Card Type	Modem
Chip Set	Unidentified
I/O Options	Soundcard connector, serial ports (2 RJ-11), microphone jack, line in
Maximum Modem Rate	33.6Kbps
Maximum Fax Rate	14.4Kbps
Data Modulation Protocol	Bell 103A/212A, ITU-T V.21, V.22, V.22bis,V.32, V.32bis, V.34, V.FC
Fax Modulation Protocol	V.17, V.21, CH2, V.27ter, V.29
Error Correction/Compression	MNP5, V.42, V.42bis
Fax Class	Class I & II
Data Bus	8-bit ISA
Card Size	Half-length

CONNECTIONS
Function	Label		Function		Label
Cable connector to sound card		CN1		Microphone jack		CN4
RJ-11 telephone in		CN2		Line out		CN5
RJ-11 telephone out		CN3

SERIAL PORT ADDRESS
Setting	JP1/A	JP1/B	JP1/C
COM1 (3F8h)	Closed	Closed	Closed
í COM2 (2F8h)	Open	Closed	Closed
COM3 (3E8h)	Closed	Open	Closed
COM4 (2E8h)	Open	Open	Closed

INTERRUPT
Setting	JP2/A	JP2/B	JP2/C	JP2/D	JP2/E
IRQ2	Closed	Open	Open	Open	Open
í IRQ3	Open	Closed	Open	Open	Open
IRQ4	Open	Open	Closed	Open	Open
IRQ5	Open	Open	Open	Closed	Open
IRQ7	Open	Open	Open	Open	Closed

MISCELLANEOUS TECHNICAL NOTES

A compatible sound card is necessary in order for the Speakerphone functions to operate properly.

SUPPORTED COMMAND SET

Basic AT Commands

AT, ‘+++’, ‘comma’, A/

A, B, E, F, H, O, P, R, T, V, X, Z

&C, &D, &G, &P, &S, &T, &W, &X, &Y, &Z

S Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S18, S25, S38

Special Commands

#CID

Note: See MHI Help File for full command documentation.

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
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$	Displays a list of dial commands
D;	Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.
D/	Delays for 125 msec before proceeding with dial string
D#	Extended touch tone pad tones
D*	Extended touch tone pad tones

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports four digit product code
I1	Reports ROM checksum
I2	Reports RAM checksum
I3	Reports product type
I4	Reports current modem settings
I5	Reports nonvolatile memory settings
I6	Reports link diagnostics
I7	Reports product configuration
I11	Reports link diagnostics

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

SPEAKER MODE
Type:	Configuration
Format:	AT [cmds] Mn [cmds]
Description:	Selects various speaker options
Command	Function
M0	Speaker disabled
M2	Speaker enabled
M3	Speaker enabled following dialing, then disabled after carrier signal detected.

RESULT CODES
Type:	Configuration
Format:	AT [cmds] Qn [cmds]
Description:	Enables modem to send result codes to the DTE
Command	Function
Q0	Result code sending enabled
Q1	Result code sending disabled
Q2	Result code sending enabled only in Originate mode

POWER ON/RESET
Type:	Configuration
Format:	AT [cmds] Yn [cmds]
Description:	Selects power on/reset default configuration
Command	Function
Y0	Profile 0 in NVRAM
Y1	Profile 0 in NVRAM
Y2	Generic template (&F0)
Y3	Hardware flow control (&F1)
Y4	Software flow control (&F2)

SOFT RESET
Type:	Immediate
Format:	AT [cmds] Zn [cmds]
Description:	Restores modem profiles previously saved in non-volatile RAM using the &W command.
Command	Function
Z0	Restore modem to profile selected by Y command
Z1	Restore NVRAM setting 0
Z2	Restore NVRAM setting 1
Z3	Resets modem to factory default profile 0 (&F0)
Z4	Resets modem to factory default profile 1 (&F1)
Z5	Resets modem to factory default profile 2 (&F2)

CODE SUBSET DISPLAY
Type:	Configuration
Format:	AT [cmds] &An [cmds]
Description:	Enable or suppress the display of an additional result code subsets.
Command	Function
&A0	Do not display ARQ result codes
&A1	Display ARQ result codes
&A2	Display modulation indicators
&A3	Display error control

