ZA.9 Procedures at the AS at the originating network

24.4033GPPIP Multimedia Call Control Protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP) Stage 3 [3GPP TS 24.229 (Release 7), modified]Release 7TISPANTS

The AS may populate the cpc parameter in each initial request for a dialog or a request for a standalone transaction in the tel URI or SIP URI of the P-Asserted-Identity based on their origin source.