Card Type	ISDN, Modem
Chip Set	Unidentified
I/O Options	ISDN interface via RJ-45 connector, reset
ISDN Rate	128Kbps
Maximum Modem Rate	33.6Kbps
Maximum Fax Rate ISDN Modulation Protocol	14.4Kbps V.110, V.120, PPP
Data Modulation Protocol	ITU-T V.21, V.22, V.22bis,V.23, V.32, V.32bis, V.34, VFC
Fax Modulation Protocol	V.17, V.29, V.27ter
Error Correction/Compression	MNP5, V.42, V.42bis
Fax Class	Class I
Data Bus	16-bit ISA

CONNECTIONS
Function	Label		Function		Label
ISDN interface (RJ-45 connector)		CN1		Reset		P1

USER CONFIGURABLE SETTINGS
Setting	Label	Position
í Transmission channel in high impedence mode	U4	Pins 2 & 3 closed
Transmit termination set to 100Ohm	U4	Pins 1 & 2 closed
í Receive channel in high impedence mode	U5	Pins 2 & 3 closed
Receive termination set to 100Ohm	U5	Pins 1 & 2 closed

ADDRESS SELECTION
Setting	DS1/1	DS1/2
COM1 (3F8h)	Off	Off
COM2 (2F8h)	Off	On
COM3 (3E8h)	On	Off
COM4 (2E8h)	On	On

INTERRUPT SELECTION
IRQ	DS1/3	DS1/4	DS1/5	DS1/6	DS1/7	DS1/8
IRQ3	On	Off	Off	Off	Off	Off
IRQ4	Off	On	Off	Off	Off	Off
IRQ5	Off	Off	On	Off	Off	Off
IRQ10	Off	Off	Off	Off	On	Off
IRQ11	Off	Off	Off	Off	Off	On

SUPPORTED COMMAND SET (DIGITAL)

Basic AT Commands

AT, A/

A, E, Q, V, W

&C, &Z

S Registers

S2, S3, S4, S12, S25

Note: See MHI Help File for full command documentation.

SUPPORTED COMMAND SET (ANALOG)

Basic AT Commands

AT, A/

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

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

Extended AT commands

\A, \B, \G, \K, \N

%C, %E, %L

S Registers

S0, S1, S2, S3, S4, S5, S6 ,S7, S8, S10, S12, S18, S25, S26, S30, S32, S33

Special commands

+MS, )M

V.25bis commands

CIC, CRN, CRS, DIC, PRN

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	Originate Mode
N0	Connection established at speed specified by register S37. If the DTE rate is 38.4Kbps or higher, the speed is negotiated at 38.4Kbps
í N1	Connection established at speed of last connection. If greater than 19.2Kbps, the connection will be established at 19.2Kbps

COMMUNICATIONS MODE
Type:	Configuration
Format:	AT [cmds] &Qn [cmds]
Description:	Selects communications mode options
Command	Mode
&Q0	Buffered asynchronous mode
&Q4	Direct mode (V.110)

COMMUNICATIONS MODE
Type:	Configuration
Format:	AT [cmds] &Mn [cmds]
Description:	Selects communications mode options
Command	Mode
&M0	Buffered asynchronous mode
&M4	Direct mode (V.110)

CONFIGURATION PROFILES
Type:	Immediate
Format:	AT [cmds] &V [cmds]
Description:	Displays active and stored configuration profiles
Command	Function
&V0	Displays the active profile, the 0 and 1st user configuration and the first four stored numbers
&V1	Displays the 2nd and 3rd user configuration
&V2	Displays every stored phone number
&V3	Displays the supplementary services profile

DATA COMPRESSION
Type:	Immediate
Format:	AT [cmds] &Un
Description:	Selects data compression
Command	Function
í &U0	Data compression disabled
&U1	Error corrected data compression enabled (V.120)

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
í&D0	DTR override
&D1	DTR toggle causes online command mode
&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
DS=n	Dial stored telephone number n (0-7)
DT	Call switched to digital interface
DP	Call switched to analog interface

DIAL USING ANALOG MODEM
Type:	Configuration
Format:	AT [cmds] Pn [cmds]
Description:	When inserted in the dial string, modem makes the call using the analog modem section

