[asterisk-users] gtalk - no audio

[Joseph Bajin]

If you are behind a firewall, you may need to turn on NAT in order for
the RTP to be able to connect to each other.

If you have wireshark or able to get a TCPDump, make the call that
fails and look at the media anchors.  For me (when I had the exact
same problem), Gtalk came in with a media port of like 5800 or
something in that range. I was only looking at 10000 and above. So of
course, I didn't get bi-directional audio.

Once I changed that rtpstart to 2000, I was able to get things working
again.  Plus I had to turn on NAT support.

On 6/21/07, Koen Van Impe <koenvi at gmail.com> wrote:
> I haven't changed rtp.conf from original installation.
> So the values are:
> rtpstart=10000
> rtpend=20000
>
> I should maybe give it a try with a lower rtpstart.
>
> What do you mean by turning on NAT?
> Are you referring to parameter "bindaddr" in gtalk.conf? (found that on
> http://www.voip-info.org/wiki/view/Asterisk+Google+Talk)
>
> Thanks already!
>
>
> On 6/21/07, Joseph Bajin <josephbajin at gmail.com> wrote:
> >
> > what does your RTP settings look like? I had problems with this at
> > first. One thing I made sure of was that NAT was turned on and that
> > the rtpstart in the rtp.conf file was set to 2000 and the rtpend was
> > up to 20000 (but you can make that much higher).
> >
> > Gtalk seems to have a very low RTP port that it uses for media.
> >
> > On 6/21/07, Philippe Sultan < philippe.sultan at gmail.com> wrote:
> > > Hi Koen
> > >
> > > > This works fine when I call this account from my personal gtalk. But
> others
> > > > have some very strange problems.
> > > > In most cases, I see the call coming into Asterisk and executing
> normally.
> > > > On the callers side, the call looks like it was answered, but there's
> no
> > > > audio.
> > > > In some other cases, the call doesn't even appear to be answered,
> although I
> > > > see a normal execution on Asterisk.
> > >
> > > Can you please open a bug report that describes your problem, and
> > > attach an Asterisk debug output for a failed call to the report?
> > >
> > > Thanks,
> > >
> > > Philippe
> > >
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