said by FastiBook:Hold on i need to hang up to look up the information, i'll call you right back because evdo 3G has serious limitations and a very low top speed that isn't planned on being upped. No thanks.
When i talk to someone on my iPhone, if i'm holding it to my ear it sounds like a regular landline, if i put on the included headset, it sounds like i'm standing 6 inches from the person hearing every tone of every letter they pronounce while talking to me as if i'm in a one on one conversation with a person inside my head.
Have that, will keep.

- A
I must say, I can't complain about AT&T's call quality. I have had no problems at all with that on my iPhone.