4 AT Commands, S-Registers, and Result Codes

Command:

A/

Repeat Last Command

Values:

 

n/a

Description:

 

Repeat the last command string. Do not precede

 

 

this command with AT. Do not press ENTER to

 

 

execute.

Command:

Bn

Communication Standard Setting

Values:

 

n = 0–3, 15, 16

Default:

 

1 and 16

Description:

B0

Select ITU-T V.22 mode when modem is at 1200

 

 

bps.

 

B1

Select Bell 212A when modem is at 1200 bps.

 

B2

Deselect V.23 reverse channel (same as B3).

 

B3

Deselect V.23 reverse channel (same as B2).

 

B15

Select V.21 when the modem is at 300 bps.

 

B16

Select Bell 103J when the modem is at 300 bps.

Command:

Cn

Carrier Control

Values:

 

n = 1

Default:

 

1

Description:

C0

Transmit carrier always off. (Not supported.)

 

C1

Normal transmit carrier switching (included for

 

 

backward compatibility with some software).

Command:

Ds

Dial

Values:

 

s = dial string (phone number and dial modifiers)

Default:

 

none

Description:

 

Dial telephone number s, where s may up to 40

 

 

characters long and include the 0–9, *, #, A, B,

C, and D characters, and the L, P, T, V, W, S, comma (,), semicolon (;), !, @, ^ and $ dial string modifiers.

49

Page 59
Image 59
Multi-Tech Systems MT5634ZBAV manual Repeat Last Command, Communication Standard Setting, Carrier Control, Dial