PS: nevertheless build 1095 (as 1088) is IMO buggy as it doesn't
register to my default proxy, but to all other configured proxies. Any
solutions?

> -----Original Message-----
> From: Maxim Sobolev [mailto:sobomax@portaone.com]
> Sent: Wednesday, December 10, 2003 5:56 PM
> To: Ricardo Villa
> Cc: Klaus Darilion; Jan Janak; Adrian Georgescu; serusers@lists.iptel.org
> Subject: Re: [Serusers] Re: Xten-RTPProxy choppy audio
>
>
> Ok, I see, probably it tries to send a RTCP packet, which is OK by
> itself, but handles resulting ICMP in a strange way. I'll extend RTP
> proxy to make it relaying RTCP traffic as well (I am having
> it on a TODO
> list for a quite some time now), which should fix this problem.
>
> Thank you for the debugging!
>
> In the meantime, disabling RTCP in X-Ten should solve the problem.
>
> -Maxim
>
> Ricardo Villa wrote:
>
> > I can confirm this too. Just tried it in our lab with the
> exact same
> > results as Klaus. (Instead of Budgetone I used ATA186).
> >
> > X-Lite build 1084
> >
> > 1. ATA186 Calls Xten.
> > 2. Xten hears choppy audio every 5 seconds or so.
> > 3. RTP Stream from ATA to Xten is perfect and conserves
> the same SSRC
> > 4. RTP Stream from Xten to ATA switches to a new SSRC
> every few seconds.
> >
> > It is clear to me that there is a bug in Xten software. Before Xten
> > switches to a new SSRC it attempts to send an RTP packet to
> the wrong RTP
> > Port (it tries to the actual port +1). SER server sends
> back "ICMP Port
> > Unreacheable (Obviously)" and Xten restarts RTP Stream on a
> new SSRC.
> >
> > I did not see any problem with Maxims RTPProxy.
> >
> > Regards,
> > Ricardo
> >
> > ----- Original Message -----
> > From: "Klaus Darilion"
> > To: "Jan Janak" ; "Adrian Georgescu"
> >
> > Cc: ; "Ricardo Villa"
> > Sent: Wednesday, December 10, 2003 11:07 AM
> > Subject: RE: [Serusers] Re: Xten-RTPProxy choppy audio
> >
> >
> > I can reproduce the choppy audio
> > setup:
> > budgetone-100 <----> ser+rtpproxy(version from today) on
> redhat 9 (or 8,
> > not sure) <------>x-lite build 1088 on win xp
> >
> > the choppy sound occours every 5 seconds, in both directions.
> > RTP-analysis:
> > RTP stream from budgetone to x-lite (via rtpproxy) is fine
> (no jitter,
> > no loss)
> > RTP stream from x-lite to budgetone (via rtpproxy): very
> strange: x-lite
> > switches to a new SSRC (and seq-nr. start at 0 again) every
> 5 seconds.
> >
> > so, in my opinion: rtpproxy works fine, x-lite is guilty.
> but why does
> > this happen only if the rtp proxy is involved? ...further
> investigations
> > are planned...
> >
> > Klaus
> >
> >
> >>-----Original Message-----
> >>From: Jan Janak [mailto:janak@fokus.fraunhofer.de]
> >>Sent: Wednesday, December 10, 2003 4:09 PM
> >>To: Adrian Georgescu
> >>Cc: serusers@lists.iptel.org; Ricardo Villa
> >>Subject: Re: [Serusers] Re: Xten-RTPProxy choppy audio
> >>
> >>
> >>Well, we can generate the traces locally, but I haven't
> encounter the
> >>problem you describe so it makes no sense.
> >>
> >>You wrote you are able to reproduce the problem, in that
> case I would
> >>like to ask you to generate the traces that show the problem
> >>so we could
> >>analyze and fix it.
> >>
> >>Also please tell us on what OS does this happen ? (I mean the
> >>OS the proxy
> >>is running on).
> >>
> >>Another question, what is the license of your RTP proxy ? I
> >>didn't find
> >>any licensing info in the sources. Will the sources be available ?
> >>
> >> Jan.
> >>
> >>On 10-12 16:04, Adrian Georgescu wrote:
> >>
> >>>On Wednesday, Dec 10, 2003, at 15:48 Europe/Amsterdam,
> >>
> >>Ricardo Villa
> >>
> >>>wrote:
> >>>
> >>>
> >>>>Adrian,
> >>>>
> >>>>Do you have an Etheral trace trace of such a call (using G711)?
> >>>
> >>>I guess ethereal traces can be generated with ethereal program and
> >>>decoded locally on your servers if you want to isolate this.
> >>>
> >>>
> >>>>I can
> >>>>decode it and produce an audio file for all to examine.
> >>
> >>This way we
> >>
> >>>>can get
> >>>>to the bottom of this.
> >>>>Thanks,
> >>>>Ricardo
> >>>
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> >>
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> >>
> >>
> >
> >
> >
> >
> >
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> >
> >
> >
>
>
>

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