98-08901C68-O 221
AT Commands Reference
Example
AT+CGACT=?
+CGATT: (0, 1)
OK
AT+CGACT?
+CGACT: 1,0
+CGACT: 2,0
+CGACT: 3,0
OK
AT+CGACT=1
ERROR //GPRS network not present.
4.12.1.6 +CGATT, GPRS Attach or Detach
This command attaches/detaches the MT to/from the GPRS service. When the command has completed, the MT remains in
V.25ter command state. If the MT is already in the requested state, the command is ignored and the OK response is returned. If
the requested state cannot be achieved, an ERROR or +CME ERROR response is returned. Extended error responses are enabled
by the +CMEE command. Any active PDP contexts will be automatically deactivated when the attachment state changes to
detached.
Set Command
The Set command attaches/detaches the MT to/from the GPRS service.
Note
In some GPRS networks, for example Germany, +CGACT is not supported. The ATD*99# command can be used
to make a connection.
Command Response/Action
AT+CGATT= [<state>] OK
or:
+CME ERROR: <err>
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