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Hi,<br>
<br>
I am experimenting with WebRTC and am failing quite dismally -
mainly due to lack of documentation.<br>
<br>
I realise this is an emerging technology and the standards are
moving, but presumably it does work in some scenarios and it would
be great if a working setup could be documented.<br>
<br>
Anyway, I think I might have found a bug, but have no way to tell
because I've never been able to get WebRTC working with Freeswitch.<br>
<br>
Here's my setup so far:<br>
<br>
<ul>
<li>FreeSWITCH Version
1.5.14b+git~20140725T212415Z~c411f8c7a9~32bit (git c411f8c
2014-07-25 21:24:15Z 32bit)</li>
<li>IPv6 addresses - due to shortage of global IPv4 address, I am
forced to use IPv6</li>
<li>SIPJS - <a class="moz-txt-link-freetext" href="http://sipjs.com/">http://sipjs.com/</a></li>
<li>Firefox 31/Fedora 20</li>
<li>Apache 2.4.9/Mod_SSL</li>
<li>Startcom SSL cert (which I have configured with Apache fine)<br>
</li>
</ul>
<br>
What I am able to do:<br>
<br>
If I setup the internal IPv4 profile with ws-binding, I can use
SIPJS to register and can successfully see a user registered in
Freeswitch from the browser.<br>
<br>
I can then use SIPJS to make a call, and my desk phone rings,
however I get no media (UDP packets are being sent but presumably
neither side can decode it).<br>
<br>
I also see these errors in the fs_cli debug output though:<br>
<b><br>
</b><b>2014-07-27 13:04:12.108836 [ERR] switch_core_cert.c:210 FP
FILE ERR!</b><b><br>
</b><b>2014-07-27 13:04:12.108836 [ERR] switch_core_cert.c:210 FP
FILE ERR!</b><b><br>
</b><b>2014-07-27 13:04:12.148104 [ERR] switch_rtp.c:2975 audio DTLS
cert err [5]</b><br>
<br>
But I can find no proper documentation on what is required for DTLS
or where to put the cert files.<br>
<br>
Next up I tried IPv6 in the internal-ipv6 profile:<br>
<br>
<param name="tls-cert-dir" value="/etc/freeswitch/certs"/><br>
<param name="wss-binding" value=":7443"/><br>
<br>
I concatenated the cert, key and chain certs together into
/etc/freeswitch/certs/wss.pem and can successfully connect using WSS
and SIPJS.<br>
<br>
The problem however is that although I can see a register,
Freeswitch then kills the registration connection a couple of
seconds later.<br>
<br>
It is also showing the registration as using WSS-NAT, how can that
be possible on IPv6? <br>
<br>
How can I turn off NAT detection on the IPv6 profile?<br>
<br>
Any guidance would be very much appreciated and I will post my setup
to my blog and the Freeswitch wiki if I can get it working, to help
people in the future.<br>
<br>
Thanks<br>
Tom<br>
<br>
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