I want to know if i hav the Lack of MSRn or the Subscriber out of coverage ,is it normal to recive the same announcement for both of the case?does Cause value for both of this two case is same?
If you have SRI fail, firstly you need to check your SCCP routing table. SRI goes on NP=1, NA=4, NS=XXXXX, thise number series must to be routed to HLR.
1)Lack of MSRn (in VLR) —PRN_err with Cause=No Roaming Number Available—>HLR—SRI_err with Cause(most probably)=System Failure—>GMSC—appropriated announcement or ISUP_Release with Cause=111-Protocol error, unspecified—>outgoing_MSC—> appropriated announcement
2)Subscriber out of coverage (Paging Fail in VMSC)—appropriated announcement or ISUP_Release with Cause=20-Subscriber absent—>GMSC—>outgoing_MSC—>appropriated announcement
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