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.

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. |