Siemens Brodersen MC55 AT - Manual (Page 298)

MC55_ATC_V04.00 Page 298 of 475 3/17/06
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11.20 Using GPRS AT commands (Examples)
Examples
EXAMPLE 1
Defining and using a Context Definition ID (CID):
Every time a CID is used as a parameter for a GPRS command the CID has to be defined before by using
the
AT+CGDCONT
command. To get the parameter of a CID use the
AT+CGDCONT
read option. If the response
of 'AT+CGDCONT?' is OK only, there is no CID defined.
All parameters of the CID are initiated by NULL or not present values, and the CID itself is set to be undefined.
To define a CID use the
AT+CGDCONT
command with at least one CID parameter. At the moment the mobile
supports CID 1 and CID 2 by using the
AT+CGDCONT
command.
Define CID 1 and set the PDP type to IP, access point name and IP address are not set:
Define CID 2 and sets PDP type, APN and IP addr:
A following read command will respond:
Set the CID 1 to be undefined:
A following read command will respond:
AT+CGDCONT?
OK
There is no CID defined
AT+CGDCONT=1,"IP"
OK
AT+CGDCONT=2,"IP", "internet.t-d1.gprs", 111.222.123.234
OK
AT+CGDCONT?
+CGDCONT:1,"IP","","",0,0
+CGDCONT:2,"IP","internet.t-d1.gprs",111.222.123.234
OK
AT+CGDCONT=1
OK
AT+CGDCONT?
+CGDCONT:2,"IP","internet.t-d1.gprs",111.222.123.234
OK