[Serusers] Xlite register problem (WAS Xten-RTPProxy choppy audio)

Wed Dec 10 20:33:39 CET 2003

Hi,

We are also having a problem with X-Pro and X-lite build 1088 when registering to a SIP proxy based on libosip. The X-Pro is not using the double-quotes on the nonce value of the Authorization header, which is causing an error on our proxy when parsing of this header (Libosip requires the double quotes).
I have sent this question to the Xten support forum but they said that the double quotes are not mandatory, though libosip requires them.

Any thoughts on what is the correct behaviour of the double-quotes on the authorization header?

Thanks,
Chuck

########
REGISTER sip:sip.myproxy.com SIP/2.0.. 
Via: SIP/2.0/UDP 
10.0.0.118:5060;rport;branch=z9hG4bK68B8733FC802462491336DC291698245.. 
From: 55519 <sip:55519 at sip.myproxy.com>.. 
To: 55519 <sip:55519 at sip.trd c.telenova.com.br>.. 
Contact: "55519" <sip:55519 at 10.0.0.118:5060>.. 
Call-ID: C6A03D06E92E4797964B8B66D428E345 at sip.myproxy.com.. 
CSeq: 50473 REGISTER..Expires: 1800.. 
Authorization: Digest 
username="55519",realm="sip.myproxy.com",nonce=3fc651184ade4892f2e774000507b 
8b0a1db524e,response="19a55431e3ee1d5978c777373a822a40",uri="sip:sip.myproxy 
.com".. 
Max-Forwards: 70.. 
User-Agent: X-PRO build 1088.. 
Content-Length: 0....

Klaus Darilion <darilion at ict.tuwien.ac.at> wrote:

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 at portaone.com] 
> Sent: Wednesday, December 10, 2003 5:56 PM
> To: Ricardo Villa
> Cc: Klaus Darilion; Jan Janak; Adrian Georgescu; serusers at 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 at fokus.fraunhofer.de]
> >>Sent: Wednesday, December 10, 2003 4:09 PM
> >>To: Adrian Georgescu
> >>Cc: serusers at 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
> >>>
> >>>_______________________________________________
> >>>Serusers mailing list
> >>>serusers at lists.iptel.org
> >>>http://lists.iptel.org/mailman/listinfo/serusers
> >>
> >>_______________________________________________
> >>Serusers mailing list
> >>serusers at lists.iptel.org
> >>http://lists.iptel.org/mailman/listinfo/serusers
> >>
> >>
> > 
> > 
> > 
> > 
> > 
> > _______________________________________________
> > Serusers mailing list
> > serusers at lists.iptel.org
> > http://lists.iptel.org/mailman/listinfo/serusers
> > 
> > 
> > 
> 
> 
> 

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