I'm new to the bluetooth experience and I'm looking to purchase my first. Most important to me is sound quality for me and the other caller, but I wanted to be clear on some of the features with the most favorably reviewed headphones I've been able find.

On another board I saw it reported that the 662 doesn't have call waiting or redial features that other bluetooth headsets have. It also reported that the Plantronics Discover 640 doesn't have redial. Can someone verify that for me? Also, if it doesn't have these features does that mean you just have to do it through the treo phone where the others you can do with the headset?

Again, I could live without these features if I can still do it from the phone and if it means I have a headset that gives the best sound quality. Any input on the best sound quality would be much appreciated...