G.2 Cause related to subscription options

24.0083GPPCore network protocolsMobile radio interface Layer 3 specificationRelease 18Stage 3TS

Cause value = 11 PLMN not allowed

This cause is sent to the MS if it requests service, or if the network initiates a detach request, in a PLMN where the MS, by subscription or due to operator determined barring is not allowed to operate.

Cause value = 12 Location Area not allowed

This cause is sent to the MS if it requests service, or if the network initiates a detach request, in a location area where the HPLMN determines that the MS, by subscription, is not allowed to operate.

NOTE 1: If cause #12 is sent to a roaming subscriber the subscriber is denied service even if other PLMNs are available on which registration was possible.

Cause value = 13 Roaming not allowed in this location area

This cause is sent to an MS which requests service, or if the network initiates a detach request, in a location area of a PLMN which by subscription offers roaming to that MS but not in that location area.

Cause value = 15 No Suitable Cells In Location Area

This cause is sent to the MS if it requests service, or if the network initiates a detach request, in a location area where the MS, by subscription, is not allowed to operate, but when it should find another allowed location area or tracking area in the same PLMN or an equivalent PLMN.

NOTE 2: Cause #15 and cause #12 differ in the fact that cause #12 does not trigger the MS to search for another allowed location area on the same PLMN.

Cause value = 25 Not authorized for this CSG

This cause is sent to the MS if it requests access, or if the network initiates a detach request, in a CSG cell where the MS either has no subscription to operate or the MS’s subscription has expired and it should find another cell in the same PLMN or an equivalent PLMN.

NOTE 3: The MS not supporting CSG will not receive cause# 25, as such a MS is not supposed to try to access a CSG cell.