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at+cgatt=1
OK
+CGREG: 001
4.6.1.5
+COPS, Operator Selection
This command enables accessories to access the network registration information, and the selection and registration of the GSM
network operator.
Set Command
The Set command forces an attempt to select and register the GSM network operator. The <mode> selects whether this is done
automatically by the g20, or whether the selection is forced to an operator <oper> (given in format <format>). If the selected
operator is not available, no other operator is selected (except when the <mode> is set to 4).
The selected operator name format applies to all further Read commands (+COPS?) as well. <mode>=2 forces an attempt to
deregister from the network.
The selected mode applies to future network registrations, for example, once you deregister from the network, the g20 remains
unregistered until you select <mode>=0, or <mode>=1.
Command
AT+COPS=[<mode>[,<format>
[,<oper>]]]
Read Command
The Read command returns the current mode and the currently selected operator.
Command
AT+COPS?
Test Command
The Test command returns a list of quadruplets, each representing an operator present in the network. A quadruplet consists of
an integer indicating the availability of the operator <stat>, long and short alphanumeric format of the name of the operator, and
numeric format representation of the operator. If any of the formats are unavailable, there is an empty field.
98-08901C68-O
Response/Action
OK
or:
+CME ERROR: <err>
Response/Action
+COPS: <mode>[,<format>,<oper>]
OK
or:
+CME ERROR: <err>
AT Commands Reference
143
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