7.2.33 Calling-Party-Address AVP

32.2993GPPCharging managementDiameter charging applicationsRelease 17Telecommunication managementTS

The Calling-Party-Address AVP (AVP code 831) is of type UTF8String and, for IMS charging, holds the address (SIP URI or Tel URI) which identifies the party (Public User Identity or Public Service Identity) initiating a SIP transaction. It is obtained from the P-Asserted-Identity header of any non-REGISTER SIP Request, either initiating a dialog or a standalone transaction. This AVP may appear several times when the P-Asserted-Identity header contains both a SIP URI and a Tel URI. In case no P-Asserted-Identity is known, this AVP list shall include one item with the value "unknown".

For VCS charging, it holds the address (SIP URI or Tel URI) which identifies the party initiating a voice call. It is converted from the circuit-switched Calling Party Number as per TS 29.163 [234] for the P-Asserted-Identity header.