Few Bearers Are Rejected Call Flow

This section describes the call flow where PCF rejects the few bearers due to the missing Media-Type AVP.

Few Bearers Are Rejected Call Flow
Few Bearers Are Rejected Call Flow Description

Step

Description

1

The SMF sends a N7 Create request to the PCF.

2

The PCF responds to SMF with success response.

3

The AF sends an AAR-I (Audio and Video) message to the PCF.

4

The PCF performs the Rx Authorization CRD lookup.

5

The Rx Authorization CRD evaluates both the audio and video bearers. The audio bearers that contain the required Media-Type AVP are tagged as accepted. Video bearers with the missing Media-Type AVP are rejected. Bearers evaluated to Bearer-Authorization=ACCEPT are authorized and installed on the SMF.

PCF responds to the accepted audio bearers with AAA (Audio) Result-Code=DIAMETER_SUCCESS (2001).

6

The PCF sends N7 Notify (Audio) to the SMF.

7

The SMF responds to the PCF with a N7 Notify-Resp (Success).

8

Bearers evaluated to Bearer-Authorization=REJECT are marked as unauthorized and are not installed at the SMF.

The PCF sends RAR (Video) Specific-Action=INDICATION_OF_FAILED_RESOURCES_ALLOCATION message to AF.

9

The AF sends RAA (Success) message to PCF.