Multi-Tech MultiModem EDGE Reference Manual page 100

The list of operators comes in the following order: Home network, networks referenced in SIM
and other networks. The operator list is followed by a list of the supported <mode>s and
<format>s. These lists are delimited from the operator list by two commas.
If the test command is used during an ongoing GPRS transfer, traffic will be interrupted for up to
one minute.
The AT+COPS read command returns the current <mode> and the currently selected operator. If
no operator is selected, <format> and <oper> are omitted.
The AT+COPS write command forces an attempt to select and register to the GSM network
operator (see note below). 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
commands, too.
Test Command Syntax:
Response:
Read Command Syntax:
Response:
Write Command Syntax:
Response:
Parameter Descriptions:
<opStatus>
Status
0 Unknown
1 Operator available
2 Current operator
3 Operator forbidden
<oper>
Operator
If test command: Operator name in long alphanumeric format and numeric format.
If read command: Operator name as per <format>.
If write command: Operator name in numeric format.
<mode>
Parameter values 0 and 1 are stored non-volatile in the Multi-Tech wireless modem.
0 Automatic mode; <oper> field is ignored. Default.
1 Manual operator selection
Write command requires <oper> in numeric format; i.e., <format> shall be 2.
Read command returns the current <mode> and the currently selected <oper>. If no operator is
selected, <format> and <oper> are omitted.
2 Manually deregister from network and remain unregistered until <mode>=0 or 1 or 4 is selected.
3 Set only <format> (for AT+COPS read command).
4 Automatic / manual selection; if manual selection fails, automatic mode (<mode>=0) is entered
(<oper> field will be present).
<format>
0 Long alphanumeric format of <oper>. Can be up to 16 characters long. Default.
2 Numeric format of <oper>. This is the GSM Location Area Identification (LAI) number, which
consists of the 3-digit Mobile Country Code (MCC) plus the 2- or 3-digit Mobile Network Code
(MNC).
Notes
•
It is not recommended to use the AT+COPS command before passing the CHV (card holder verification) /
SIM PIN1 verification. In case of entering of AT+COPS= 0 before PIN1 verification the module will answer
with OK and does not try to register to the network. Also, the test command should only be used after PIN1
authentication.
•
It's possible to apply a 5- or 6-digit LAI for numeric format of <oper> parameter. Please use the correct 2- or
3-digit Mobile Network Code. Otherwise an unintended PLMN could be selected.
Multi-Tech Systems, Inc. AT Commands for EDGE Modems (S000371G)
AT+COPS=?
+COPS: [list of present operators (<opStatus>, long alphanumeric <oper>s,,numeric
<oper>s ], , (list of supported <mode>s), (list of supported <format>s)
OK
ERROR
+CME ERROR: <err>
AT+COPS?
+COPS:<mode>[, <format>[, <oper>]]
OK
ERROR
+CME ERROR: <err>
AT+COPS=<mode>[, <format>[, <oper>]]
OK
ERROR
+CME ERROR: <err>
Chapter 8 – Network Service Commands
100