[Spce-user] Sipml5 + sip:provider ce + jitsi not working

[Andrew Pogrebennyk]

David,

it seems an ACK from the caller (sipml5) doesn't reach jitsi, so you
should trace where it gets lost and for this a SIP capture is a must.
What interests me most, is the Route set from sipml5. I've seen some
reports here and on sr-users mailing list where the sipml5 client would
insert an extra Route into ACK message, which is not allowed by RFC btw.
Probably a nasty client configuration issue that causes some request
spiraling. Check that the Route set of ACK message from sipml5 contains
the same set of URIs as Record-Route set in received in 200 OK, just in
reverse order.
If unsure, attach the SIP trace, kamailio-lb.log and kamailio-proxy.log
and send email to the list so we can figure it out.

BR,
Andrew

On 11/04/14 08:56, David Strejc wrote:
> Dear all,
> 
> does anyone have working connection between sipml5 and jitsi - since
> jitsi is not supporting ICE and sipml5 have mandatory ICE I've setuped
> sip:provider ce user preferences due this info I've received:
> 
> -----------------
> So on the web interface, go to your subscriber used for Jitsi, click the
> preferences button, and in the nat and media flow control section, set
> use_rtpproxy to force with plain sdp, set the rtcp_feedback to force
> AVP, and set the srtp option to force RTP.
> 
> For the subscriber you're using with sipml5, you do the opposite: set
> use_rtpproxy to force with ice as only candidate, rtcp_feedback to
> prefer AVPF, and srtp to prefer SRTP.
> 
> That should tell the system to properly transcode between plain sip
> (RTP/AVP) and webrtc (RTP/SAVPF) profiles.
> ------------------
> 
> Now sipml5 doesn't complain in javascript console about ICE and SDP but
> still when I call to jitsi client the sipml5 client says call connected
> but jitsi says - connecting.
> 
> I know that this could be tricky and I think I can provide more info
> about this particular problem, but I need help with where I should look
> at now.
> 
> Many thanks to all for any suggestion.
> 
> 
> 
> David Strejc
> t: +420734270131
> e: david.strejc at gmail.com <mailto:david.strejc at gmail.com>