Specifications

AT Command Set
TC35-ATC-01-V02.10 Page 53/145 02.10 / 23.05.2001
4.5 AT+CBST Select bearer service type
Test command
AT+CBST=?
Response
+CBST: (list of supported <speed>s) ,(list of supported <name>s) ,(list of supported
<ce>s) OK
Parameter
See write command
Read command
AT+CBST?
Response
+CBST: <speed>,<name>,<ce>
OK
Parameter
See write command
Write command
AT+CBST=
[<speed> [,<na
me>[,<ce>]]]
Response
TA 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 case of single numbering
scheme calls.
OK
Parameter
<speed> 0 auto bauding
4 2400 bps( V.22bis)
6 4800 bps( V.32)
7 9600 bps(V.32)
68 2400 bps (V.110)
70 4800 bps (V.110)
71 9600 bps (V.110)
<name> 0 asynchronous modem
<ce> 1 non-transparent
Transparent mode is not available at TC35
Reference
GSM 07.07
Note
GSM 02.02[1]: List of allowed combinations of subparameters.
The PLMN influences the second air interface (to the terminator), therefore
another mode may be established by the network.