Card Type	Modem (synchronous/asynchronous)
Chipset	AT & T
Maximum Data Rate	28.8Kbps
Maximum Fax Rate	14.4Kbps
Data Bus	Serial
Fax Class	Class I & II
Data Modulation	Bell 103A/212A ITU-T V.21, V.22, V.22bis, V.23, V.32, V.32bis, V.34 AT&T V.32terbo
Fax Modulation	ITU-T V.17, V.21CH2, V.27ter, V.29
Error Correction/Compression	MNP5, V.42, V.42bis

CONNECTIONS
Function	Label	Function	Label
Line in	CN1	RS-232/422	CN3
Line out	CN2	DC power in	CN4

DIAGNOSTIC LED(S)
LED	Color	Status	Condition
MR	Red	On	Power is on
MR	Red	Off	Power is off
TR	Red	On	DTR signal is high
TR	Red	Off	DTR signal is low
SD	Red	On	Modem is transmitting data
SD	Red	Off	Modem is not transmitting data
RD	Red	On	Modem is receiving data
RD	Red	Off	Modem is not receiving data
OH	Red	On	Modem is off-hook
OH	Red	Off	Modem is on-hook
CD	Red	On	Carrier signal detected
CD	Red	Off	Carrier signal not detected

DIAGNOSTIC LED(S) (CON’T)
LED	Color	Status	Condition
AA	Red	On	Auto-answer enabled
AA	Red	Off	Auto-answer disabled
EC	Red	On	Error correction enabled
EC	Red	Off	Error correction disabled

SUPPORTED STANDARD COMMANDS

Basic AT Commands

+++, ‘comma’, A/

A, E, H, L, M, N, O, P, Q, T, V, X, Y, Z

&C, &D, &F, &G, &K, &L, &M, &P, &Q, &R, &S, &T, &V, &W, &X, &Y, &Z

Extended AT Commands

\A, \B, \C, \G, \J, \K, \N, \Q, \T, \X

%A, %B, %C, %D, %E, %N, %Q

S-Registers

S0, S1, S2, S3, S4, S5, S6, S7, S8, S9, S10, S11, S12, S14, S16, S18, S21, S22, S23, S25, S26

S27, S30, S91

Note: See MHI documentation for complete information.

UNIDENTIFIED COMMANDS
Command	Default
S15	83
S17	75
S19	3
S20	0
S24	72
S28	16

DIAL
Type:	Immediate
Format:	AT [cmds] D<#>;[cmds]
Description:	Dials the telephone number indicated 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.
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 Quiet 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^	Calling tone enabled for this call.
D;	Modem returned to idle state after dialing. The semicolon can only be placed at the end of the dial command.

V.32terbo AND V.34 PROTOCOLS
Type:	Configuration
Format:	AT [cmds] \Mn [cmds]
Description:	Selects whether the modem will use V.32terbo and V.34 modulation protocols.
Command	Protocol
í \M0	V.32terbo and V.34 protocols enabled.
\M1	V.32terbo protocol disabled.
\M2	V.34 protocol disabled.