[cisco-voip] Use of MTP for H.323 Gateway

[Jason Aarons (US)]

I'm curious why products like UCCX or Unity can't do codec negotiation?
Is it a roadmap to add?

 

Microsoft RTA/RTV or Skype can change bandwidth, react to conditions
without re-installing the products.

 

I'm thinking for lan users use wideband, for wan users with packet loss
use iLBC, for wan users without loss use G729a, etc.

 

Will this capability be around 10 years from now?

 

________________________________

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Matt Slaga (US)
Sent: Wednesday, August 20, 2008 7:57 AM
To: Aman Chugh; cisco voip
Subject: Re: [cisco-voip] Use of MTP for H.323 Gateway

 

Your stream must not be 711 end to end.  UCM is attempting to introduce
a transcoder into the stream which is where the no MTP resources is
coming from.  Generally speaking, mtp resources are only needed for H323
with v1 gateways to handle supplementary services.  Unlike transcoding,
the soft mtp resources in UCM can be utilized.  In your case, I bet UCCX
is still trying to handle calls with only G711.  If it was not installed
to use G729, it will have to be re-installed to begin using.

 

 

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Aman Chugh
Sent: Tuesday, August 19, 2008 4:50 PM
To: cisco voip
Subject: [cisco-voip] Use of MTP for H.323 Gateway

 

 

Why do I need an MTP for a call coming in from an H.323 gateway, In my
case I have centerlized callmanager deployment where callmanager , IPCCX
and Voice gateways are at a centeral site and call lands at remote IPCC
agent, the call rings and the agent answers but only hears beep when I
use G.729 codec  and the call is established when I use G711 , I can see
no more mtp resources error in RTMT.  Any hints would be appricated.

 

 

TIA

 

Aman

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