In the RTP Overview table every row is one single voice stream identified by the Synchronization source (SSRC) :
For every SSRC a link to the corresponding SIP call is given and a link to the RTP stream. A SIP call has in each direction one or multiple SSRC's.
Following the SSRC link (indicated above in the red box) brings up a separate table with the details of the specific RTP stream :
An error in the RTP voice flow can be easily detected via the Minimal or Last Mean Opinion Score (MOS) having a low value :
Selecting the SSRC link directly displays the specific problem :