Rainbow Electronics GM862-QUAD-PY User Manual

Page 72

AT Commands Reference Guide

80000ST10025a Rev. 5 - 09/07/08

page 72 of 434

+CBST - Select Bearer Service Type

SELINT 0 / 1

AT+CBST
[=
[,
[,]]]

Set command sets the bearer service with data rate , and
the connection element to be used when data calls are originated.
This setting is also used during mobile terminated data call setup, in case of
single numbering scheme calls (refer +CSNS).

Parameters:

- data rate

0 - autobauding (automatic selection of the speed, factory default)

1 - 300 bps (V.21)

2 - 1200 bps (V.22)

3 - 1200/75 bps (V.23)

4 - 2400 bps (V.22bis)

6 - 4800 bps (V.32)

7 - 9600 bps (V.32)

14 - 14400 bps (V.34)

65 - 300 bps (V.110)

66 - 1200 bps (V.110)

68 - 2400 bps (V.110 or X.31 flag stuffing)

70 - 4800 bps (V.110 or X.31 flag stuffing)

71 - 9600 bps (V.110 or X.31 flag stuffing)

75 - 14400 bps (V110 or X.31 flag stuffing)

- bearer service name

0 - data circuit asynchronous (factory default)

- connection element

0 - transparent

1 - non transparent (default)

Note: the settings

AT+CBST=0,0,0

AT+CBST=14,0,0

AT+CBST=75,0,0

are not supported.

Note: If all parameters are omitted then the behaviour of Set command is

the same as Read command.

Note: the following settings are recommended

AT+CBST=71,0,1 for mobile-to-mobile calls

AT+CBST=7,0,1 for mobile-to-fix calls

AT+CBST?

Read command returns current value of the parameters ,
and

AT+CBST=?

Test command returns the supported range of values for the parameters.

Reference GSM

07.07

+CBST - Select Bearer Service Type

SELINT 2

AT+CBST=

Set command sets the bearer service with data rate , and