[cisco-voip] Conference with G.711 and G.729
Voll, Scott
Scott.Voll at wesd.org
Thu Jul 5 11:39:05 EDT 2007
You are correct. You need DSP resources setup to conference /
transcode.
Scott
-----Original Message-----
From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Paul Choi
Sent: Thursday, July 05, 2007 1:04 AM
To: Reto Gassmann; cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] Conference with G.711 and G.729
Usually transcoding is done via DSPs installed in the
gateways or via a hardware MTP which is likely packed
with DSPs also. This is my understanding and I could
very likely be incorrect.
--- Reto Gassmann <voip at mrga.ch> wrote:
> Hi all
> we run a CM 4.2(3) and have some phones wih G729 and
> some phones with G711. It
> is not possible to set up a conference between G729
> and G711 phones.
> What do I need if I want to enable conferences
> between G711 and G729 phones?
>
> Cisco writes about transcoders, but as it seems all
> of them are hardware based.
> So if I understand that right: the CallManger itself
> is not able to do the
> transcoding work.
>
> Thanks for feedback
> Reto
>
>
>
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