User Manual

Table Of Contents
SARA-R4 series-AT commands manual
UBX-17003787 - R16
7Network service
Page 49 of 401
7.6.3Defined values
Parameter Type Description
<1stAcT> Number Indicates the single or highest priority RAT enabled and may be:
3: LTE
7: LTE Cat M1
8: LTE Cat NB1
9: GPRS / eGPRS
Allowed values depend on the module series:
SARA-R410M-63B / SARA-R410M-73B - 7 (factory-programmed value)
SARA-R410M-02B / SARA-R410M-52B / SARA-R410M-83B - 7 (factory-
programmed value), 8
SARA-R412M - 7 (factory-programmed value), 8, 9
SARA-R404M / SARA-R410M-01B - 3 (factory-programmed value)
SARA-N4 - 8 (factory-programmed value)
<2ndAcT> Number Indicates the second priority RAT enabled and has the same range as <1stAcT>. The
default and factory-programmed value is:
SARA-R410M-02B / SARA-R410M-52B / SARA-R410M-83B / SARA-R412M - 8 (LTE
Cat NB1)
SARA-R404M / SARA-R410M-01B / SARA-R410M-63B / SARA-R410M-73B /
SARA-N4 - The parameter is not supported.
<3rdAct> Number Indicates the third priority RAT enabled and has the same range as <1stAcT>.The
default and factory-programmed value is:
SARA-R412M - 9 (GPRS / eGPRS)
SARA-R404M / SARA-R410M / SARA-N4 - The parameter is not supported.
7.6.4Notes
AT&T's EF
RAT
mode contains the RAT mode setting, that is the mode that the module shall be set to.
Thus this setting may override +URAT's parameters loaded at boot time.
SARA-R4
<1stAcT>, <2ndAcT>, <3rdAct>=9 does not support any of the GSM circuit switched services such as
voice, fax, CSD, etc.
7.7Network registration status +CREG
+CREG
SARA-R410M-02B SARA-R410M-52B SARA-R410M-63B SARA-R410M-73B SARA-R410M-83B
SARA-R412M
Modules
SARA-N4
Syntax PIN required Settings saved Can be aborted Response time Error referenceAttributes
partial Yes No No - +CME Error
7.7.1Description
Configures the network registration URC related to CS domain. Depending on the <n> parameter value, a URC
can be issued:
+CREG: <stat> if <n>=1 and there is a change in the MT's circuit switched mode network registration status
in GERAN/UTRAN/E-UTRAN.
+CREG: <stat>[,<lac>,<ci>[,<AcTStatus>]] if <n>=2 and there is a change of the network cell in GERAN/
UTRAN/E-UTRAN.
+CREG: <stat>,[<lac>],[<ci>],[<AcTStatus>][,<cause_type>,<reject_cause>] if <n>=3 and the MT
registration status (<stat>) changes. The <cause_type> and the <reject_cause> parameters are returned
only if the MT is not registered, but it is currently searching a new operator to register to (<stat>=2) or if
the registration is denied (<stat>=3).
The parameters <AcTStatus>, <lac>, <ci> are provided only if available.
The read command provides the same information issued by the URC together with the current value of the
<n> parameter. The location information elements <lac>, <ci> and <AcTStatus>, if available, are returned
only when <n>=2 or <n>=3 and the MT is registered with the network. The <cause_type>, <reject_cause>