Nokia 6090 AT Command Set 14+CBST Select Bearer Service TypeSet command selects the bearer service with data rate , and theconnection element to be used when data calls are originated (GSM 02.02).Values may also be used during mobile terminated data call setup, especially in caseof single numbering scheme calls (see the command +CSNS, page 48). Testcommand returns values supported by the TA as compound values. (GSM 07.07)Syntax:AT+CBST=[[, [, ]]] Select bearer service type. Defaultoption is 0, 0, 1.AT+CBST? Query current setting.Response is +CBST: , ,AT+CBST=? Show supported values.Response is +CBST: (list of supported's), (list of supported 's),(list of supported 's)Parameters::0 autobauding (automatic selection of thespeed; this setting is possible in case of3.1 kHz modem and non-transparentservice)1 300 bps (V.21)2 1200 bps (V.22)3 1200/75 bps (V.23)4 2400 bps (V.22bis)5 2400 bps (V.26ter)6 4800 bps (V.32)7 9600 bps (V.32)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):0 data circuit asynchronous (UDI or 3.1 kHzmodem)2 PAD Access (asynchronous) (UDI):0 transparent1 non-transparent2 both, transparent preferred3 both, non-transparent preferredNote: The parameter '2' can only be used, in combination with valid and parameters.Certain combinations with = 2 are not allowed. For example, if the settingswere at+cbst=0,0,1 and you set after this at+cbst=0,2,1 . The ME will return "Error"because the setting at+cbst=0,2,1 is not allowed.The parameter shall be used in an appropriate context. i.e. at+cbst=66,2,1, isaccepted.
