From Engadget: "AT&T's service in New York City has long been decried as some of the worst in the nation -- we've heard people claim 30 percent of iPhone calls drop on average -- but hopefully things are about to get a lot better, as Ma Bell's just finished its 850MHz 3G upgrade in the city. That means the carrier should have more capacity in all five boroughs, and we're told voice quality has improved 47 percent since last quarter. Of course, the proof is in the pudding, so we'll see how things go -- hit us up in comments, won't you?"
http://www.engadget.com/2010/06/28/atandt-says-new-york-850mhz-3g-upgrade-is-complete-voice-quality/
http://www.engadget.com/2010/06/28/atandt-says-new-york-850mhz-3g-upgrade-is-complete-voice-quality/