Data - CSD/HSCSD

NOTE! - Since the modem does not support V42bis compression the following commands have not been implemented:

•_AT+DS

•_AT+DR

5.1 AT+CBST Select Bearer Service Type

Description

Command

Possible Responses

 

 

 

Select bearer service

AT+CBST=[<speed>

•_ OK

type

,

•_ ERROR

 

[<name>,[<ce>]]]

 

 

Read the command

AT+CBST?

•_ +CBST:

 

 

<speed>,<name>,

 

 

<ce>

 

 

•_ OK

 

 

•_ ERROR

Test if the command is

AT+CBST=?

•_ +CBST: (list of

supported

 

 

supported <speed>s,list

 

 

of supported <name>s, list of supported <ce>s)

•_ OK

•_ ERROR

Selects the bearer service <name> with data rate <speed>, and the connection element <ce> to be used when data calls are originated. Values may also be used during mobile terminated data call setup, especially in the case of single numbering scheme calls.

Test command returns values supported by the TA as compound values.

<speed>

Description

 

 

0

Auto selection of baud rate

 

 

4

2400 bps V.22bis

64800 bps V.32

79600 bps V.32

Owner’s Manual

Rev 1.0

Page 110 of 110