AT Commands Reference
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Test Command
The Test command is used for requesting information on the supported GPRS mobile classes.
The following table shows the +CGCLASS parameters.
Example
AT+CGCLASS=?
+CGCLASS: (B)
OK
4.12.1.2 +CGDCONT, Define PDP Context
This command specifies the PDP (Packet Data Protocol) context.
Set Command
The Set command specifies the context identification parameter values for a PDP context. A special form of the Set command,
+CGDCONT= <cid> causes the values for context number <cid> to become undefined.
Command Response/Action
AT +CGCLASS=? +CGCLASS: (list of supported <class>s)
OK
or;
+CME ERROR: <err>
Table 104. +CGCLASS Parameters
<Parameter> Description
<class> String parameter that indicates the GPRS mobile class
BClass B
Note
If a SIM card without GPRS allowed is used:
at+cgclass=?
+CGCLASS: (CC) //note that CC is a not supported value.
Note
In some cases, the command passes even when the syntax is incorrect.
Command Response/Action
AT+CGDCONT=[<cid>
[,<PDP_type>[,<APN>
[,<PDP_addr>[,<d_comp>
[,<h_comp>[,<pd1> [,…[,pdN]]]]]]]]]
OK
or:
+CME ERROR: <err>