Technical information

Network
3-138 AT Commands Reference Manual January 31, 2007
Command
Type
Syntax Response/Action Remarks
Set
AT+COPS=[<mo
de>[,<format>
[,<oper>]]]
OK
or:
+CME ERROR: <err>
The Set command can force an attempt to
select and register a specific GSM network
operator. The <mode> selects whether this is
done automatically by the G24, 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).
<mode>=2 forces an attempt to deregister
from the network.
<mode>=3 sets the operator format to all
further Read commands (+COPS?) as well.
The selected mode applies to future network
registrations, for example, once you
deregister from the network, the G24 remains
unregistered until you select <mode>=0,
<mode>=1, or <mode>=4
Read
AT+COPS? +COPS:
<mode>[,<format>,<op
er>]
OK
or:
+CME ERROR: <err>
The Read command returns the current mode
and the currently selected operator.
Test
AT+COPS=? +COPS: [list of
supported (<stat>, long
alpha numeric <oper>,
short alphanumeric
<oper>, numeric
<oper>)] [,list of
supported <mode>s,
(list of supported
<format>s)]
OK
or:
+CME ERROR: <err>
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.
After the operator list, the G24 returns lists of
the supported <mode>s and <format>s. These
lists are separated from the operator list by
two commas.