SimCom SIM700C

Smart Machine Smart Decision
SIM7000 Series_AT Command Manual_V1.03 49 2018-05-08
3.2.14 AT+CREG Network Registration
AT+CREG Network Registration
Test Command
AT+CREG=?
Response
+CREG: (list of supported <n>s)
OK
Parameters
See Write Command
Read Command
AT+CREG?
Response
TA returns the status of result code presentation and an integer <stat>
which shows whet
her the network has currently indicated the registration
of the ME. Location information elements <lac> and <ci
> are returned
only when <n>=2 and ME is registered in the network.
+CREG: <n>,<stat>[,<lac>,<ci>,<netact>]
OK
If error is related to ME functionality:
+CME ERROR: <err>
Write Command
AT+CREG[=<n>
]
Response
TA controls the presentation of an unsolicited result code +CREG: <stat>
when <n>=1 and there is a change in the ME network registration status.
OK
Parameters
<n> 0 Disable network registration unsolicited result code
1 Enable network registration unsolicited result code
+CREG: <stat>
2 Enable network registration unsolicited result code with
location information(
2 is only for 7000 series module
which support GPRS.)
CREG: <stat>[,<lac>,<ci>,<netact>]
<stat> 0 Not registered, MT is not currently searching a new
operator to register to
1 Registered, home network
2 N
ot registered, but MT is currently searching a new
operator to register to
3 Registration denied
4 Unknown
5 Registered, roaming
<lac> String type
(string should be included in quotation marks);
two byte location area code in hexadecimal format
<ci> String type
(string should be included in quotation marks);
two byte cell ID in hexadecimal format
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