Card Type	Fax, Modem (asynchronous)
Chip Set	Rockwell
Maximum Data Rate	28.8Kbps
Maximum Fax Rate	14.4Kbps
Data Bus	8-bit ISA
Fax Class	Class I & II
Data Modulation Protocol	Bell 103/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34 Rockwell V.FC
Fax Modulation Protocol	ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression	MNP5, MNP10, V.42, V.42bis

CONNECTIONS
Function	Label		Function		Label
Line out/in - Unidentified		CN1		Line in/out - Unidentified		CN2

SERIAL PORT ADDRESS
Setting	SEL/0	SEL/1
COM1 (3F8h)	Open	Open
í COM2 (2F8h)	Closed	Open
COM3 (3E8h)	Open	Closed
COM4 (2E8h)	Closed	Closed

INTERRUPT
Setting	IRQ/2	IRQ/3	IRQ/4	IRQ/5
2	Closed	Open	Open	Open
í 3	Open	Closed	Open	Open
4	Open	Open	Closed	Open
5	Open	Open	Open	Closed

SUPPORTED COMMAND SET

Basic AT Commands

AT, ‘+++’, ‘comma’, A/

A, C, D, E, F, H, L, N, O, P, Q, R, S, T, U, V, W, Y, Z

&A, &B, &C, &G, &J, &K, &L, &P, &S, &T, &V, &W, &X, &Y, &Z

Extended AT Commands

\C, \E, \O, \Q, \T, \U, \V, \X, \Y, \Z

%A, %TT

S Registers

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

S38, S46, S48, S82, S86, S90, S91, S92, S95, S99, S108, S109, S110

Special Commands

"H, "N, "O,-J, )M, +MS?

Note: See MHI Help File for full command documentation.

AUTO-FALLBACK/FALL-FORWARD
Type:	Configuration
Format:	AT [cmds] %Gn [cmds]
Description:	Selects auto-fallback/fall-forward
Command	Function
%G0	Auto-fallback/fall-forward disabled
í %G1	Auto-fallback/fall-forward enabled

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

BIT-MAPPED REGISTER S13
Format:			AT [cmds] S13=n [cmds]
Default:			0
Range:			0-8
Description:			Controls DTR dialing during asynchronous mode
Bit	Value			Function
2 - 0		í 000			Not used
3		í 0 1			DTR auto-dialing In asynchronous mode disabled DTR auto-dialing In asynchronous mode enabled

BIT-MAPPED REGISTER S14
Format:		AT [cmds] S14=n [cmds]
Default:		Unidentified
Range:		0-174
Unit:		Bit-mapped
Description:		Controls echo, result codes and display, dial mode, and answer/originate mode.
Bit	Value	Function
0	í 0	Not used
1	0 í 1	Command echo disabled Command echo enabled
2	í 0 1	Result codes enabled Result codes disabled
3	0 í 1	Display result codes in numeric format Display result codes in verbose format
4	í 0	Not used
5	í 0 1	Tone dial enabled Pulse dial enabled
6	í 0	Not used
7	0 1	Answer mode enabled Originate mode enabled

BIT-MAPPED REGISTER S21
Format		AT [cmds] S21=n [cmds]
Default:		4
Range:		0-253
Unit:		Bit-mapped
Description:		Selects jack type, CTS/DCD/DSR signals, low DTR action, and the long space disconnect function.
Bit	Value	Function
0	í 0 1	Selects RJ-11, RJ-41S, or RJ45S jack Selects RJ-12 or RJ-13 jack
1	í 0	Not used
2	0 í 1	CTS forced high CTS follows RTS
4, 3	í 00 01 10 11	Modem does not respond to DTR Modem hangs-up if off-hook & auto-answer is disabled Modem hangs up if off-hook & auto-answer not disabled Modem switches to asynchronous command state
5	í 0 1	DCD forced high DCD normal
6	í 0 1	DSR forced high DSR normal
7	í 0 1	Long space disconnect function disabled Long space disconnect function enabled

BIT-MAPPED REGISTER S22
Format		AT [cmds] S22=n [cmds]
Default:		118
Range:		0-127
Unit:		Bit-mapped
Description:		Controls speaker volume and controls, and limits results codes.
Bit	Value	Function
1, 0	00 01 í 10 11	Low level volume Low level volume Medium level volume High level volume
3, 2	00 í 01 10 11	Speaker off Speaker off on carrier Speaker always on Speaker on during handshake
6 - 4	000 100 101 110 í 111	Basic result codes only enabled Basic and connection speed result codes enabled Basic and connection speed result codes and dialtone detection enabled All result codes except dialtone detection enabled All result codes enabled

