Chapter 1 – AT Commands, S-Registers and Result Codes

Command:

%En

Fallback and Fall Forward Control

Values:

 

n = 0, 1, or 2

 

Default:

 

2

 

 

Description:

 

%E0

Disable fallback and fall forward.

 

 

%E1

Enable fallback, disable fall forward.

 

 

%E2

Enable fallback and fall forward.

Command:

%Hn

Direct Connect Enable

Values:

 

n = 0, 1

 

 

Default:

 

0

 

 

Description:

 

%H0

Sets callback security to normal operation.

 

 

%H1

All callback security calls will be direct connect regardless of whether the

 

 

 

password or phone number has the - character.

Command:

%Rn

Cisco Configuration

Values:

 

n = 0, 1

 

 

Default:

 

0

 

 

Description:

 

%R0

Disables Cisco configuration.

 

 

%R1

Sets E0, Q1, &D0, \N0, $SB9600, and %S1 for operation with a Cisco

 

 

 

router.

Command:

%Sn

Command Speed Response

Values:

 

n = 0, 1

 

 

Default:

 

0

 

 

Description:

 

%S0

Sets modem to respond to AT commands at all normal speeds.

 

 

%S1

AT commands accepted at 115200 bps only. Commands at other speeds

 

 

 

are ignored.

Command:

$Dn

DTR Dialing

 

Values:

 

n = 0 or 1

 

Default:

 

0

 

 

Description:

 

$D0

Disables DTR dialing.

 

 

$D1 Dials the number in memory location 0 when DTR goes high.

Command:

$EBn

Asynchronous Word Length

Values:

 

n = 0 or 1

 

Default:

 

0

 

 

Description:

 

$EB0

Enables 10-bit mode.

 

 

$EB1

Enables 11-bit mode.

Command:

$MBn

Online BPS Speed

Values:

 

n = speed in bits per second

Default:

 

28,800

 

 

Description:

 

$MB75

 

Selects CCITT V.23 mode

 

 

$MB300

Selects 300 bps on-line

 

 

$MB1200

Selects 1200 bps on-line

 

 

$MB2400

Selects 2400 bps on-line

 

 

$MB4800

Selects 4800 bps on-line

 

 

$MB9600

Selects 9600 bps on-line

$MB14400 Selects 14400 bps on-line $MB19200 Selects 19200 bps on-line $MB28800 Selects 28800 bps on-line $MB33600 Selects 33600 bps on-line

Multi-Tech Systems, Inc. SocketModem MT5634SMIxx Reference Guide (S000263C)

17

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Multi-Tech Systems MT5634SMI V.34, MT5634SMI V.92 Command Fallback and Fall Forward Control, Command Direct Connect Enable

MT5634SMI V.34, MT5634SMI V.92 specifications

The Multi-Tech Systems MT5634SMI is a versatile and robust external modem designed to cater to a variety of communication needs. As a V.92/V.34 standard modem, it provides reliable and efficient data connections for both home and business users. Its unique blend of features and technologies makes it an excellent choice for users looking to achieve optimal performance in their data transmission.

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