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Sanav GS-819 User Manual page 111

Gps/gsm/gprs vehicle tracker

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8.12.2
Service states
Depending on the service state, an additional textual output is generated (refer also to the response
examples):
'SEARCH' (Searching) - The MS is searching, but could not (yet) find a suitable cell. This output
appears after restart of the MS or after loss of coverage.
'NOCONN' (No connection) - The MS is camping on a cell and registered to the network. The
service state is 'idle', i.e. there is no connection established or a dedicated channel in use.
'LIMSRV' (Limited Service) - The MS is camping on a cell but not registered to the network.
Only emergency calls are allowed. The MS enters this state, for example, when - no SIM card is
inserted, or PIN has not been given,
neither Home PLMN nor any other allowed PLMN are found,
-
registration request was not answered or denied by the network (use command
-
query the registration status),
111
authentication failed.
to
AT+CREG
! "
"
# $

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