SERIAL PORT RATE
Type:	Configuration
Format:	AT [cmds] &Bn [cmds]
Description:	Sets serial port rate.
&B0	Variable, follows connection rate
&B1	Fixed serial port rate
&B2	Fixed in ARQ mode. Variable in non-ARQ mode

FACTORY DEFAULT PROFILE
Type:	Configuration
Format:	AT [cmds] &F [cmds]
Description:	Sets values in active profile to values found in the default profile
&F0	Generic template
&F1	Hardware flow control template
&F2	Software flow control template

TRANSMIT DATA FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] &H [cmds]
Description:	Sets transmit data flow
&H0	Flow control disabled
&H1	Hardware flow control, CTS
&H2	Software flow control, XON/XOFF
&H3	Hardware and software flow control

RECEIVE DATA FLOW CONTROL
Type:	Configuration
Format:	AT [cmds] &I [cmds]
Description:	Sets transmit data flow
&I0	Software flow control disabled
&I1	XON/XOFF signals to your modem and remote system
&I2	XON/XOFF signals to your modem only

DATA COMPRESSION
Type:	Configuration
Format:	AT [cmds] &Kn [cmds]
Description:	Enables/disables data compression
Command	Function
&K0	Data compression disabled
&K1	Auto enable/disable
&K2	Data compression enabled
&K3	MNP5 compression disabled

ERROR CONTROL
Type:	Configuration
Format:	AT [cmds] &Mn [cmds]
Description:	Selects error control 1200bps and higher
Command	Mode
&M0	Normal mode, error control disabled
&M1	Reserved
&M2	Reserved
&M3	Reserved
&M4	Normal/ARQ
&M5	ARQ mode

CONNECTION SPEED UPPER LIMIT
Type:	Configuration
Format:	AT [cmds] &Nn [cmds]
Description:	Sets required connection speed if &U is set to 0; otherwise, sets fastest allowed connection speed.
Command	Function
&N0	No maximum connect speed.
&N1	Set maximum connect speed to 300bps.
&N2	Set maximum connect speed to 1200bps.
&N3	Set maximum connect speed to 2400bps.
&N4	Set maximum connect speed to 4800bps.
&N5	Set maximum connect speed to 7200bps.
&N6	Set maximum connect speed to 9600bps.
&N7	Set maximum connect speed to 12Kbps.
&N8	Set maximum connect speed to 14.4Kbps.
&N9	Set maximum connect speed to 16.8Kbps.
&N10	Set maximum connect speed to 19.2Kbps.
&N11	Set maximum connect speed to 21.6Kbps.
&N12	Set maximum connect speed to 24Kbps.
&N13	Set maximum connect speed to 26.4Kbps.
&N14	Set maximum connect speed to 28.8Kbps.
&N15	Set maximum connect speed to 31.2Kbps.
&N16	Set maximum connect speed to 33.6Kbps.

RTS/CTS
Type:	Configuration
Format:	AT [cmds] &Rn [cmds]
Description:	Selects RTS/CTS options
Command	Function
&R0	Reserved
&R1	RTS is ignored by modem.
&R2	Received data only on RTS. Controls DSR operations

CONNECTION SPEED LOWER LIMIT
Type:	Configuration
Format:	AT [cmds] &Un [cmds]
Description:	Sets slowest allowed connection speed if &N is set to 1 or higher.
Command	Function
í &U0	No minimum connect speed.
&U1	Set minimum connect speed to 300bps.
&U2	Set minimum connect speed to 1200bps.
&U3	Set minimum connect speed to 2400bps.
&U4	Set minimum connect speed to 4800bps.
&U5	Set minimum connect speed to 7200bps.
&U6	Set minimum connect speed to 9600bps.
&U7	Set minimum connect speed to 12Kbps.
&U8	Set minimum connect speed to 14.4Kbps.
&U9	Set minimum connect speed to 16.8Kbps.
&U10	Set minimum connect speed to 19.2Kbps.
&U11	Set minimum connect speed to 21.6Kbps.
&U12	Set minimum connect speed to 24Kbps.
&U13	Set minimum connect speed to 26.4Kbps.
&U14	Set minimum connect speed to 28.8Kbps.
&U15	Set minimum connect speed to 31.2Kbps.
&U16	Set minimum connect speed to 33.6Kbps.

