[SR-Users] question regarding rtpengine and ICE candidate selection

[Richard Fuchs]

On 04/12/2020 14.04, Andrew Chen wrote:
> Sure...I understand ICE has its own setup workflow than SIP but it's 
> also important that rtpengine uses the rtp path that's negotiated in 
> the SIP or else it can cause confusion (to those who don't understand 
> ICE very well like me).

There is no RTP path negotiated through SIP. There is only a number of 
possible paths, which are compiled from the list of candidates that each 
side advertises. ICE then checks which paths work, and then finally 
chooses the one with the highest priority.

The only way to have a single media path that is negotiated through SIP 
is if you don't use ICE.

Cheers