RE: [Serusers] Re: Xten-RTPProxy choppy audio - sr-users

10 Dec 2003

X-lite Private build: 1088 (the non fwd-version)

klaus

...
  -----Original Message-----
 From: Maxim Sobolev [mailto:sobomax@portaone.com] 
 Sent: Wednesday, December 10, 2003 5:13 PM
 To: Klaus Darilion
 Cc: Jan Janak; Adrian Georgescu; serusers(a)lists.iptel.org; Ricardo Villa
 Subject: Re: [Serusers] Re: Xten-RTPProxy choppy audio

 Thanks, Klaus! Please keep us informed about your findings. 
 BTW, which 
 exactly version of x-lite are you using?

 -Maxim

 Klaus Darilion wrote:

  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(a)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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