8.5 Handling of forwarded calls

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

The handling of forwarded calls in the GMSC or the terminating VMSC is specified in 3GPP TS 03.18 [3]. The procedures specific to CAMEL are specified in this subclause.

– Procedure CAMEL_CF_MSC_INIT,

– Procedure CAMEL_CF_MSC_ANSWER

– Procedure CAMEL_CF_ETC,

– Procedure CAMEL_CF_CTR,

– Procedure CAMEL_Check_ORLCF_VMSC.

A mobile terminated call can be forwarded either in the GMSC (indicated by provision of Forwarded-To-Number from HLR or gsmSCF) or in the MSC (indicated by provisioning of Forwarded-To-Number from VLR).