Card Type	Modem
Chip Set	Unidentified
I/O Options	Line, headphone, microphone, speaker, 25-pin serial port, power
Maximum Modem Rate	33.6Kbps
Maximum Fax Rate	14.4Kbps
Data Modulation Protocol	ITU-T V.21, V.22, V.22bis,V.23, V.32, V.32bis, V.34+, V.FC
Fax Modulation Protocol	V.17, V.29, V.27ter
Error Correction/Compression	MNP5, V.42, V.42bis
Fax Class	Class I
Data Bus	External

CONNECTIONS
Function	Label		Function		Label
Line		CN1		25-pin serial port		CN5
Speaker		CN2		Power		CN6
Microphone		CN3		Power switch		SW1
Headphone		CN4

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
PWR	Unidentified	On	Power is on
PWR	Unidentified	Off	Power is off
DTR	Unidentified	On	Computer is ready
DTR	Unidentified	Off	Computer is not ready
TD	Unidentified	On	Modem is transmitting data
TD	Unidentified	Off	Modem is not transmitting data
RD	Unidentified	On	Modem is receiving data
RD	Unidentified	Off	Modem is not receiving data
DCD	Unidentified	On	Network connection established
DCD	Unidentified	Off	Network connection not established
OH	Unidentified	On	Modem is off hook
OH	Unidentified	Off	Modem is on hook

SUPPORTED COMMAND SET

Basic AT Commands

AT, A/

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

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

Extended AT commands

\A, \B, \K, \N

%C, %E, %L, %Q

S Registers

S0, S1, S2, S3, S4, S5, S6 ,S7, S8, S9, S10, S12, S18, S29, S30, S32, S33

Special commands

+MS, -K

Voice AT commands

#VBT, #VRX, #VSP, #VSR, #VSS, #VTS, #VTX

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	Auto-mode detection enabled

COMMUNICATIONS MODE
Type:	Configuration
Format:	AT [cmds] &Qn [cmds]
Description:	Selects communications mode options
Command	Mode
&Q0	Asynchronous mode, serial port speed follows connect speed.
í &Q5	Error correction mode
&Q6	Buffered asynchronous mode

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 override
&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
DL	Re-dial last number
DP	Pulse dialing enabled
DS=n	Dial stored telephone number n
DT	Tone dialing enabled
DW	Dialing resumed following dial tone detection
D,	Dialing paused
D@	Wait for Quite Answer function enabled. Modem waits until a "quiet answer," a ring-back signal followed by 5 seconds of silence
D!	Flash function initiated. Modem commanded to go off-hook for specified time before returning on-hook.
D;	Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.
D^	Toggle calling tone

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	Factory default profile 0
&F1	Factory default profile 1

FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] &Kn [cmds]
Description:	Enables flow control options
Command	Function
&K0	Flow control disabled
í &K3	RTS/CTS flow control enabled
&K4	XON/XOFF flow control enabled
&K5	Transparent XON/XOFF flow control enabled
&K6	RTS/CTS & XON/XOFF flow control enabled

LINE MODULATION
Type:	Configuration
Format:	AT [cmds] Fn [cmds]
Description:	For compatibility only. Non-functional

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports maximum line speed
I1	Reports product type
I2	Reports checksum firmware
I3	Reports product name
I4	Reports firmware release
I5	Reports active Country Code

RTS/CTS
Type:	Configuration
Format:	AT [cmds] &Rn [cmds]
Description:	Selects RTS/CTS options
Command	Function
&R0	In asynchronous mode, CTS is controlled according to V.25 handshake recommendation
í &R1	In synchronous mode, CTS follows flow control

MNP10 - POWER LEVEL ADJUST
Type:	Configuration
Format:	AT [cmds] -SEC=n [cmds]
Range:	0-30
Unit:	-1dBm
Description:	Controls automatic transmit power level adjustment during MNP 10 link negotiation
Command	Function
-SEC=0	MNP10 disabled. Transmission level is set in the S91 register
-SEC=1, [tx_lev]	MNP10 enabled. Set transmit level

