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This interface enables to query the network state and network selection mode
currently registered by the MS. The Execution command enables to select the
GSM/UMTS network automatically or manually. The READ command returns the
current network selection mode. If the registration is successful, the current operator
information will be returned. The TEST command returns the list of (up to 20)
operators existent in the current network.
12.3.3 Defined Values
<mode>:
0
automatic (<oper> field is ignored)
1
manual (<oper> field shall be present, and <AcT> optionally)
2
deregister from network (NOT SUPPORT)
3
set only <format> (for read command +COPS?), do not attempt
registration/deregistration (<oper> and < AcT> fields are ignored);
4
manual/automatic (<oper> field shall be present); if manual selection fails,
<format>:
0
long format alphanumeric <oper>
1
short format alphanumeric <oper>
2
numeric <oper>
<oper>:
string type; <format> indicates if the format is alphanumeric or numeric; long
alphanumeric format can be up to 16 characters long and short format up to 8
characters (refer GSM MoU SE.13); numeric format is the GSM Location Area
Identification number (refer TS 24.008 subclause 10.5.1.3) which consists of a three
BCD digit country code coded as in ITU-T E.212 Annex A, plus a two BCD digit network
code, which is administration specific; returned <oper> shall not be in BCD format, but
in IRA characters converted from BCD; hence the number has structure: (country code
digit 3) (country code digit 2) (country code digit 1) (network code digit 3) (network code
digit 2) (network code digit 1)
<stat>:
0
unknown
1
available
2
current
3
forbidden
<rat> access technology selected
0
GSM
2
UTRAN
Issue 18 (2009-06-22)
this value is not applicable in read command response
automatic mode (<mode>=0) is entered
Commercial in Confidence
HUAWEI UMTS M2M Module V100R001
AT Command Interface Specification
Page 128 of 169
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