[cisco-voip] Transcoder Issue

[H, Tim]

Looks like the site I'm having the issue at is only multicasting MOH.  I'll try to add a unicast to see what happens.  Might not be able to do it now, as it could reset all devices associated with it.

Thanks!

Tim

From: Wes Sisk [mailto:wsisk at cisco.com]
Sent: Friday, August 13, 2010 1:34 PM
To: Peter Slow
Cc: H, Tim; cisco voip
Subject: Re: [cisco-voip] Transcoder Issue


On Friday, August 13, 2010 1:11:04 PM, Peter Slow <peter.slow at gmail.com><mailto:peter.slow at gmail.com> wrote:


routing (connectivity) to device in the other center?  If xcoder is invoked

then media may NOT flow from MoH server to xcoder properly. In this case it

would depend if you are using unicast or multicast (I don't think xcoders

handle multicast moh).  Does the CM hosting the MoH server have ip

connectivity to the xcoder?





..They dont, (neither will IOS MTPs or CFBs. and up until somewhat

recently recently theres no multicast moh period across an ICT, even

without a transcoder in the mix.




ws: yep, http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/rel_notes/7_1_1/711newchange.html#wp694130


At the same time, what IP interface on the

router is the transcoder bound to?  It could be bound to an IP interface

that is not advertised in routing protocols so all devices don't know how to

reach the transcoder IP address.





The interesting thign to consider here is that the xcoder , in order

to be used, necessarily has IP connectivity with at least one CUCM

unless someoens gone out of their way to cofngure separate media and

signalling addresses.



Oh wait, Tim, is your transcoder a CMM module? (I snicker, but ask a

serious question)



Tim, considering that you HAVE to have IP connectivity to one or more

CUCM servers, do you know what server is doing MoH for the XOCDE? The

MoH server will be selected from the MRGL on the device pool that the

utilized transcoder is in.



Thinking more abotu your issue aloud, can you tell us which side of

the ICT the transcoder is invoked on? what I just stated regarding IP

connectivity made the assumption that the transcoder is on the same

side of the ICT as the IP phone user hitting the hold key.



also, do everything wes said =)



-Peter





/wes



  I've triple checked my configs with the transcoders and I never see any

calls being transcoded on my voicegateway.  I have the exact same setup at

another site with no issues.







Any ideas?







Thanks,







Tim



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