I'm not too impressed with the call quality on the Vibrant. Actually, it's my worst phone to date in terms of call quality. It honestly seems the more advanced these phones are getting, the more they neglect what their sole purpose is, which is calling and call quality. I hear faint, but very annoying static with long distance calls, especially noticeable when I have the headset in. People also tell me I sound much deeper and that the call quality is generally not as good as my previous cell phones. The best phone I've ever had for call quality was a Motorola RIZR. Every phone after that just seemed to get worse and worse with it. You would think that something like this should be improving over the years. Not the case with me. The phone is excellent in every other aspect besides call quality.