[cisco-voip] Conference with remote resource using G.729

[Robin H]

Hi Ryan,

There is a hardware MTP in hq. Can I use it to do transcoding so that
when hq phone1 initiate the conference and then invite site1 phone,
site1 phone will still use G729 codec instead of G.711? If yes, what
is the region that I should use for the MTP in hq.

thanks,
Robin

On 5/16/06, Ryan Ratliff <rratliff at cisco.com> wrote:
> The CM software CFB only supports g.711.  If your conference is
> actually being established at g.711 then somebody has most likely
> placed your CFBs in a region that is set to do g.711 to all other
> regions.  Otherwise you would have never been able to get the
> conference established.
>
> Your options are a transcoder or hardware conference bridge.
>
> -Ryan
>
> On May 15, 2006, at 11:48 AM, Robin H wrote:
>
> I have CallManager server at hq site and a WAN/Voice router in branch
> office (site1). Site1 phones are using conference and transcoding
> resource from CallManager. When I made a call from hq to Site1 (it
> uses G729 for VoIP over WAN) and then initiate conference from hq
> phone to outside, the conference can be established but it uses G711
> for both hq and site1 phone. Is there a way I can force the site1
> phone to use G729 even when in conference to save WAN bandwidth? I
> read about transcoding feature is to save WAN bandwidth. In this case
> How can I use it for site1 phones? Thanks
>
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