[cisco-voip] transcoding from g711 to g729 with CME

[Hinson, Greg]

thanks for the reply. debug voip dial-peer does show the right dial-peer
matches. The WAN is forced to codec 729, as well as the sip dial-peer
for unity forced to g711ulaw. I also added transfer-pattern .T to
telephony-service. cme phone to cme phone cfa to VM always works great,
as well as enterprise to cme if the codecs are forced to g711ulaw
end-to-end. it only fails when g729 is added to the region and wan
dial-peers. also, when i run debug dspfarm, I see no activity on the
output during the attempt, as if the CME's Media Resource Manager is not
even being called to provide transcoding.

-Greg


-----Original Message-----
From: Ted Nugent [mailto:tednugent69 at yahoo.com] 
Sent: Friday, August 04, 2006 8:12 PM
To: Hinson, Greg; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] transcoding from g711 to g729 with CME

Yes, I've had the exact same problem and finally
figured it out.
First of make sure your matching your inbound (from
WAN) and outbound (to CUE) DPs... (debug voip dialpeer
all). If not make sure your translation rules are
right or tranfer-pattern .T is added in tel-serv. Most
importantly make sure you lock in your WAN DP to
G729... if you use a voice class with G711 it will
never work even if G729 is prefered first.


HTH
Ted


--- "Hinson, Greg" <Greg_Hinson at adp.com> wrote:

> I have a client that is using CME at a remote store
> and Enterprise
> CallManager at the host location. I have regions
> setup, forcing the
> calls destined for the remote location to g729. The
> CME hardware is a
> 2821 platform running 12.3.14T7 spservices IOS with
> an NM-CUE module.
> Using a gatekeeper to interconnect the two
> callmanagers, I can
> successfully negotiate a g729 call across the
> network, but on a CME
> call-forward-no answer condition to Unity Express,
> the call drops with a
> fast busy. I followed the guidelines referenced in
> the doc below for
> creating a dspfarm/sccp profiles and its assignment
> to
> telephony-service, but with no success. I also
> upgraded the IOS to
> 12.4.3, thinking it was an incompatibility issue
> with 12.3.14, and I
> have the same problem.  Any ideas?
>  
>  
>
http://www.cisco.com/en/US/partner/products/sw/iosswrel/ps5207/products_
> feature_guide_chapter09186a00802d255d.html
>  
>  
>  
> -Greg
>  
> 
> 
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