DIAL USING DIGITAL MODEM
Type:	Configuration
Format:	AT [cmds] Tn [cmds]
Description:	When inserted in the dial string, modem makes the call using the digital modem section

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	Load active profile the factory profile 0
&F1	Load active profile the factory profile 1
&F2	Load active profile the factory profile 2
&F3	Load active profile the factory profile 3

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. Modem does not transmit XON/XOFF characters received from computer to remote
&K8	Unidirectional XON/XOFF flow control enabled
&K12	XON/XOFF flow control enabled. Modem transmits XON/XOFF characters received from computer to remote
&K16	V.110 XON/XOFF flow control enabled. Flow control between local and remote modems only. Flow control between modem and computer is disabled.
&K20	V.110 XON/XOFF flow control enabled.

HOOK CONTROL
Type:	Immediate
Format:	AT [cmds] Hn [cmds]
Description:	Hangs up the TA from the ISDN network
Command	Function
H0	Modem commanded to go on-hook (hang-up)

ON-LINE
Type:	Immediate
Format:	AT [cmds] On [cmds]
Description:	Controls on-line command (data transmission) state options.
Command	Function
O0	On-line command mode with no retraining enabled

REPORT INFORMATION
Type:	Immediate
Format:	AT [cmds] In [cmds]
Description:	Displays information requested
Command	Function
I0	Reports model
I1	Reports ROM checksum
I2	Tests and reports ROM checksum
I3	Reports revision level
I4	Display central office

RESTORE PROFILE ON POWER-UP
Type:	Configuration
Format:	AT [cmds] &Yn [cmds]
Description:	Restores a selected profile into the active profile on power-up (hard reset)
Command	Function
&Y0	Restore profile 0 on power-up
&Y1	Restore profile 1 on power-up
&Y2	Restore profile 2 on power-up
&Y3	Restore profile 3 on power-up

SELECT CALL PROGRESS RESULT CODES
Type:	Configuration
Format:	AT [cmds] Xn [cmds]
Description:	Enables selection of tone detection and associated result code format options
Command	Function
X0	Result codes 0 - 4 enabled.
X1	Extended result codes enabled.

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 setting 0
Z1	Restore setting 1
Z2	Restore setting 2
Z3	Restore setting 3

STORE ACTIVE PROFILE
Type:	Configuration
Format:	AT [cmds] &Wn [cmds]
Description:	Writes the values for the active profile into the non-volatile RAM
Command	Function
&W0	Write the active profile to stored profile 0
&W1	Write the active profile to stored profile 1
&W2	Write the active profile to stored profile 2
&W3	Write the active profile to stored profile 3

TEST MODES
Type:	Immediate
Format:	AT [cmds] &Tn
Description:	Selects test options
Command	Function
&T0	End current test
&T1	Begin local analog loopback test
&T3	Begin B1 channel local digital loopback

B-CHANNEL PROTOCOL
Type:	Configuration
Format:	AT [cmds] %A2=n [cmds]
Description:	Determines rate adaptation protocol on B-channel
Command	Function
í %A2=2	V.110
%A2=3	V.120

B-CHANNEL SELECTION
Type:	Configuration
Format:	AT [cmds] %A3=n [cmds]
Description:	Selects data channel
Command	Function
í %A3=2	B1 channel selected. If busy select B2 channel
%A3=3	B1 channel selected. If busy initiate hang-up
%A3=4	B2 channel selected. If busy select B1 channel
%A3=5	B2 channel selected. If busy initiate hang-up

CALLER ID
Type:	Configuration
Format:	AT [cmds] *In [cmds]
Description:	Controls the Caller ID function
Command	Function
*I0	Caller ID disabled
*I1	Caller ID enabled

COMMAND SET
Type:	Configuration
Format:	AT [cmds] %Vn [cmds]
Description:	Selects the command set
Command	Function
%V0	AT command set
%V1	Asynchronous V.25bis command set

COMPRESSION
Type:	Configuration
Format:	AT [cmds] %Cn [cmds]
Description:	Selects data compression
Command	Function
%C0	Data compression disabled
%C1	MNP5 enabled