BIT-MAPPED REGISTER S23
Format		AT [cmds] S23=n [cmds]
Default:		55
Range:		0-189
Unit:		Bit-mapped
Description:		Grants/denies remote digital loopback, controls DTE rate and parity, and sets guard tone.
Bit	Value	Function
0	0 í 1	Remote digital loopback denied Remote digital loopback allowed
3 - 1	000 001 010 í 011 100 101 110 111	Sets serial port speed to 0-300bps Sets serial port speed to 600bps Sets serial port speed to 1200bps Sets serial port speed to 2400bps Sets serial port speed to 4800bps Sets serial port speed to 9600bps Sets serial port speed to 19200bps Sets serial port speed to 38400bps or higher
5, 4	00 01 10 í 11	Parity even Not Used Parity odd No Parity
7, 6	í 00 01 10	Guard tone disabled Guard tone 550Hz enabled Guard tone 1800Hz enabled

BIT-MAPPED REGISTER S27
Format		AT [cmds] S27=n [cmds]
Default:		73
Range:		0-11
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 í 101 110	Asynchronous Direct mode Asynchronous off-line command mode and synchronous connect mode Asynchronous off-line command mode - modem auto-dials first number in directory, then synchronous connect mode. Asynchronous off-line command mode on low DTR, synchronous connect mode on high DTR. Not Used Asynchronous Reliable Mode Asynchronous Normal Mode
2	í 0 1	Switched line (PSTN/Dial-up) Leased line
5, 4	í 00 01 10	Modem generates clock DTE generates clock Modem generates clock from the receive carrier signal
6	0 í 1	ITU/T mode Bell mode

BIT-MAPPED REGISTER S28
Format		AT [cmds] S28=n [cmds]
Default:		Unidentified
Range:		0-31
Unit:		Bit-mapped
Description:		Controls V.23 split speed, transmit/receive speed, half duplex; and pulse dialing.
Bit	Value	Function
0	í 0 1	V.23 split speed operation disabled V.23 split speed operation enabled
1	0 1	75bps transmit, 1200bps receive enabled 1200bps transmit, 75bps receive enabled
2	0 1	1200bps transmit, 1200bps receive disabled 1200bps transmit, 1200bps receive enabled
4, 3	í 00 01 10 11	39ms make/61ms break at 10pps 33ms make/67ms break at 10pps 39ms make/61ms break at 20pps 33ms make/67ms break at 20pps

BIT-MAPPED REGISTER S31
Format:		AT [cmds] S31=n [cmds]
Default:		2
Range:		0-10
Description:		Select automode and extended result code format.
Bit	Value		Function
0	í 0		Not used
1	0 í 1		Auto-mode disabled Auto-mode enabled
3, 2	í 00 01 10		Enables CONNECT result codes to report DTE speed Full reporting of CONNECT result codes Enables CONNECT result codes to report DCE speed

BIT-MAPPED REGISTER S40
Format		AT [cmds] S40=n [cmds]
Default:		Unidentified
Range:		0-239
Unit:		Bit-mapped
Description:		Controls power level and break handling; selects MNP extended services, link negotiation, and block size.
Bit	Value	Function
0	0 1	V.42 LAPM to MNP 10 connection disabled V.42 LAPM to MNP 10 connection enabled
1	0 í 1	Power level adjustment disabled Power level adjustment enabled
2	í 0 1	Link will be negotiated at highest possible speed Link will be negotiated at 1200bps
5, 4, 3	000 001 010 011 100 í 101	\K0 \K1 \K2 \K3 \K4 \K5
7, 6	00 01 í 10 11	MNP block size is 64 characters MNP block size is 128 characters MNP block size is 192 characters MNP block size is 256 characters

BIT-MAPPED REGISTER S41
Format		AT [cmds] S41=n [cmds]
Default:		Unidentified
Range:		0-31
Unit:		Bit-mapped
Description:		Selects compression, auto-retrain, flow control, and MNP mode.
Bit	Value	Function
1 - 0	00 01 10 11	Data compression disabled MNP5 enabled V.42bis enabled MNP5 and V.42bis enabled
2	í 0 1	Auto-retrain disabled Auto-retrain enabled
3	í 0 1	Flow control disabled Flow control enabled
4	í 0 1	Stream mode for MNP Block mode for MNP