BREAK HANDLING
Type:	Configuration
Format:	AT [cmds] &Yn [cmds]
Description:	Sets break handling
Command	Function
&Y0	Destructive, but doesn’t sent break
&Y1	Destructive, expedited
&Y2	Nondestructive, expedited
&Y3	Reserved

BIT-MAPPED REGISTER S13
Format:		AT [cmds] S13=n [cmds]
Range:		0-174
Unit:		Bit-mapped
Description:		Controls echo, result codes and display, dial mode, and answer/originate mode.
Bit	Value	Function
0	0 1	Unidentified Reset when DTR drops
1	0 1	Unidentified Resets non-MNP transmit buffer from 1.5K to 128bytes
2	0 1	Unidentified Set backspace key to delete
3	0 1	Unidentified DTR signals auto dial stored in NVRAM at position 0
4	0 1	Unidentified Power on auto dial stored in NVRAM at position 0
5	0 1	Not used Not used
6	0 1	Not used Not used
7	0 1	Unidentified Disconnect on escape code

BIT-MAPPED REGISTER S15
Format:		AT [cmds] S15=n [cmds]
Range:		0-174
Description:		Bitmapped register setup.
Bit	Value	Function
0	0 1	Enable ARQ/MNP for V.22 Disable ARQ/MNP for V.22
1	0 1	Enable ARQ/MNP for V.22bis Disable ARQ/MNP for V.22bis
2	0 1	Disable ARQ/MNP for V32/V.32bis Disable ARQ/MNP for V32/V.32bis
3	0 1	Enable MNP handshake Disable MNP handshake
4	0 1	Enable MNP level 4 Disable MNP level 4
5	0 1	Enable MNP level 3 Disable MNP level 3
6	0 1	Special MNP compatibility Special MNP incompatibility
7	0 1	Enable V.42 detection phase Disable V.42 detection phase

TOUCH TONE DIALING TEST
Format:		AT [cmds] S16=n [cmds]
Range:		0-128
Unit:		Bit-mapped register setup
Description:		Bitmapped register setup.
Bit	Value	Function
1	0 1	Touch tone dialing test disabled Touch tone dialing test enabled
2	0 1	Internal test pattern disabled Internal test pattern enabled
3-6	0 1	Not used Not used
7	0 1	Watchdog reset disabled Watchdog reset enabled

INACTIVITY TIMER
Type:	Register
Format	AT [cmds] S19=n [cmds]
Default:	0
Unit:	1 minute
Description:	Activates when there is no activity on the phone line. Modem hangs up at time-out
Note: S19=0 disables the timer and allows an indefinite duration.

MNP OR V.42 MODE DELAY
Type:	Register
Format	AT [cmds] S21=n [cmds]
Range:	Unidentified
Unit:	10ms
Description:	Sets the length of breaks sent from modem to computer.

FLOW CONTROL CHARACTER - XON
Type:	Register
Format:	AT [cmds] S22=n [cmds]
Range:	Unidentified
Unit:	ASCII
Description:	Sets the character used to represent XON

FLOW CONTROL CHARACTER - XOFF
Type:	Register
Format:	AT [cmds] S23=n [cmds]
Range:	Unidentified
Unit:	ASCII
Description:	Sets the character used to represent XOFF

DTR DELAY
Format	AT [cmds] S25=n [cmds]
Unit:	.01 second
Description:	Selects the duration that DTR must be dropped so that the modem doesn’t interpret a random glitch as a DTR loss.

BIT-MAPPED REGISTER S27
Format		AT [cmds] S27=n [cmds]
Unit:		Bit-mapped
Description:		Selects line modulation
Bit	Value	Function
0	0 1	Disables ITU-T modulation at 300bps for overseas calls; in V.21 mode, the modem answers both overseas and domestic calls but only originates V.21 calls. Enables ITU-T modulation at 300bps for overseas calls; in V.21 mode, the modem answers both overseas and domestic calls but only originates V.21 calls.
1	0 1	Disables unencoded modulation in V.32bis mode. Enables unencoded modulation in V.32bis mode
2	0 1	Enables V.32 modulation Disables V.32 modulation
3	0 1	Enables 2100Hz answer tone to allow two V.42 modems to attach more quickly Disables 2100Hz answer tone to allow two V.42 modems to attach more quickly
4	0 1	Disables V.23 fallback mode Enables V.23 fallback mode
5	0 1	Enables V.32bis mode Disables V.32bis mode
6	0 1	Not used Not used
7	0 1	Software compatibility mode disabled Software compatibility mode enabled

