Quectel EC25 Command Manual page 168

<stat> 0 Not registered. MT is not currently searching an operator to register to. The UE is
1
2
3
4
5
String type. Two-byte location area code in hexadecimal format (e.g. "00C3" equals 195 in
<lac>
decimal)
<ci> String type. 16-bit (GSM) or 28-bit (UMTS/LTE) cell ID in hexadecimal format
<Act> Access technology selected
0
2
3
4
5
6
7
Example
AT+CGREG=2
OK
AT+CGATT=0
OK
+CGREG: 2
AT+CGATT=1
OK
+CGREG: 1,"D504","80428B5",7
EC25&EC21_AT_Commands_Manual
in GMM state GMM-NULL or GMM-DEREGISTERED-INITIATED. The GPRS
service is disabled, but the UE is allowed to attach for GPRS if requested by the
user.
Registered, home network. The UE is in GMM state GMM-REGISTERED or
GMM-ROUTING-AREA-UPDATING-INITIATED INITIATED on the home PLMN.
Not registered, but MT is currently trying to attach or searching an operator to
register to. The UE
GMM-REGISTERED-INITIATED. The GPRS service is enabled, but an allowable
PLMN is currently not available. The UE will start a GPRS attach as soon as an
allowable PLMN is available.
Registration denied. The UE is in GMM state GMM-NULL. The GPRS service is
disabled, and the UE is not allowed to attach for GPRS if requested by the user.
Unknown
Registered, roaming
GSM
UTRAN
GSM W/EGPRS
UTRAN W/HSDPA
UTRAN W/HSUPA
UTRAN W/HSDPA and HSUPA
E-UTRAN
EC25&EC21 AT Commands Manual
is in GMM state
LTE Module Series
GMM-DEREGISTERED
167 / 231
or