Session Initiation Answer Message Processing

Credit-Control-Answer (CCA) messages with CC-Request-Type AVP set to INITIAL_REQUEST (1) received from online charging servers (OCSs) are routed without any modifications to the online charging client (CTF) that initiated the Diameter transaction

If a CCA-I is received with a successful Result-Code AVP (for example, 2xxx), OC-DRA verifies that the Origin-Host of the answering OCS is configured as an OCS at the local site (Policy and Charging, and then Online Charging DRA, and then Configuration, and then OCSs). If the OCS is not configured at the local site, OC-DRA asserts timed Alarm 22730 Policy and Charging Configuration Error (Refer to the DSR Alarms and KPIs Reference for further details). If the answering OCS is configured at the local site and session state needs to be maintained as based on session state configuration and message content, OC-DRA stores the session information in the Session SBR by sending a createOcSessions tack event to the Session SBR.