Westermo GD-01 - Manual (Page 169)

169 6196-2220
The MT may also have some or all of the following information:
• The MT may have a priori knowledge, for example, it may implement only one
PDP type.
• The command may have provided an <L2P> parameter value.
• The TE may provide one or both of PDP type and PDP address to the MT in the PDP
startup.
If any of this information is in conflict, the command will fail.
If one or more <cid> is given then an attempt is made to identify an appropriate context
definition by matching the PDP type and PDP address in the network request with the
PDP type and PDP address in each of the specified context definitions (in the order in
which their <cid>s appear in the command) as follows:
• The PDP type must match exactly.
• The PDP addresses are considered to match if they are identical
or if the address in the context definition is unspecified.
The context is activated using the values for PDP type and PDP address provided by the
network, together with the other information found in the PDP context definition. An
APN may or may not re required, depending on the application.
If no <cid> is given or if there is no matching context definition, the MT will attempt to
activate the context using the values for PDP type and PDP address provided by the net-
work, together with any other relevant information known to the MT.The other context
parameters will be set to their default values.
If the activation is successful, data transfer may proceed.
After data transfer is complete, and the layer 2 protocol termination procedure has com-
pleted successfully, the V.25ter command state is re-entered and the MT returns the final
result code OK
In the event of an erroneous termination or a failure to startup, the V.25ter command
state is re-entered and the MT returns the final result code NO CARRIER or, if enabled,
+CME ERROR. Attach, activate and other errors may be reported. It is also an error to
issue the +CGANS command when there is no outstanding network request.
This command may be used in both normal and modem compatibility modes.
Syntax:
+CGANS=[<response>, [<cid>]]
Response Syntax:
OK
ERROR
Response on “+CGANS=?”
+CGANS: (list of supported <response>s), (list of supported <L2P>s)
B A C K