BIT-MAPPED REGISTER S192
Format:			AT [cmds] S192=n [cmds]
Default:			2
Range:			0-243
Description:			Controls silent Answer Snoop Mode, adaptive answer mode, V.34 rate limiting, rate renegotiating display, demo mode, and silent answer reason code
Bit	Value			Function
0	í 0 1			Standard - Full CNG. A "Snoop" occurs for 3 seconds after each ring, and for 12 seconds after the last ring. Fast - CNG Tone Only. A "Snoop" occurs for 3 seconds after each ring, and for 5 seconds after the last ring.
1		0     í 1			Attempt data carrier first (FAX fallback if failed data). In this mode, adaptive answer accept data carriers primarily and switches to FAX mode if DATA was not successful. No CNG tone required, any and all failed DATA connections are handled as valid FAX call attempts. Attempt data carrier first (FAX if CNG tone). In this mode, adaptive answer accept data carriers primarily wait until data carrier answer tone for 4 seconds to allow a possible CNG tone detect to occur; but switches to FAX mode when a CNG tone is detected.
3, 2		í 00			Not used
4		í 0 1			V34 rate limiting disabled V34 rate limiting enabled; The modem will connect using the rate from +MS, after a connection is made all data rates more than one step below the connection rate will be disabled.
5		í 0 1			Rate Renegotiating Display disabled Rate Renegotiating Display enabled
6		í 0 1			Demo Mode disabled Demo Mode enabled; modem displays V34 288 LP DC as if it is connected. Issue ATZ to return normal operation.
7		í 0 1			Silent answer reason code disabled Silent answer reason code enabled; "CNG -- SA": Silent Answer or Silent Answer Plus code detects CNG. "CNG -- Adaptive Answer": Adaptive Answer code detects CNG. "DATA Time-out": Data mode timed out during an Adaptive Answer.

BIT-MAPPED REGISTER S201
Format:			AT [cmds] S201=n [cmds]
Default:			Unidentified
Range:			0-63
Description:			Controls power level, and compromise equalizer.
Bit	Value			Function
4 - 0	00000 00001 00010 ... 01010 01011 ...to... 11111			Initial power level -26dBm Initial power level -30dBm Initial power level -10dBm ... Initial power level -10dBm Initial power level -11dBm ...to... Initial power level -31dBm
5		0 1			Equalizer disabled Equalizer enabled

BIT-MAPPED REGISTER S210
Format:			AT [cmds] S210=n [cmds]
Default:			Unidentified
Range:			0-13
Description:			Controls Baud rate and V.34 asymmetric carrier rate.
Bit	Value			Function
2 - 0	000 001 010 011 100 í 101			Baud rate Data rates 2400 2400 - 21800bps 2400 4800 - 24000bps 2400,2800 4800 - 24000bps 2400,2800,3000 4800 - 26400bps 2400,2800,3000,3200 4800 - 28800bps 2400,2800,3000,3200,3429 4800 - 28800bps
3		0 1			V.34 transmit and receive carriers use the same rate V.34 transmit and receive Carriers may use different rates

BLACKLISTED NUMBERS
Type:	Immediate
Format:	AT [cmds] *B [cmds]
Description:	Displays a numbered chart of BLACKLISTED numbers, except permanently forbidden numbers based on country setting. "OK" is returned if no numbers are blacklisted.

BREAK SEND
Type:	Configuration
Format:	AT [cmds] \Bn [cmds]
Default:	Unidentified
Range:	1-9
Unit:	.1 second
Description:	Sends break to modem in non-error correction state

BREAK TYPE
Type:		Configuration
Format:		AT [cmds] \Kn [cmds]
Description:		Configures action of break signal
Command	Break from DTE		Modem receives \B	Break received from remote modem
\K0	Online command mode enabled, send no break to remote modem		Break sent to remote modem and buffers cleared	Buffers cleared, break sent to DTE
\K1	Break sent to remote modem and buffers cleared		Break sent to remote modem and buffers cleared	Buffers cleared, break sent to DTE
\K2	Online command mode enabled, send no break to remote modem		Send break to remote modem immediately	Break sent immediately to DTE
\K3	Send break to remote modem immediately		Send break to remote modem immediately	Break sent immediately to DTE
\K4	Online command mode enabled, send no break to remote modem		Send break with transmitted data	Break sent with received data to the DTE
í \K5	Send break with transmitted data		Send break with transmitted data	Break sent with received data to the DTE

