[cisco-voip] ccm4.2 video over intercluster trunk issues !!!

[Ryan Ratliff]

When a call is dropped as soon as it goes to a connected state this  
usually indicates a codec mismatch, or some other media establishment  
error.

The fact that the call connects with no video when you use the MRGL  
tells me that either an MTP or transcoder is being invoked for that  
call.  Since we have no MTP or Transcoders that support video, you  
get audio only.

You can verify this by looking at the Perfmon counters in CCM, by  
hitting the IP phone's web page and looking at the active RTP stream  
(when the audio only call is up) to see the IP address it is sending  
RTP to, or by examining the CCM trace.

-Ryan

On May 17, 2007, at 4:01 AM, Djokic Sinisa wrote:

hi to all..



has anybody experienced the following problem:



ccm4.1(3) – we have gatekeeper configured on ccm and intercluster  
trunk whis is controlled via that gatekeeper ( GNU )..

there is also a route pattern for certain video calls to go from CCM  
side over that intercluster trunk to TANDBERG video terminal ( which  
is registred to the same GNU gatekeeper )..

the phone and the intercluster trunk are in the same device pool  
( g711 )..

when user  ( with IP phone and VTA ) makes a call to that video  
number and succesfull video call is established..

no media resource group list are used at all..



ccm4.2(1) - the same setup as before is copied to the new CCM 4.2 in  
lab..

everything is the same ( including the same gatekeeper ) but it  
doesn’t work..

there are two things..

if we put that device pool ( the one we’re using ) uses media  
resource group list a call is established but without video..

if we don’t put that device pool ( the one we’re using ) uses media  
resource group list a call is droped as soon it is established..







does anybody have an idea about this strange behaviour..

is there something we should know about CCM4.2 or is it u bug..



regards..



Sinisa Djokic

System Engineer
CCNP,CCDA,CQS-CWLDS,CS-CIPTDS,CS-CIPCCES Cisco Certified



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MDS Informaticki inzenjering
Bul. Arsenija Carnojevica 170
11070 Novi Beograd, Serbia
Tel: +381 11 2015 200, 2015 273
Fax: +381 11 3194 954
www.mds.co.yu
sdjokic at mds.co.yu



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