I have had Cingular/AT&T for three years and have been relatively pleased with their service. The sound quality isn't as good as I'd like, but my coverage is pretty good and I like the roll-over minutes. My main complaint: I use my AT&T phone for business and I often participate in conference calls that usually last about an hour. It seems that inveriably, my call gets dropped after 45 minutes. It's not a signal strength problem - I can immediately call back in. So I think AT&T is intentionally dropping my calls after 45 minutes. I read the post about drops after 20 minutes. Is anyone else having this kind of problem?