CALLER ID
Type:	Configuration
Format:	AT [cmds] #CID=n [cmds]
Description:	Controls the Caller ID function
Command	Function
#CID?	Displays current Caller ID mode
#CID=?	Returns Caller ID modes supported
#CID=0	Caller ID disabled
#CID=1	Caller ID displays formatted data
#CID=2	Caller ID displays raw hexadecimal data

COMMUNICATIONS MODE
Type:	Configuration
Format:	AT [cmds] &Mn [cmds]
Description:	Selects communications mode
Note: Same function as &Q(0-3) settings.
Command	Mode
í &M0	Asynchronous Direct mode
&M1	Asynchronous off-line command mode and synchronous connect mode.
&M2	Asynchronous off-line command mode - modem auto-dials first number in directory, then synchronous connect mode.
&M3	Asynchronous off-line command mode on low DTR, synchronous connect mode on high DTR.

COMMUNICATIONS MODE
Type:	Configuration
Format:	AT [cmds] &Qn [cmds]
Description:	Selects communications mode options
Command	Mode
&Q0	Asynchronous Direct mode
&Q1	Asynchronous off-line command mode and synchronous connect mode.
&Q2	Asynchronous off-line command mode - modem auto-dials first number in directory, then synchronous connect mode.
&Q3	Asynchronous off-line command mode on low DTR, synchronous connect mode on high DTR.
&Q4	Not Used
í &Q5	Asynchronous Reliable Mode
&Q6	Asynchronous Normal Mode
Note: Be VERY careful when issuing these commands! Once you enter &Q(1-3) and save it to memory, there are only two known ways to return to Asynchronous Mode: 1. Issue AT &Q(0,5-9) &W from a Synchronous Terminal to restore the modem to Asynchronous Mode. 2. Connect modem to an Asynchronous Terminal with the DTR signal (line 20) disabled (a "break-out" box works very nicely for this) and issue the configuration you want or AT &Q(0,5-9) &W to return the modem to Asynchronous Mode.

COMMUNICATION PROTOCOLS
Type:	Configuration
Format:	AT [cmds] Bn [cmds]
Description:	Selects the communication protocol for data calls
Note: The B command allows the simultaneous selection of more than one suffix, enabling multiple protocols.
Command		Function
B0		V.21 (1200bps) and V.22 (1200 bps)
B1		Bell 103 (300 bps) and Bell 212A (1200 bps)

COMPRESSION
Type:	Configuration
Format:	AT [cmds] %Cn [cmds]
Description:	Selects data compression
Command	Function
%C0	Data compression disabled
%C1	MNP5 enabled
%C2	V.42bis enabled
%C3	MNP5 and V.42bis 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
\N5	MNP reliable mode enabled

COUNTRY CODE
Type:	Configuration
Format:	AT [cmds] *NCn [cmds]
Description:	Sets the country code
Command		Function	Command	Function
*NC?		Displays country codes and configurations currently supported	*NC013	Spain
*NC000		United States	*NC014	Sweden
*NC001		Austria	*NC015	Switzerland
*NC002		Belgium	*NC016	United Kingdom
*NC003		Denmark	*NC017	Greece
*NC004		Finland	*NC020	Canada
*NC005		France	*NC021	Mexico
*NC006		Germany	*NC022	United States
*NC007		Ireland	*NC040	Australia
*NC008		Italy	*NC043	Japan
*NC010		Netherlands	*NC047	Singapore
*NC011		Norway	*NC048	New Zealand
*NC012		Portugal	*NC060	South Africa

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
&Q Setting		&D0	&D1	&D2	&D3
&Q0, &Q5, &Q6		Command 0	Command 3	Command 1	Command 4
&Q1, &Q4		Command 2	Command 3	Command 1	Command 4
&Q2, &Q3		Command 1	Command 1	Command 1	Command 1
Command	Function
Command 0	Modem does not respond to DTR
Command 1	Modem hangs-up if off-hook & auto-answer is disabled
Command 2	Modem hangs up if off-hook & auto-answer not disabled
Command 3	Modem switches to asynchronous command state
Command 4	Modem performs soft reset

DELAYED NUMBERS
Type:	Immediate
Format:	AT [cmds] *D [cmds]
Description:	Displays a numbered chart of DELAYED numbers and the length of delay in the format HH:MM:SS. "OK" is returned if no numbers are delayed.

