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1
Enable network registration unsolicited result code +CEREG: <stat>
2
Enable network registration and location information unsolicited result code:
+CEREG: <stat>[,[<tac>],[<ci>],[<AcT>]]
3
Enable network registration, location information and EMM cause value information
unsolicited result code:
+CEREG: <stat>[,[<tac>],[<ci>],[<AcT>][,<cause_type>,<reject_cause>]]
4
For a UE that wants to apply PSM, enable network registration and location
information unsolicited result code:
+CEREG: <stat>[,[<tac>],[<ci>],[<AcT>][,,[,[<Active-Time>],[<Periodic-TAU>]]]]
5
For a UE that wants to apply PSM, enable network registration, location information
and EMM cause value information unsolicited result code:
+CEREG:<stat>[,[<tac>],[<ci>],[<AcT>][,[<cause_type>],[<reject_cause>][,[<Active-
Time>],[<Periodic-TAU>]]]]
<stat>
Integer type, indicates the EPS registration status
0
Not registered, MT is not currently searching an operator to register to
1
Registered, home network
2
Not registered, but MT is currently trying to attach or searching an operator to register
to
3
Registration denied
4
Unknown (e.g. out of E-UTRAN coverage)
5
Registered, roaming
6
Registered for "SMS only", home network (not applicable)
7
Registered for "SMS only", roaming (not applicable)
8
Attached for emergency bearer services only
Registered for "CSFB not preferred", home network (not applicable)
9
10 Registered for "CSFB not preferred", roaming (not applicable)
String type; two bytes tracking area code in hexadecimal format (e.g. "00C3" equals 195 in
<tac>
decimal)
<ci>
String type; four bytes E-UTRAN cell ID in hexadecimal format
<AcT>
Integer type; indicates the access technology of the serving cell
0
GSM (not applicable)
1
GSM Compact (not applicable)
2
UTRAN (not applicable)
3
GSM w/EGPRS (not applicable)
4
UTRAN w/HSDPA (not applicable)
5
UTRAN w/HSUPA (not applicable)
6
UTRAN w/HSDPA and HSUPA (not applicable)
7
E-UTRAN
<cause_type>
Integer type; indicates the type of <reject_cause>.
0
Indicates that <reject_cause> contains an EMM cause value
1
Indicates that <reject_cause> contains a manufacturer-specific cause
<reject_cause> Integer type; contains the cause of the failed registration. The value is of type as
defined by <cause_type>.
<Active-Time> String type; one byte in an 8 bit format. Indicates the Active Time value (T3324)
BC95_AT_Commands_Manual
BC95 AT Commands Manual
Confidential / Released
NB-IoT Module Series
15 / 58
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