On 5 Jan 2011, at 13:07, Steve Underwood wrote: > > G.722.1 is a 7kHz bandwidth codec. G.722.1C is a stretched version offering > 14kHz bandwidth. These are most often found in Polycom phones, but they are > available elsewhere. The only widely supported HD codec is G.722. Pretty much > anything offering wideband voice supports G.722.
Except skype which only supports SiLK as the HD codec. I mention this because most people's experience with HD will be in a Skype-to-skype call, although admittedly not in this group. T. Tim Panton - Web/VoIP consultant and implementor www.westhawk.co.uk -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users