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
- ( ) i	These symbols and spaces are ignored
L	Dial the last dialing string
J	Perform MNP10 link negotiation at 1200bps (one-shot)
K	Enable power level adjustment during MNP10 link negotiation (one-shot)
P	Pulse dial the following digits
R	Accepted, but no action occurs
Sn	Use dialing string stored in register n. n=0-3
T	Tone dial the following digits
W	Wait for second dialtone, Within the time set in S6 and/or S7
*	DTMF code for "star"
#	DTMF code for "gate"
&	Wait for "bong" Credit Card billing tone
@	Wait for quiet answer, A 5 second silence.
,	Pause before finishing dialing string, time set in S8
!	Hook flash, go on-hook for 700ms, maybe changed by S29.
^	Turn on 1300Hz call originating pulse
;	Return to command state

DIALING CODES
Type:	Configuration
Format:	AT [cmds] *Zn [cmds]
Description:	Sets pulse dialing. Used for countries that supports 2 pulse dialing methods.
Command		Function
í *Z0		Dial code 0
*Z1		Dial code 1

DISTICTIVE RING
Type:			Configuration
Format:			AT [cmds] -SDR=n [cmds]
Default:			0
Range:			0-7
Description:			Selects distinctive ring and result code
Note: -SDR? = Reports current distinctive ring used
Bit	Value			Function
0		í 0 1			Single rings and report as RING 1 disabled Single rings and report as RING 1 enabled
1		í 0 1			Double rings and report as RING 2 disabled Double rings and report as RING 2 enabled
2		í 0 1			Triple rings and report as RING 3 disabled Triple rings and report as RING 3 enabled

DISPLAYS CURRENT SETTINGS
Type:	Immediate
Format:	AT [cmds] \S [cmds]
Description:	Displays Active Configuration

DISPLAYS MANUFACTURER
Type:	Immediate
Format:	AT [cmds] +GMI [cmds]
Description:	Displays manufacturer ID

DISPLAYS MODEL
Type:	Immediate
Format:	AT [cmds] +GMM [cmds]
Description:	Displays model ID

DISPLAYS ROM CODE
Type:	Immediate
Format:	AT [cmds] +GMR [cmds]
Description:	Displays ROM Code ID

EQM AUTOMATIC RATE ADAPTION BIAS
Type:	Register
Format	AT [cmds] S191=n [cmds]
Default:	129
Range:	0-255
Unit:	Unidentified
Description:	Controls the bias for V.32/32bis,V.FC, and V.34 operation. Linked to AT%Q, but doesn’t affect it.

EQM QUALITY TIMER
Type:	Register
Format	AT [cmds] S190=n [cmds]
Default:	60
Range:	10-255
Unit:	1 second
Description:	Sets the minimum time period the EQM (%Q) level must be "GOOD" before attempting to fall-forward to a higher rate. Affects AT%E2%G1 setting

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		No flow control, No error correction, No data compression
&F1		MAC hardware flow control, correction & compression active
&F2		Hardware flow control, correction & compression active

FLASH DIAL MODIFIER TIME
Type:	Register
Format	AT [cmds] S29=n [cmds]
Default:	7
Range:	0-255
Unit:	.1 second
Description:	Time the modem will go on-hook upon receiving the ! dial modifier in dial string. S29=0 will disable flash hook function.

