what should be the standard message when ever MS tries to Location update on competitors network.
# 11: PLMN not allowed;
# 12: Location Area not allowed; or
# 13: Roaming not allowed in this location area.
Hello, Friends!
Thank you, Pix 🙂
Dear, HuNi! There are some types of subscription restriction:
1) on basis of VPLMN restriction in the Home PLMN (HLR) (# 11: PLMN not allowed);
2) on basis of regional subscription restriction (RS zone numbers are administered in VPLMN and restricted in HPLMN) (# 12: Location Area not allowed);
3)National roaming restrictions in VPLMN only. It is possible total (global) national PLMN restriction or partial (local) – on per LA basis (# 13: Roaming not allowed in this location area and probably # 11: PLMN not allowed when restriction is global).
So, when your subscriber receives #12 it is most likely matches to the ‘2)’ case (in standard case). Further, MS stores the forbidden LAI in a list of “forbidden LA” and enters the limited service state (only emergency calls allowed) until it moves to another LA which is not forbidden. List of “forbidden LA” is cleared after switch off/on manipulations.
What is the cause code number when the error code is UDV (unexpected data value). How the handset behave with this error code and which doc to follow the details of this error code.
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