OH	Unidentified	On	Modem is preparing to dial
OH	Unidentified	Off	Modem is not dialing
RD	Unidentified	On	Data is being sent to the computer via the modem
RD	Unidentified	Off	Data is not being sent from the modem to the computer
SD	Unidentified	On	Data is being received by the modem via the computer
SD	Unidentified	Off	The modem is not receiving data from the computer
TR	Unidentified	On	Modem is ready to receive commands
TR	Unidentified	Off	Modem is not ready to receive commands
MR	Unidentified	On	Modem is turned on
MR	Unidentified	Off	Modem is turned off

SUPPORTED COMMAND SET

Basic AT Commands

AT, ‘+++’, A/

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

&C, &F, &P, &T, &V, &W, &Y, &Z

Extended AT Commands

\A, \B, \K, \N

%C, %L, %Q

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18, S21, S22, S23, S24, S25,

S26, S27, S29, S30, S31, S32, S33, S36, S37, S38, S39, S40, S41, S46, S48, S82, S86, S91, S92,

S95

Special Commands

+MS, -SMS=X,Y,Z,T, -SSE=x, -SQS=X,Y

Voice Commands

#BDR, #CID, #CLS, #MDL?, #REV?, #TL, #VBQ?, #VBS, #VBT, #VCI?, #VLS, #VRA, #VRN, #VRX, #VSDB,

#VSK, #VSP, #VSR, #VSS, #VTD, #VTM, #VTS, #VTX

Note: See MHI Help File for full command documentation.

AUTOSCAN MODE
Type:	Immediate
Format:	AT [cmds] Nn [cmds]
Description:	Enables/Disables Autoscan mode
Command	Function
N0	Autoscan mode disabled
í N1	Autoscan mode enabled

CLEAR TO SEND CONFIGURATION
Type:	Configuration
Format:	AT [cmds] &Rn [cmds]
Description:	Configures CTS settings based on the flow control settings
Command	Function
&R0	Reserved
&R1	Sets CTS operation based on flow control requirements

COMMUNICATIONS MODE (ASYNCHRONOUS)
Type:	Configuration
Format:	AT [cmds] &Mn [cmds]
Description:	Selects communications mode
Command	Mode
í &M0	Asynchronous mode

COMMUNICATIONS MODE (DATA LINK AND FALLBACK)
Type:	Configuration
Format:	AT [cmds] &Qn [cmds]
Description:	Configures data link and fallback options
Command	Function
&Q0	Set Direct data link only
í &Q5	Set V.42 data link with fallback options enabled
&Q6	Set Normal data link only

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
DL	Re-dial last number
DP	Pulse dialing enabled
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.

DATA TERMINAL READY (DTR)
Type:	Configuration
Format:	AT [cmds] &Dn [cmds]
Description:	Selects modem response to DTR
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

DATA SET READY (DSR)
Type:	Configuration
Format:	AT [cmds] &Sn [cmds]
Description:	Selects DSR options
Command	Function
&S0	DSR forced high
í &S1	DSR is off while in command mode and set on in on-line mode

FLOW CONTROL
Type:	Immediate
Format:	AT [cmds] &K [cmds]
Description:	Configures flow control settings
Command	Function
&K0	Flow control disabled
í &K3	RTS/CTS hardware flow control enabled
&K4	XON/XOFF software flow control enabled
&K5	Transparent XON/XOFF software flow control enabled
&K6	RTS/CTS & XON/XOFF flow control enabled

GAURD TONE
Type:	Immediate
Format:	AT [cmds] &G [cmds]
Description:	Configures guard tone
Command	Function
&G0	Disable guard tone
&G1	Disable guard tone
&G2	Set guard tone to 1800 Hz.

LINE TYPE
Type:	Configuration
Format:	AT [cmds] &Ln [cmds]
Description:	Selects line type
Command	Line Type
í &L0	Switched line (PSTN/Dial-up)

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports product ID code
I1	Reports ROM checksum
I2	Test and reports internal memory
I3	Reports firmware ID
I4	Reports reserved ID

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

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

ASVD/DSVD MODE
Type:	Configuration
Format:	-SMS=X,Y,Z,T [cmds]
Description:	Selects ASVD/DSVD mode
Note:	Y, Z, & T are optional parameters that control connection speed
Command	Function
X = 0	Data mode enabled
X = 1	DSVD mode enabled
X = 2	ASVD mode enabled
X = 3	Automatic mode select enabled

ASVD MODULATION
Type:	Configuration
Format:	-SQS=X,Y [cmds]
Description:	Selects ASVD/DSVD mode
Note:	Y enables/disables ASVD automatic modulation
Command	Function
X = 0	V.61 modulation enabled
X = 1	ML144 modulation enabled
X = 2	ML288 modulation enabled

DSVD
Type:	Configuration
Format:	-SSE=n [cmds]
Description:	Enables/disables DSVD