Sony Ericsson TT4031 (SE-GM29) - Manual (Page 110)

Owner’s Manual Rev 1.0 Page 110 of 110
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
type
AT+CBST=[<speed>
,
[<name>,[<ce>]]]
•_ OK
•_ ERROR
Read the command AT+CBST?
•_ +CBST:
<speed>,<name>,
<ce>
•_ OK
•_ ERROR
Test if the command is
supported
AT+CBST=? •_ +CBST: (list of
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
6 4800 bps V.32
7 9600 bps V.32