CS-3G Digital Transceiver Kits (including the COM111 modem)
B-2
B.2 Network Registration Checks
AT+COPS
Operator selection
Test command
AT+COPS=?
Response
The modem returns a list of quadruplets, each representing an operator
present in the network. Any of the formats may be unavailable and
should then be an empty field. The list of operators will be in the
following order: home network, networks referenced in SIM, and other
networks.
+COPS: [list of supported (<stat>,long alphanumeric <oper>,short
alphanumeric <oper>,numeric <oper>[,<AcT>])s]
OK
Parameter:
See set command
Read command
AT+COPS?
Response
The modem returns the current mode and the currently selected
operator. If no operator is selected
,<format>
and
<oper>
are omitted.
+COPS : <mode>[, <format>[, <oper>,[<AcT>]]]
OK
Parameter:
See set command
Set command
AT+COPS=<mode>[,<fo
rmat>[,<oper>[,<AcT>]]]
Response
The modem forces an attempt to select and register the network
operator. If the selected operator is not available, no other operator will
be selected (except
<mode>=4
). The selected operator name format will
apply to further read command (
+COPS?)
also.
OK
Parameter
<stat>
0 unknown
1
operator available
2
operator current
3
operator forbidden
<mode>
0: automatic (default value)
1: manual
2: deregistration ; ME will be unregistered until <mode>=0 or 1 is
selected.
3: set only <format> (for read command AT+COPS?)
4: manual / automatic (<oper> shall be present), if manual selection
fails, automatic mode is entered.
127: Force to automatic at next power cycle.
<format>:
format of <oper> field
<format>
0: long alphanumeric format <oper>
1: short alphanumeric format <oper>
2: numeric <oper> (default value) <stat>: status of <oper>
<stat>
0: unknown
1: available
2: current
3: forbidden
<oper>:
operator identifier (MCC/MNC in numeric format only for
operator selection)
<Act>
: Access Technology
– 0: GSM (2), 2: UTMS (3G)