AT Command Set
MC35_ATC_01_V04.00 Page 61 of 238 02.04.2002
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 sup-
ported <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>[,<name>
[,<ce>]]
Response
TA selects the bearer service <name>, the data rate <speed> and the connec-
tion element <ce> to be used when data calls are originated. T he settings also
apply to mobile terminated data calls, especially when sing le numbering
scheme calls or calls from analog devices are rec eived (see also Chapter
4.45).
OK
Parameter
<speed> 0 auto bauding
4 2400 bps( V.22bis)
6 4800 bps( V.32)
7 9600 bps(V.32)
14 14400 bps (V.34)
68 2400 bps (V.110)
70 4800 bps (V.110)
71 9600 bps (V.110)
75 14400 bps (V.110)
<name> 0 asynchronous modem
<ce> 1 non-transparent
Transparent mode is not supported.
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.