Specifications

AT Command Set for L55 Platform 2003-11-21
Copyright  Siemens AG 2003 All Rights Reserved Page 57 of 131
2.3.6.12 AT+CGREG
AT+CGREG GPRS network registration status
Test command
AT+CGREG=?
Response
+CGREG: (list of supported <n>s)
OK/ERROR/+CME ERROR
Parameter
<n>
0 Suppresses the unexpected network-
status messages
Displays the unexpected network-status messages:OK/ERROR/+CME
ERROR
Read command
AT+CGREG?
Response
+CGREG: <n>,<stat>[,<lac>,<ci>]
OK/ERROR/+CME ERROR
Parameter
<n>
See Test command
<stat> Status
0 Not registered, not currently searching
1 registered, home network
2 Not registered, but currently searching
3 registration denied by network
4 Unknown
5 Registered, roaming
<lac> Hexadecimal 2-byte string type of location area code
<ci> Hexadecimal 2-byte string type of cell ID
Write command
AT+CGREG=[<n>]
Parameter
<n>
See Test command
Response
OK/ERROR/+CME ERROR
Unsolicited message
+CGREG: <stat>