DIGITAL OR ANALOG MODEM SELECTION
Type:	Configuration
Format:	AT [cmds] $Mn [cmds]
Description:	Selects digital or analog for preliminary setup
Note:	If the call is being made using the digital section, the remote user is ISDN. If the call is being made using the analog section, the remote user is PSTN
Command	Function
$M0	Computer interface is switched to the digital modem section
$M1	Computer interface is witched to the analog modem section

MULTISUBSCRIBER NUMBER
Type:	Configuration
Format:	AT [cmds] *Mn [cmds]
Description:	Permits the association of a maximum of 8 consecutive numbers to a BRI access of the national plan number
Command	Function
í *M0	MSN disabled
*M1	MSN enabled

PROGRAMMING PROMPT
Type:	Configuration
Format:	AT [cmds] $Pn [cmds]
Description:	Enables/disables programming prompt
Command	Function
í $P0	Interface prompt disabled
$P1	Interface prompt enabled

RESET
Type:	Configuration
Format:	AT [cmds] %Z1 [cmds]
Description:	Master reset and load the configuration specified by the &Y command

STORE CALLER ID NUMBER
Type:	Configuration
Format:	AT [cmds] !N1=n [cmds]
Description:	Stores telephone number n for the caller ID function. !N1=? displays the stored telephone number.

STORE MULTISUBSCRIBER NUMBER
Type:	Configuration
Format:	AT [cmds] !N2=n [cmds]
Description:	Stores own telephone number n for the MSN. !N2=? displays the stored multisubscriber number.

STORE SUBADDRESS NUMBER
Type:	Configuration
Format:	AT [cmds] !N3=n [cmds]
Description:	Stores subaddress field with a maximum of four numbers. !N3=? displays the stored subaddress field.

SUBADDRESS
Type:	Configuration
Format:	AT [cmds] *Sn [cmds]
Description:	Identifies address of called modem
Command	Function
í *S0	Subaddress function disabled
*S1	Subaddress function enabled

AUTO ANSWER RING COUNT
Type:	Register
Format	AT [cmds] S0=n [cmds]
Range:	1-5
Unit:	1 ring
Description:	Sets the number of rings allowed before the modem automatically goes off-hook
Note: If S0=0, automatic-answering is disabled. The A command must be used to go off-hook.

BACKSPACE CHARACTER
Type:	Register
Format	AT [cmds] S5=n [cmds]
Range:	0-127
Unit:	ASCII
Description:	Selects a character used for backspace <BS>

BIT-MAPPED REGISTER S31
Type:				Register
Format:		AT [cmds] S31=n [cmds]
Range:		0-255
Description:		Selects V.25bis command mode
Bit	Value		Function
1,0	í 0		V.25bis asynchronous mode
2 - 6	0		Reserved
7	í 0 1		V.25bis disabled V.25bis enabled

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
S37=0, 255	Speed of last connection
S37=5	1200bps
S37=6	2400bps
S37=15	4800bps
S37=16	7200bps
S37=17	9600bps
S37=18	12.0Kbps
S37=19	14.4Kbps
S37=27	19.2Kbps
S37=50	38.4Kbps (asynchronous only)

FLOW CONTROL
Type:		Register
Format:	AT [cmds] S49=n [cmds]
Description:	Displays the value of the &K command, which specifies the DTE flow control setting
Command		Function
S49=0		No DTE flow control
S49=3		RTS/CTS flow control enabled
S49=4		Bi-directional XON/XOFF flow control enabled
S49=5		Transparent bi-directional XON/XOFF flow control enabled

NO CARRIER TIME-OUT
Type:	Register
Format	AT [cmds] S7=n [cmds]
Range:	1-255
Unit:	1 second
Description:	Maximum wait time the modem uses after dialing to detect a carrier signal from the remote modem for both originating and answering calls.

POINTER FOR CALL-BACK AND AUTOLOGON
Type:	Register
Format	AT [cmds] S34=n [cmds]
Range:	0-20, 255
Unit:	Unidentified
Description:	Establishes the memory location accessed to initiate autologon or callback procedures. 20 will cause the phonebook to scroll. 255 disables function

RING COUNT
Type:	Register
Format	AT [cmds] S1 [cmds]
Range:	1-5
Unit:	1 ring
Description:	Counts the number of ring-cycles the modem receives
Note: S1 is reset to 0 if no ring is detected within an eight-second window.

