Re: tandberg VC, openmcu, gnugk

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Hi Vineet,

you are getting a truncated terminal capability set (TCS) from the
Tandberg. In your Wireshark trace it is also marked as a malformed
packet.
Thats why GnuGk doesn't forward it to OpenMCU and after a while OpenMCU
disconnects the call.

You should check if a network devioce on the path truncates the packet
or if its sent out this way. If it is, you should probably check for
firmware upgrades from Tandberg.

Also it would be a good idea to switch to the latest GnuGk version from
www.gnugk.org, but it won't fix this problem. Even if GnuGk would
forward the bad TCS, OpenMCU woudn't be able to decode it either.

Regards,
Jan

Vineet Menon wrote:
> hi Jan,
> i am sending u the wireshark trace at the time of initiating call from
> openmcu web UI to tandberg VC.
> and btw im using 2.3.0 version of GnuGk...the latest available from ubuntu
> precompiled repo.
> 
> thx.
> Vineet
> 
> 
> 
> On Tue, Jun 28, 2011 at 2:33 PM, Jan Willamowius <jan@xxxxxxxxxxxxxx> wrote:
> 
> > Hi Vineet,
> >
> > could you please post the GnuGk version you are using and a Wireshark
> > trace of the message GnuGk could not parse ?
> >
> > Thanks,
> > Jan
> >
> > Vineet Menon wrote:
> > > im testing gnugk, openmcu along with a few tandberg vc units for a video
> > > conference call. my config is.... gnugk + openmcu => 10.21.34.2 tandberg
> > vc
> > > =>10.21.34.151..
> > >
> > > When i invite VC for conference for the fist time from openmcu web
> > > interface, it connect for a while and it shows connecting but soon the
> > call
> > > terminates itself.
> > >
> > > A few log messages from gnugk are (at the time of conecting and
> > > disconnecting)...
> > >
> > > 011/06/27 17:59:57.968  3   ProxyChannel.cxx(965)   Q931d   Received:
> > > Alerting CRV=24075 from 10.21.34.151:1720
> > > 2011/06/27 18:00:01.978 3   ProxyChannel.cxx(965)   Q931d   Received:
> > > Connect CRV=24075 from 10.21.34.151:1720
> > > 2011/06/27 18:00:01.978 2         gkacct.cxx(1043)  GKACCT
> > > Successfully logged event 32 for call no. 18
> > > 2011/06/27 18:00:01.978 3   ProxyChannel.cxx(4400)  H245    Set
> > > h245Address to 10.21.34.2:53057
> > > 2011/06/27 18:00:01.981 3   ProxyChannel.cxx(4319)  H245    Connected
> > > from 10.21.34.2:46867 on 10.21.34.2:53057
> > > 2011/06/27 18:00:01.982 3   ProxyChannel.cxx(4351)  H245    Connect to
> > > 10.21.34.151:11011 from 10.21.34.2:0 successful
> > > 2011/06/27 18:00:02.080 3   ProxyChannel.cxx(1163)  H245    ERROR
> > > DECODING H.245 from 10.21.34.2:43717      ------------>>>>>>>>>>>>>>>
> > > 2011/06/27 18:00:11.993 3   ProxyChannel.cxx(965)   Q931s   Received:
> > > ReleaseComplete CRV=24075 from 10.21.34.2:43717
> > > 2011/06/27 18:00:11.993 1         RasTbl.cxx(3534)  CDR|18|06 78 94 d6
> > > 26 9f e0 11 90 3b 00 0c 29 21 33 74|10|Mon, 27 Jun 2011 18:00:01
> > > +0530|Mon, 27 Jun 2011 18:00:11
> > > +0530|10.21.34.2:43717|4125_endp|10.21.34.151:1720
> > |4121_endp|10.21.34.151:1720|OpenH323
> > > MCU v2.2.1:h323_ID|GnuGk;
> > >
> > > Any help can enlighten me...
> > >
> > > I guess the problem is with the decoders... as shown in the line marked
> > with
> > > --------->>>>>>>>
> > >
> > > Thx.
> > >
> > > Vineet
> >
> >
> > --
> > Jan Willamowius, jan@xxxxxxxxxxxxxx, http://www.gnugk.org/
> >


-- 
Jan Willamowius, jan@xxxxxxxxxxxxxx, http://www.gnugk.org/

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