FLASH ROM
Type:	Immediate
Format:	AT [cmds] ** [cmds]
Description:	Set FLASH ROM code XMODEM upload mode

FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] \Gn [cmds]
Description:	Selects modem port flow control for Normal and Direct modes
Command	Function
í \G0	Flow control disabled
\G1	Flow control enabled

FLOW CONTROL
Type:	Read-only Register
Format	AT [cmds] S39? [cmds]
Description:	Displays the current flow control
Value	Meaning
0	Flow control disabled
3	RTS/CTS flow control enabled
4	XON/XOFF flow control enabled
5	Transparent XON/XOFF flow control enabled
6	Both XON/XOFF and RTS/CTS enabled

FLOW CONTROL CHARACTER - XON
Type:	Register
Format:	AT [cmds] S32=n [cmds]
Default:	17
Range:	0-255
Unit:	ASCII
Description:	Sets the character used to represent XON

FLOW CONTROL CHARACTER - XOFF
Type:	Register
Format:	AT [cmds] S33=n [cmds]
Default:	19
Range:	0-255
Unit:	ASCII
Description:	Sets the character used to represent XOFF

INACTIVITY TIMER
Type:	Register
Format	AT [cmds] S30=n [cmds]
Default:	0
Range:	0-255
Unit:	10 seconds
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. In Reliable mode any data transfer resets timer. In Normal mode only sent data resets timer.

LINE SIGNAL LEVEL
Type:	Immediate
Format	AT [cmds] %L [cmds]
Default:	Unidentified
Range:	9-46
Unit:	-dBm
Description:	Returns a value which indicates the received line signal level

LINE SIGNAL QUALITY
Type:	Immediate
Format	AT [cmds] %Q [cmds]
Default:	Unidentified
Range:	0-127
Unit:	Unidentified
Description:	Returns a value which indicates line signal quality (EQM)

LOCK SERIAL PORT
Type:	Configuration
Format:	AT [cmds] \Jn [cmds]
Description:	Sets operation of serial port speed
Command	Function
\J0	Serial speed locked
\J1	Serial speed follows connect speed

MAXIMUM BLOCK SIZE FOR TRANSMISSION
Type:	Configuration
Format:	AT [cmds] \An [cmds]
Description:	Sets the maximum transmittable block size
Command	Function
\A0	MNP block size is 64 characters
í \A1	MNP block size is 128 characters
\A2	MNP block size is 192 characters
\A3	MNP block size is 256 characters

MNP MODE
Type:	Configuration
Format:	AT [cmds] -Cn [cmds]
Description:	Controls which MNP mode is selected
Command		Function
-C0		Enable MNP 10 sync mode
-C1		Enable MNP 10 async mode
-C2		Enable MNP 2
-C3		Enable MNP 3

MNP - EXTENDED SERVICES
Type:	Configuration
Format:	AT [cmds] -Kn [cmds]
Description:	Selects MNP extended services (MNP10)
Command	Function
í -K0	V.42 LAPM to MNP 10 connection disabled
-K1	V.42 LAPM to MNP 10 connection enabled
-K2	MNP 10 extended services detection enabled

MNP - STREAM/BLOCK MODE
Type:	Configuration
Format:	AT [cmds] \Ln [cmds]
Description:	Selects the transfer mode for MNP link
Command	Function
í \L0	Stream mode for MNP enabled
\L1	Block mode for MNP enabled

MNP10 - FALLBACK
Type:	Configuration
Format:	AT [cmds] -Qn [cmds]
Description:	Allows MNP10 to fall back to speeds slower than 4800bps
Command	Function
-Q0	MNP10 at 4800bps only enabled
í -Q1	MNP10 at 2400 and 1200bps enabled

MNP10 - FALL-FORWARD
Type:	Configuration
Format:	AT [cmds] -Un [cmds]
Description:	Controls forced transmit level change during MNP10 fall-forward
Command	Function
-U0	Automatic attenuation to -10dBm
-U1	Automatic attenuation to as low as -18dBm
-U2	Automatic attenuation to as low as -22dBm
-U3	Automatic attenuation to as low as -25dBm
-U4	Forced 2400bps transmit level to -10dBm
-U5	Forced 2400bps transmit level to -18dBm
-U6	Forced 2400bps transmit level to -22dBm
-U7	Forced 2400bps transmit level to -25dBm

MNP10 - LINK NEGOTIATION
Type:	Configuration
Format:	AT [cmds] *Hn [cmds]
Description:	Sets the speed at which MNP10 link negotiation will occur
Command	Function
í *H0	Link will be negotiated at highest possible speed
*H1	Link will be negotiated at 1200bps
*H2	Link will be negotiated at 4800bps

MNP10 - POWER LEVEL ADJUST
Type:	Configuration
Format:	AT [cmds] )Mn [cmds]
Description:	Controls automatic transmit power level adjustment during MNP 10 link negotiation
Command	Function
í )M0	Power level adjustment disabled
)M1	Power level adjustment enabled

