I have installed kamaillio 5.6 on debian 11, bullseye with RTP engine latest
version 11.x. Using webrtc client as jssip to connect with kamailio and route
the calls to asterisk server from kamailio.
in Local network everything working fine
When I connect JSSIP webrtc client from public internet I am getting no voice
for both ends. I have observed that the rtp is flowing from the remote end to
the client while IVR is playing from callee end. But the rtp doesnt know where
to route to reach the webrtc client.
For normal UDP call everyting works fine from local and public internet. The
issue is only for ws and wss calls
observations :
ICE options : trickle ICE
ICE candidates with sdp is there when calling from local network
ICE candidates are not with sdp when calling from publi internet. C IN and RTCP
= 0..0.0.0:9
found RTP is routing to ------- > 0.0.0.0:9 and not reaching anywhere
RTPengine interface is local ip and public ip is advertised, in kmailio also
public ip is advertised
sip dumb has been investgated and found everything is observed as normal with
only one difference, that is no ice candidates for wss client from public
internet
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