[Freeswitch-users] How can we make Freeswitch work with a verto client running on Edge?

[Alexey Sibyakin]

Hello,

Please do not repost your questions. Try to use Chrome or wait while Edge
will become Chrome too as Anthony suggested.

Regards,

Alex

On Thu, Jan 3, 2019 at 6:10 AM Alejandro Castera <Alejandro.Castera at on24.com>
wrote:

> Hello all,
>
> We can use the verto communicator client to join a conference handled by
> our own Freeswitch server.
> It works on Chrome, Firefox and Opera, on which we can connect ok and get
> audio+video.
> But it does NOT work on Edge.
>
> The candidates Edge provides are the following:
>
> candidate:1 1 UDP 2130706431 192.168.0.7 63832 typ host
> candidate:2 1 TCP 1684798975 192.168.0.7 63832 typ srflx raddr 192.168.0.7
> rport 63832 tcptype active
>
> So for for every local IP, Edge generates 2 candidates: 1 host candidate,
> and 1 srflx candidate.
> The srvflx candidate is built wrong on purpose (transport address ==
> related address).
> I guess they do that so that when the ICE connection checks take place,
> the server side can "learn" a new prflx candidate (see RFC5245, section
> 7.2.1.3)
>
> I have tested the same scenario using a server which makes use of the
> libnice library for the ICE implementation, and it works!!!
> No TURN server is being used, no STUN server is being used, the candidates
> Edge sends are the 2 above (which do not contain a public IP) and still the
> server generates a prflx candidate and the connection is established
> perfectly.
>
> But when using our Freeswitch server (which does not make use of the
> libnice library for ICE) the connection does not work.
> Then again, the funny thing is that if we use the cantina.freeswitch.org
> Freeswitch server, then it DOES work!
> So there must be something in the code/configuration that could be done so
> that the Freeswitch server can "learn" a prflx candidate from those Edge is
> sending out.
>
> Could anyone help us?
> Alex
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-- 
Alex Sibyakin | Support Engineer
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