SBC is enhanced to support interaction with Policy and Charging Rule Function (PCRF) in asynchronous mode. A new parameter PCRF Interaction Mode is added to the PCRF object of the Sip Trunk Group. This parameter controls whether interaction with PCRF is synchronous or asynchronous. The default value of this parameter is synchronous.
- In synchronous interaction mode:
- SBC sends INVITE message to egress once it receives the response for the AAR, which is sent towards PCRF.
- In asynchronous interaction mode:
- SBC sends INVITE message to egress after sending an AAR request. SBC continues with call processing without waiting for any response from the PCRF or time-out of the transaction.
- The final AAR is sent after receiving the session answer even though the answer or time-out for the preliminary AAR is not received.
Synchronous PCRF Interaction Mode
Asynchronous PCRF Interaction Mode
For configuration details, refer to:
Overview
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