> > Vonage uses the g711 codec, which takes up 64kbps. I don't > know why > > they don't use g723 or something which uses lower bandwidth. g723 > > uses about 5kbps, and the quality is pretty much indistinguishable > > through a phone speaker. > > it's not indistinguishable from a DSP perspective. it > entails significantly more aggressive compression and their > head end boxes may not support it. The ATA-186 device supports it. It's possible they ripped the support out of it though since they run custom software on it. Jay