AT Commands

75

AT command formats

This command is used to set the various parameters described below:

<carrier>

The modem protocol. Valid values are:

 

Value

 

Meaning

 

V92

 

V.92

(default)

 

V90

 

V.90

 

 

V34

 

V.34

 

 

V32T

 

V.32ter

 

V32B

 

V.32bis

 

V32

 

V.32

 

 

V22B

 

V.22bis

 

V22

 

V.22

 

 

Bell212A

Bell 212A

 

V23C

 

V.23, constant carrier,

 

 

 

asymmetric FDM

 

V21

 

V.21

 

 

Bell103

Bell 103

<automode>

0

Disables automatic modulation

 

 

negotiation

 

 

1

Enables automatic modulation

 

 

negotiation (default)

If a <max_rate> value is specified, <automode> is automatically disabled.

<min_rate> The minimum receive rate. Valid <min_rate> values are from 300 to 57333.