User Manual

Table Of Contents
SARA-R4 series-AT commands manual
UBX-17003787 - R16
7Network service
Page 51 of 401
Parameter Type Description
<AcTStatus> Number Indicates the radio access technology:
0: GSM
1: GSM COMPACT
2: UTRAN
3: GSM/GPRS with EDGE availability
4: UTRAN with HSDPA availability
5: UTRAN with HSUPA availability
6: UTRAN with HSDPA and HSUPA availability
7: E-UTRAN
8: EC-GSM-IoT (A/Gb mode)
9: E-UTRAN (NB-S1 mode)
255: the current <AcTStatus> value is invalid
Allowed values:
SARA-R404M / SARA-R410M-63B / SARA-R410M-73B - 7
SARA-R412M - 0, 3, 7, 8, 9
SARA-R410M-02B / SARA-R410M-52B / SARA-R410M-83B - 7, 9
SARA-R410M-01B - 8, 9
SARA-N4 - 9
<cause_type> Number <reject_cause> type. Allowed values:
0: indicates that <reject_cause> contains an EMM cause value, see 3GPP TS 24.30
1 [68] Annex A
<reject_cause> Number Cause of the failed registration. The value is of type as defined by <cause_type>
7.7.4Notes
The following is an overview of the values assumed by the <stat> parameter:
0: a technical problem could have occurred, the user is requested to intervene. It is still possible to make
emergency calls if some network is available. Possible causes:
o PIN not entered
o Invalid HPLMN found on the SIM (SIM read error)
o SIM card not present
The registration is not started
1: the MT is registered for circuit-switched services on the HPLMN (or on one of the equivalent HPLMN's,
whose list is provided by the SIM)
2: the module is searching a network to register on. Possible causes:
o No network available
o Available networks have insufficient Rx level
o HPLMN or allowed PLMN are available but the registration is rejected, e.g. roaming is not allowed
in this Location Area
It is still possible to make emergency calls if network coverage is available
3: the CS registration failed after a Location Update Reject; possible causes are:
o Illegal MS
o Illegal ME
o IMSI unknown at HLR
o PLMN not allowed
o Location area not allowed
o Roaming not allowed in this location area
o Network failure
o Network congestion
It is still possible to make emergency calls if network coverage is available.
If the registration type is manual, then no further attempt is made to search for a new PLMN or register
with it. If the registration type is automatic, the MS may look for an allowed PLMN if the rejection cause
was roaming restriction. In case of illegal MS /ME, there could be possible problems with either the SIM
card or with the ME's identity (IMEI): user intervention may be required
4: this value, usually transitory, is returned if the registration state does not belong to any of the following: