Sorry, the 200OK was tcp ACK-ed but not SIP-ACK-ed by Bria.
I will have to dig deeper (the C40 also does not work with a Tandberg
MXP3000).
Paul
----- Forwarded by Paul Scheepens/EPO on 12-05-2011 14:21 -----
sipx-users-boun...@list.sipfoundry.org wrote on 12-05-2011 14:11:38:
> Hi Staffan,
>
> My C40 is not behind NAT, still does not work.
> The 200OK is simply not ACK-ed.
> The 200OK makes it to the other side (Bria) and is ACK-ed so Bria is
> sending audio and video.
> The C40 shows it's accepting Audio and Video in its STATUS screen,
> but it's not sending anything (because the ACK is not received).
> After 45 seconds the Tandberg drops the call (the Bye that was
> 481'ed), this Bye never reaches Bria, who stays in a call.
>
> This could be a new problem then?
>
> Paul
>
>
> From:
>
> Staffan Kerker <ietf-li...@kerker.se>
>
> To:
>
> Discussion list for users of sipXecs software
<sipx-users@list.sipfoundry.org>
>
> Date:
>
> 12-05-2011 13:56
>
> Subject:
>
> Re: [sipx-users] Tandberg GRUU problem
>
> Sent by:
>
> sipx-users-boun...@list.sipfoundry.org
>
>
>
>
>
> Hi,
>
> My work-around is to make sure that the Tandberg endpoint is on a
> non-NAT:ed access. Without NAT
> at least in my basic scenarios the Tandberg E20 seems to work.
>
> I tried getting Tandberg to include an option to disable GRUU, but
> haven't seen it yet.
>
> //Staffan
>
>
>
>
> On 12 maj 2011, at 13.51, pscheep...@epo.org wrote:
>
> I've got a Tandberg C40 codec and as it seems I have issues with GRUU.
> I don't use NAT or anything.
>
> I think http://track.sipfoundry.org/browse/XX-8834 will fully fix
> the GRUU problem.
> In the mean time it would be nice if we could get this beast to
workproperly.
>
> Does anybody (Staffan..) know a trick to make it work.
> Is there an emergency patch for 4.2.1/4.4?
>
> Attached the SIP part of the conversation (i left out most of the
> RTP traffic).
> The 200OK (frames 8, 13, 18 etc) is not ACK-ed, the C40 keeps trying.
> In the end (frame 45) the C40 sends a Bye which is answered with a
> "481 Call/transaction does not exist".
>
> Paul
>
>
>
> <SIPpart.pcap>_______________________________________________
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>
> --
> Staffan Kerker
> mail/sip/xmpp: staf...@kerker.se
>
> "Don't get involved in politics man, just play the gig..." /Sgt
> Floyd, Electric Mayhem Band
>
>
>
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