B.4.10 Outgoing call handled by CAMEL

12.053GPPSubscriber Related Call and Event DataTS

Figure B.10 illustrates an outgoing CAMEL call from a mobile CAMEL subscriber "A" to a fixed network subscriber "B" (1).

The "A" subscriber has an active O-CSI (stored in the VLR). Therefore MSC-A requests instructions from the gsmSSF which passes the CAMEL service key to the gsmSCF to indicate which service logic it should apply (2).

The gsmSCF may interrogate the HLR for subscriber information. As a network option, the operator may refuse to provide the requested information.

When gsmSCF processing is complete the call control is returned to MSC-A.

MSC-A generates an MOC record for the "A" subscriber. This record may be linked to an optional SCF-record. The record includes O-CSI data.

The GMSC routes the call to the "B" subscriber (3). The GMSC shall create an outgoing gateway record as described in subclause B.4.1.

The generated records are subsequently transferred to the OS (A) either as event reports following the release of the connection or when collected by the OS.

The following records are generated in HPLMN in this call scenario:

GMSC

MSC

HLR

Outgoing gateway record

MOC record

Figure B.10: Outgoing call handled by CAMEL