10.2.3 Notify Subscriber Data Change

23.0783GPPCustomised Applications for Mobile network Enhanced Logic (CAMEL) Phase 4Release 17Stage 2TS

Changes of CSI, Call Forwarding data, Call Barring data, Call Waiting data, Call Hold data, Explicit Call transfer data, Calling line Identification Presentation data, Calling line Identification Restriction data or ODB data shall be notified only if the corresponding data is marked with the Notification-to-CSE flag.

The HLR maintains a list of gsmSCF address(es) for Call Forwarding Data, Call Barring Data, ODB, Call Waiting data, Call Hold data, Explicit Call transfer data, Calling line Identification Presentation data, Calling line Identification Restriction data and CSI. When any of these items has been modified, a notification shall be sent to each gsmSCF in the corresponding list.

The sending of a notification to the gsmSCF may be triggered by the following processes:

– subscriber data change by administrative procedure;

– subscriber data changed by subscriber;

– subscriber data changed by Any Time Modification request from gsmSCF;

– subscriber data changed due to a change of other subscriber data;

– subscriber data change due to Location Update.

When a change of subscriber data is requested by Any Time Modification, Any Time Modification acknowlegement is returned to the requesting gsmSCF confirming the status of the altered data. Separate Notifications of subscriber data change shall also be returned to the requesting gsmSCF for each other piece of altered data, but these shall not contain the requested change.

Each gsmSCF shall be notified only once. Multiple occurrence of gsmSCF Address in these lists shall not lead to multiple notification.

Handling of Notify Subscriber Data Change involves the following procedure:

– CAMEL_NSDC_HLR.

If a change of subscriber data needs to be notified to the gsmSCF, then the HLR initiates a transaction to the gsmSCF by sending Notify Subscriber Data Change information flow.

Figure 10.9-1: Procedure CAMEL_NSDC_HLR (sheet 1)