8.4 Handling of mobile terminating calls

03.783GPPCcustomized Applications for Mobile network Enhanced Logic (CAMEL) Phase 2Release 1998Stage 2TS

8.4.1 Handling of mobile terminating calls in the terminating VMSC

The functional behaviour of the terminating VMSC is specified in 3GPP TS 03.18 [3]. The only behaviour specific to CAMEL is:

– the inclusion of the O-CSI parameter in the Perform Call Forwarding message sent to the process MT_CF_MSC if it was received in the Send Info For Incoming Call ack;

– the requirement to suppress the connection of announcements or tones if the VLR includes the suppression of announcements parameter in the Send Info For Incoming Call negative response.

8.4.2 Handling of mobile terminating calls in the VLR

The functional behaviour of the terminating VLR is specified in 3GPP TS 03.18 [3]. The only behaviour specific to CAMEL is:

– the inclusion of the O-CSI parameter in the Send Info For Incoming Call ack if the call is to be forwarded and O-CSI is included in the subscriber data for that subscriber in the VLR;

– the inclusion of the suppression of announcements parameter in the Send Info For Incoming Call negative response if it was received in the Provide Roaming Number.