Nokia 6090 - CREG Network Registration

Nokia 6090 AT Command Set 43
+CREG Network Registration
Controls presentation of +CREG unsolicited result code or returns current registration
status. (GSM 07.07)
Syntax:
AT+CREG=[<n>]
Default option is 0.
AT+CREG?
Query current setting.
Response is +CREG:
<n>,<stat>[,<lac>,<ci>]
AT+CREG=?
Show supported values.
Parameters:
<n>:
0
disable network registration unsolicited
result code
1
enable network registration unsolicited
result code +CREG: <stat>
2
enable network registration and location
information unsolicited result code
+CREG: <stat>,<lac>,<ci>
<stat>:
0
not registered, ME is not currently
searching a new operator to register to
1
registered, home network
2
not registered, but ME is currently
searching a new operator to register to
3
registration denied
4
unknown
5
registered, roaming
<lac>: string type; two byte location area code in hexadecimal format (e.g. "00C3"
equals 193 in decimal)
<ci>: string type; two byte cell ID in hexadecimal format
Examples:
/* Nokia 6090 is switched on */
at+creg=?
request, which values are supported
Response:
+CREG: (0-2)
OK
at+creg?
Request the current settings
Response:
+CREG: 0,2
OK
at+creg=2
Set <n> value to 2
Response:
OK
at+creg?
Request the current settings
Response:
+CREG: 2,2