Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 199)

GSM Network Commands
Network Registration +CREG
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WM_DEV_OAT_UGD_049 - 001 VOLUME 2 August 23, 2007
• For <stat> ≠ 3 (nominal case)
Unsolicited response
+CREG: <stat>[,<lac>,<cid>]
• For <stat> = 3 (specific case)
Unsolicited response
+CREG: <stat>[,<rejectCause>]
11.2.3 Parameters and Defined Values
<mode>:
request operation
0 disable network registration unsolicited result code (default
value)
1 enable network registration code result code +CREG: <stat>
2 enable network registration and location information
unsolicited result code +CREG: <stat>,<lac>,<ci> if there is a
change of network cell
<stat>: network registration state
0 not registered, ME is not currently searching for a new
operator
1 registered, home network
2 not registered, ME currently searching for a new operator
3 registration denied
4 unknown
5 registered, roaming