MC55 AT Command Set
10.2 AT+CGANS s
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MC55_ATC_V01.05 Page 246 of 469 2/10/04
Confidential / Released
Note
• If <response> is 1, the following procedure is followed by the MT:
If the <L2P> parameter value is unacceptable to the MT, the MT will return an ERROR or +CME ERROR
response. Otherwise, the MT issues the intermediate result code C ONNECT and enters V.25ter online data
state.
A <cid> may be specified for use in the context activation request.
During the PDP startup procedure the MT has the PDP type and the PDP address provided by the network
in the Request PDP context activation message. If this is in conflict with the information provided by a spec-
ified <cid>, the command will fail. There will be no conflict, if the PDP type matches exactly and the PDP
address given by the context definition for <cid> is empty or matches exactly with the add ress specified with
the network PDP context activation message.
The context will be activated using the values for PDP type and address provided by the network, together
with all other information found in the PDP context definition. An APN may or may not be required, de pending
on the application.
If no <cid> is given or if there is no matching context definition, the MT will attempt to activ ate the context
using the values for PDP type and address provided by the network. The othe r parameters will be set to their
default values (see AT+CGDCONT).
If activation is successful, data transfer may proceed.
After data transfer is complete, and the layer 2 protocol termination procedure has completed successfully,
the V.25ter command state is reentered and the MT returns the final result code OK.
In the event of an erroneous termination or a failure to start up, the V.25ter command state is re-entered an d
the MT returns the final result code NO CARRIER, or if enabled, +CME ERROR. Attach, activate and other
errors may be reported. It isalso an error to issue the AT+CGANS command when there is no pending network
request.
The command may be used in both normal and modem compatibility modes.