[Serusers] Re: Xten-RTPProxy choppy audio

[Ricardo Villa]

Adrian,

Do you have an Etheral trace trace of such a call (using G711)?  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

----- Original Message ----- 
From: "Adrian Georgescu" <ag at ag-projects.com>
To: "Maxim Sobolev" <sobomax at portaone.com>
Cc: <serusers at lists.iptel.org>
Sent: Wednesday, December 10, 2003 9:15 AM
Subject: [Serusers] Re: Xten-RTPProxy choppy audio


> On Wednesday, Dec 10, 2003, at 14:16 Europe/Amsterdam, Maxim Sobolev
> wrote:
>
> > Probably you need to replace "we have solved" with "we don't observe",
> > because to say that something is "solved" you probably should be able
> > to describe what the solution is.
>
> 20+ of my customers have experienced a problem in the interaction
> between xten soft clients and the rtp media proxy. I have reported this
> to Maxim (3 november),  to xten (6 november) and ser user list  (6
> november).  I have received no answer, hence the effort we put in
> finding a solution ourselves.
>
> Maxim, I have all respect for all you work.  For the sake of this, here
> is my correction:
>
> "We don't observe this with our media proxy"
>
> > Personally I am not convinced that there is actually a real problem
> > with our RTP proxy (my own tests and Jan's information confirms that),
>
> Personally, I am totally convinced that I had a problem and I am am
> perfectly convinced that I solved my problem. I think this is the
> single point of arguing here.
>
> > it could be just equially likely be the problem with your setup (OS
> > you are using, libraries, network etc).
>
> It is not isolated to my setup. Before I have notified Maxim, Xten and
> SER user list,  I have reproduced the problem on different operations
> systems (Windows and MacOSX), different Xten versions, different
> firewalls (NET Gear, D-Link, Alcatel Speetouch and Linux masquerading)
> different IP networks and different sip server software.
>
> > Therefore, I strongly suggest you to stop asserting that your version
> > is better
>
> I wrote "alternative" version with different features. Nothing about
> "better". Your software is better :-)
>
> > in this respect than original one unless you are able to tell where
> > the difference is or to provide instructions on how to reliably
> > reproduce the problem.
>
> To reproduce this I start up Xten and make a call via the proxy.
>
> > Thanks!
>
> Welcome.
>
> >
> > -Maxim
> >
> > Adrian Georgescu wrote:
> >
> >> The problem is that every few seconds there is a gap of half second
> >> in  the audio stream (quality-wise the conversation is unacceptable)
> >> when  using Xten softphone X-lite or X-PRO on either Win or Mac via
> >> RTPProxy.  I can consistently reproduce this problem 100% on various
> >> systems and  so do all my customers.
> >> For the sceptics, there is a movie with the problem presented
> >> (Quicktime is required to play the stream):
> >> http://download.dns-hosting.info/SERMediaProxy/
> >> XtenProblemWithRTPProxy.mov
> >> and an audio extract:
> >> http://download.dns-hosting.info/SERMediaProxy/
> >> XtenProblemWithRTPProxy.wav
> >> This is the problem solved in our media proxy.
> >> Regards,
> >> Adrian
> >> On Wednesday, Dec 10, 2003, at 11:53 Europe/Amsterdam, Jan Janak
> >> wrote:
> >>> I am also wondering what is the problem with xten and rtp proxy,
> >>> because
> >>> I didn't have any problems.
> >>>
> >>>   Jan.
> >>>
> >>> On 10-12 12:29, Maxim Sobolev wrote:
> >>>
> >>>> Sorry for my sloppy English, actually I was asking you to explain
> >>>> the
> >>>> cause of the problem. If you claim that something was "solved" in
> >>>> your
> >>>> version you should probably know how behaviour of your version
> >>>> differs
> >>>> from the behaviour of the original one.
> >>>>
> >>>> -Maxim
> >>>>
> >>>> Adrian Georgescu wrote:
> >>>>
> >>>>> See
> >>>>> http://lists.iptel.org/pipermail/serusers/2003-November/003499.html
> >>>>>
> >>>>> On Wednesday, Dec 10, 2003, at 11:07 Europe/Amsterdam, Maxim
> >>>>> Sobolev  wrote:
> >>>>>
> >>>>>> Adrian Georgescu wrote:
> >>>>>>
> >>>>>>> Hello, we have released an alternative RTPProxy that works with
> >>>>>>> SER
> >>>>>>> nathelper module. Is a completely new program written in Python
> >>>>>>> and
> >>>>>>> should be able to run without recompilation on any system where
> >>>>>>> Python is supported. We have tested Linux Debian  and Solaris 8.
> >>>>>>> There are little differences against PortaOne's rtpproxy, mainly
> >>>>>>>  the
> >>>>>>> problem with Xten choppy audio was solved.
> >>>>>>
> >>>>>>
> >>>>>>
> >>>>>> Interesting. I wonder what was the problem with Xten that you
> >>>>>> solved?
> >>>>>>
> >>>>>> -Maxim
> >>>>>>
> >>>>>>> Features
> >>>>>>> - Compliant with SER nathelper module
> >>>>>>> - Runs without recompilation on SUN Solaris
> >>>>>>> - Xten audio quality is perfect  without gaps
> >>>>>>> - Display active media sessions
> >>>>>>> - Display traffic in minutes and kilobytes
> >>>>>>> - Log to syslog the IP/port numbers and traffic statistics per
> >>>>>>> session
> >>>>>>> - Flexible design for adding new features
> >>>>>>> To do list
> >>>>>>> - Run it on separate machine than SER
> >>>>>>> - Log network traffic per domain
> >>>>>>> - Integrate traffic logging with CDRtool
> >>>>>>> The application is free to download and use without limitations.
> >>>>>>>  You
> >>>>>>> can download it from:
> >>>>>>> http://download.dns-hosting.info/RTPProxy/
> >>>>>>> The application is developed and supported by AG Projects. Any
> >>>>>>> feedback is welcome at support at jobserver.org
> >>>>>>> Regards,
> >>>>>>> Adrian Georgescu
> >
>
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