I think that Polycom uses Siren14 aka G.7221c  in it's Video Conferencing products like V500 and VXS. In case of IP phones, Soundpoint IP 650 uses wideband codec aka G.722.

BR,
Irshad.

On Jan 30, 2008 8:24 PM, Brian West <brian.west@mac.com> wrote:
Well I have Siren 14 coming but still what devices support that?

/b

On Jan 29, 2008, at 10:43 PM, Irshad Ahamed wrote:

> Speex codec supports UWB. I guess Polycom has some device which
> works on UWB and they have proprietary UWB codec called Siren.
>
> BR,
> Irshad.