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

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.
&Q4	Auto-synchronous mode
&Q5	Error correction mode
&Q6	Buffered 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	Protocol
B0	ITU-T V.22 at 300 or 1200bps

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	Dial using analog modem section
DS=n	Dial stored telephone number n
DT	Dial using digital modem section
DW	Dialing resumed following dial tone detection
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 5 seconds of silence
D,	Dialing paused for amount of time specified in S8 register
D;	Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.

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

GUARD TONE
Type:	Configuration
Format:	AT [cmds] &Gn [cmds]
Description:	Commands the modem to transmit a guard tone in V.22/V.22bis
Note: Used primarily for international data transmission
Command	Function
í &G0	Guard tone disabled
&G2	1800Hz guard tone enabled

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

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

ABORT KEY CONTROL
Type:	Configuration
Format:	AT [cmds] %Kn [cmds]
Description:	Enable/disable abort key during dialing
Command	Function
%K0	Abort key during dialing enabled
%K1	abort key during dialing disabled

DSR WINK
Type:	Immediate
Format:	AT [cmds] %S [cmds]
Description:	Returns a value which indicates line signal quality
Command	Function
%S0	Data set ready in accordance with &S
%S1	When DTR is forced high, and the modem is goes off-hook, DTR is off for 1sec.

LINE SIGNAL QUALITY
Type:	Immediate
Format:	AT [cmds] %Q [cmds]
Range:	000-127
Unit:	Unidentified
Description:	Returns a value which indicates line signal quality. Values 000-007 indicate good line quality. Values 008-127 indicate poor line quality, disturbed signal

MAKE BUSY
Type:	Configuration
Format:	AT [cmds] %Bn [cmds]
Description:	Make busy (off-hook) if DTR lost
Command	Function
í %B0	Make busy disabled
%B1	Make busy enabled if S25=0. When DTR is low, the modem goes off-hook

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

MNP - EXTENDED SERVICES
Type:	Configuration
Format:	AT [cmds] -Kn [cmds]
Description:	Selects MNP extended services
Command	Function
-K0	MNP extended services disabled
-K1	MNP extended services enabled if V.42bis mode was enabled

LOCAL CONFIGURATION
Type:	Immediate
Format:	CNLn
Description:	Any AT command may be entered as a parameter of this command; V.25bis escape sequence

REQUEST LIST OF STORED NUMBERS
Type:	Immediate
Format:	RLN
Description:	Requests the list of phone numbers stored in memory

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

EXTENDED RESULT CODES
Type:			Register
Format			AT [cmds] S95=n [cmds]
Range:			0-255
Unit:			Bit-mapped
Description:			Works in combination with the Wn command to enable extended result codes.
Bit	Value	ATW0		ATW1	ATW2
0	0 1	CONNECT result code reports DTE speed. CONNECT result code reports line speed		PROTOCOL result codes enabled. CONNECT result code reports DTE speed. PROTOCOL result codes enabled. CONNECT result code reports line speed.	CONNECT result code reports line speed CONNECT result code reports line speed
1	0 1	Disabled CONNECT result code reports DTE speed. /ARQ added to CONNECT result code.		Disabled PROTOCOL result codes enabled. CONNECT result code reports DTE speed. /ARQ added to CONNECT result code.	Disabled CONNECT result code reports line speed. /ARQ added to CONNECT result code.
2	0 1	Disabled CARRIER result codes enabled. CONNECT result code reports DTE speed.		Disabled CARRIER result codes enabled. PROTOCOL result codes enabled. CONNECT result code reports DTE speed.	Disabled CARRIER result codes enabled. CONNECT result code reports line speed.
3	0 1	Disabled PROTOCOL result codes enabled. CONNECT result code reports DTE speed.		Disabled PROTOCOL result codes enabled. CONNECT result code reports DTE speed.	Disabled PROTOCOL result codes enabled. CONNECT result code reports line speed.
4	0	Not used.		Not used.	Not used.
5	0 1	Disabled COMPRESSION result codes enabled. CONNECT result code reports DTE speed.		Disabled PROTOCOL result codes enabled. COMPRESSION result codes enabled. CONNECT result code reports DTE speed.	Disabled COMPRESSION result codes enabled. CONNECT result code reports line speed.