ANSWER TONE DISABLE
Type:	Register
Format	AT [cmds] S28=n [cmds]
Range:	0-255
Unit:	.10 second
Description:	Eliminates the V.32 answer tones for faster dialing = "0"

ANSWER MODE FALLBACK TIMER
Type:	Register
Format	AT [cmds] S29=n [cmds]
Range:	Undentified
Unit:	.10 seconds
Description:	Maximum duration of V.21/V.23 answer mode fallback timer.

VOICE PLAYBACK AUDIO LEVEL
Type:	Register
Format	AT [cmds] S31=n [cmds]
Range:	0-255
Description:	Sets voice playback audio level.

BIT-MAPPED REGISTER S32
Format:		AT [cmds] S32=n [cmds]
Range:		Unidentified
Description:		Register setup for 33.6 speed modems
Bit	Value		Function
0	0 1		V.8 call indicate disabled V.8 call indicate enabled
1	0 1		Disables V.8 mode Enables V.8 mode
2	0 1		Enables V.FC modulation Disables V.FC modulation
3	0 1		Enables V.34 modulation Disables V.34 modulation
4	0 1		Enables 33.6kbps support Disables 33.6kbps support
5	0 1		Enables X2 support Disables X2 support

BIT-MAPPED REGISTER S33
Format:		AT [cmds] S33=n [cmds]
Description:		Register setup for 33.6 speed modems
Bit	Value		Function
0	0 1		Enables 2400 symbol rate Disables 2400 symbol rate
1	0 1		Enables 2743 symbol rate Disables 2743 symbol rate
2	0 1		Enables 2800 symbol rate Disables 2800 symbol rate
3	0 1		Enables 3000 symbol rate Disables 3000 symbol rate
4	0 1		Enables 3200 symbol rate Disables 3200 symbol rate
5	0 1		Enables 3429 symbol rate Disables 3429 symbol rate
6	0 1		Not used Not used
7	0 1		Enables shaping Disables shaping

BIT-MAPPED REGISTER S34
Format:		AT [cmds] S34=n [cmds]
Range:		0-255
Description:		Disable/enable trellis encoding
Bit	Value		Function
0	0 1		Enable 8S-2D trellis encoding Disable 8S-2D trellis encoding
1	0 1		Enable 16S-4D trellis encoding Disable 16S-4D trellis encoding
2	0 1		Enable 32S-2D trellis encoding Disable 32S-2D trellis encoding
3	0 1		Enable 64S-4D trellis encoding Disable 64S-4D trellis encoding
4	0 1		Enable non-linear coding Disable non-linear coding
5	0 1		Enable TX level deviation Disable TX level deviation
6	0 1		Enable pre-emphasis Disable pre-emphasis
7	0 1		Enable pre-coding Disable pre-coding

BIT-MAPPED REGISTER S41
Format		AT [cmds] S41=n [cmds]
Range:		Unidentified
Unit:		Bit-mapped
Description:		Selects ringing and speakerphone mode.
Bit	Value	Function
0	0 1	Distinctive ringing disabled Distinctive ringing enabled
2,1	00 11	Full Duplex speakerphone Half Duplex speakerphone mode

MODE SELECTION
Type:	Immediate
Format:	AT [cmds] #CLS=n [cmds]
Description:	Selects which mode the modem will operate in.
Command	Function
#CLS=0	Modem will operate in data mode.
#CLS=1	Modem will operate in fax class I mode.
#CLS=2	Modem will operate in fax class II mode.
#CLS=8	Modem will operate in voice mode.

VOICE DEVICE
Type:	Configuration
Format:	AT [cmds] #VLS=n [cmds]
Description:	Selects the I/O device for the DSP chip.
Note:	This modem may not support all options listed below. The #VLS? command will display the available options.
Command	Function
í #VLS=0	Telephone line and handset used for voice I/O.
#VLS=1	Telephone handset used for voice I/O.
#VLS=2	Internal speaker only used for voice I/O.
#VLS=3	External microphone only used for voice I/O.
#VLS=4	Telephone line and handset used for voice I/O; internal speaker enabled.