[cisco-voip] Moving to G729 - Transcoder Questions

[Craig Staffin]

Steven,

Unity can support G729 as well as all of your endpoints and gateways.

The only time a transcoder would be needed is if you had a call start as
G711 and then get transfered over the WAN thus needing to get transcoded
from G711 to G729  This usually only happens during a conference call.

As far as your long distance calls they will simply get setup as a G729 call
to begin with therefor no need for transcoders.

Craig

On Dec 20, 2007 12:34 PM, STEVEN CASPER <SCASPER at mtb.com> wrote:

>   We have been using G711 to our branches for IPT and I am now looking at
> using G729. I am confused as to my transcoder requirements. I would think I
> would need to provision DSP based transcoder resources at the remote
> locations and also at the central location so G729 would always be used
> across the WAN. I think that transcoding resources would be required at both
> the remote location and the central location for the following scenarios
> across the WAN link:
>
> Calls to a centralized Unity
> Calls to centralized PRI gateways for Long distance calling
> Calls to/from  IP phones at G711 locations?
> Conferencing IP phones and an analog or digital trunk
>
> Does this look correct? For some reason determining when a transcoder is
> required is proving to be hard for me to grasp. Are there any other
> scenarios where transcoding would be required?
>
> Thanks!
> Steve
>
>
>
>
>
>
> Steve Casper
> Voice Technologies
> M&T Bank
> (410) 347-6026
>
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-- 
Craig Staffin
Craig at staffin.org
(H) 262-437-7313
(C) 262-613-6003
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