COMMUNICATION SELECTION
Type:		Configuration
Format:	AT [cmds] #CLS=n [cmds]
Description:	Chooses between: data, fax, and voice-audio mode
Command		Function
#CLS=0		Data mode
#CLS=1		Fax mode
#CLS=8		Voice-audio mode

DATA BAUD RATE SELECTION
Type:	Configuration
Format:	AT [cmds] #BDR=n [cmds]
Range:	1-48
Unit:	n x 2400bps
Description:	Sets the speed of the serial interface. 0 enables autobaud

SPEAKERPHONE OPTIONS
Type:	Configuration
Format:	AT [cmds] #SPK=x,y,z [cmds]
Description:	Sets various options for speakerphone functions.
Command		Function
x=0		Microphone mute
í x=1		Microphone on
x=3		Room monitor
y=0	No speaker attenuation (maximum volume)
y=15	Speaker attenuation (minimum volume)
y=16	Speaker muted
z=0		Microphone gain set to 0dBm.
í z=1		Microphone gain set to 10dBm.
z=2		Microphone gain set to 15dBm.
z=3		Microphone gain set to 20dBm.

VOICE DEVICE
Type:	Configuration
Format:	AT [cmds] #VLS=n [cmds]
Description:	Selects the I/O device for the DSP chip.
Command	Function
#VLS=0	No voice device
#VLS=2	Internal speaker only used for voice I/O.
#VLS=3	External microphone only used for voice I/O.
#VLS=6	Speakerphone used for voice I/O.
#VLS=7	Handset muted by disconnecting handset or speakerphone from telephone line.

VOICE SAMPLE QUALITY
Type:	Configuration
Format:	AT [cmds] #VBS=n [cmds]
Description:	Selects the number of bits per sample that the modem records.
Command	Function
#VBS=2	Modem records 2 bits per sample
#VBS=4	Modem records 4 bits per sample
#VBS=8	Modem records 8 bits per sample

SVD DATA BURST
Type:	Configuration
Format:	AT [cmds] -SMC=n [cmds]
Description:	Enables/disables SVD databurst
Command		Function
SMC=0		Databurst disabled
í SMC=1		Databurst enabled

SVD MODE
Type:	Configuration
Format:	AT [cmds] -SMS=x,y,z [cmds]
Description:	Sets various options for speakerphone functions.
Note:	y,z default is dependant on modulation selection (-SQS)
Command		Function
x=0		Data mode enabled
x=1		Simultaneous voice/data mode selected
í x=3		Automatic selection
y=4800	Minimum allowable SVD data speed set to 4800bps
y=7200	Minimum allowable SVD data speed set to 7200bps
y=9600	Minimum allowable SVD data speed set to 9600bps
y=12000	Minimum allowable SVD data speed set to 12.0Kbps
y=14400	Minimum allowable SVD data speed set to 14.4Kbps
z=4800	Maximum allowable SVD data speed set to 4800bps
z=7200	Maximum allowable SVD data speed set to 7200bps
z=9600	Maximum allowable SVD data speed set to 9600bps
z=12000	Maximum allowable SVD data speed set to 12.0Kbps
z=14400	Maximum allowable SVD data speed set to 14.4Kbps

SVD MODULATION
Type:	Configuration
Format:	AT [cmds] -SQS=x,y [cmds]
Description:	Sets simultaneous voice/data modulation
Command		Function
x=0		V.61 modulation mode
x=1		ML144 modulation mode
í x=2		ML288 modulation mode
í y=1	SVD automatic modulation selection enabled
y=2	SVD automatic modulation selection disabled

TRANSMISSION LEVEL - FAX
Type:	Register
Format:	AT [cmds] S92=n [cmds]
Range:	3-15
Unit:	-1 dBm
Description:	Sets the signal level for transmission while in fax mode

TRANSMISSION LEVEL - LEASED-LINE
Type	Register or Configuration
Format	AT [cmds] S91=n [cmds]
Range	3-15
Unit	-1 dBm
Description	Sets the signal level for transmission over leased-lines