MODULATION SELECTION
Type:	Configuration
Format:	AT [cmds] +MS=x,y,z,a [cmds]
Default:	AT+MS=11,1,300,28800<cr>
Description:	Sets options for active protocol; the transfer rates specified by z (minimum) and a (maximum) must be valid for the protocol selected.
Command	Function
+MS=?	Displays supported +MS options and range
x=0	V.21
x=1	V.22
x=2	V.22bis
x=3	V.23
x=9	V.32
x=10	V.32bis
í x=11	V.34
x=64	Bell 103
x=69	Bell 212A
x=74	V.FC
y=0	Automode disabled
í y=1	Auto-detect highest speed enabled
z, a=300	Set minimum or maximum transfer rate at 300bps, respectively.
z, a=1200	Set minimum or maximum transfer rate at 1200bps, respectively.
z, a=2400	Set minimum or maximum transfer rate at 2400bps, respectively.
z, a=4800	Set minimum or maximum transfer rate at 4800bps, respectively.
z, a=7200	Set minimum or maximum transfer rate at 7200bps, respectively.
z, a=9600	Set minimum or maximum transfer rate at 9600bps, respectively.
z, a=12000	Set minimum or maximum transfer rate at 12000bps, respectively.
z, a=14400	Set minimum or maximum transfer rate at 14400bps, respectively.
z, a=16800	Set minimum or maximum transfer rate at 16800bps, respectively.
z, a=19200	Set minimum or maximum transfer rate at 19200bps, respectively.
z, a=21600	Set minimum or maximum transfer rate at 21600bps, respectively.
z, a=24000	Set minimum or maximum transfer rate at 24000bps, respectively.
z, a=26400	Set minimum or maximum transfer rate at 26400bps, respectively.
z, a=28800	Set minimum or maximum transfer rate at 28800bps, respectively.

PHASE 1 BUSY
Type:			Register
Format:			AT [cmds] SCn=x [cmds]
Description:			Sets the way the modem accepts a busy signal by FCC specifications
Command	Value			Function
SC0=x	42			Minimum BUSY ON Time
SC1=x		0			Minimum BUSY ON Time
SC2=x		58			Maximum BUSY ON Time
SC3=x		0			Maximum BUSY ON Time
SC4=x		42			Minimum BUSY OFF Time
SC5=x		0			Minimum BUSY OFF Time
SC6=x		58			Maximum BUSY OFF Time
SC7=x		0			Maximum BUSY OFF Time
SC8=x		4			Number of Cycles

PHASE 1 RINGBACK
Type:			Register
Format:			AT [cmds] SCn=x [cmds]
Description:			Sets the way the modem accepts a ringback signal by FCC specifications
Command	Value			Function
SC9=x	90			Minimum ON Time
SC10=x		0			Minimum ON Time
SC11=x		300			Maximum ON Time
SC12=x		0			Maximum ON Time
SC13=x		290			Minimum OFF Time
SC14=x		0			Minimum OFF Time
SC15=x		460			Maximum OFF Time
SC16=x		0			Maximum OFF Time
SC17=x		1			Number of Cycles

PHASE 1 CONGESTION
Type:			Register
Format:			AT [cmds] SCn=x [cmds]
Description:			Sets the way the modem accepts a congestion signal by FCC specifications
Command	Value			Function
SC18=x	22			Minimum ON Time
SC19=x		0			Minimum ON Time
SC20=x		28			Maximum ON Time
SC21=x		0			Maximum ON Time
SC22=x		22			Minimum OFF Time
SC23=x		0			Minimum OFF Time
SC24=x		28			Maximum OFF Time
SC25=x		0			Maximum OFF Time
SC26=x		4			Number of Cycles

PHASE 1 DIALTONE 1
Type:			Register
Format:			AT [cmds] SCn=x [cmds]
Description:			Sets the way the modem accepts a dialtone 1 signal by FCC specifications
Command	Value			Function
SC27=x	0			Minimum ON Time
SC28=x		0			Minimum ON Time
SC29=x		0			Maximum ON Time
SC30=x		0			Maximum ON Time
SC31=x		0			Minimum OFF Time
SC32=x		0			Minimum OFF Time
SC33=x		0			Maximum OFF Time
SC34=x		0			Maximum OFF Time
SC35=x		1			Number of Cycles