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"Tthe audio quality was decent. Voices sounded natural and we heard a satisfactorily low amount of "side noise," which is the sound of your own voice coming back through the phone. Wind noise was apparent in some instances, and the volume could be louder."

"Compared side-by-side with an iPhone 3G, the 3GS showed exactly the same reception, dropped calls in the same places, and failed to dial under the same network conditions."

"Overall voice quality was fair to good, with some fuzziness on the line…. We wish the earpiece volume was a bit louder, but donning the included earbuds helped, because it blocks some ambient noise."

"Call quality and reception remained the usual mixed bag we've come to expect from AT&T. Calls sounded adequate, but sometimes lacked the crisp clarity I've experienced with other handsets, including the T-Mobile G1 and the T-Mobile MyTouch 3G. How much of this is attributable to the AT&T network versus the handset itself is unclear, but moot anyway..."

"The iPhone is still a stellar music and video iPod, with one major advantage over the older 3G model: Stereo Bluetooth works much better. Music played over Altec Lansing BackBeat 903 Bluetooth stereo headphones had much less distortion."

"The iPhone continues to be a top-notch media player, and with up to 16GB or 32GB of storage space at your disposal.... Background music playback continues to be a highlight, as the iPhone 3G S can keep the tunes pumping while you surf the Web, check e-mail, and use third-party apps such as AIM or ESPN ScoreCenter."

"We were very glad to see a stereo Bluetooth profile arrive with iPhone OS 3.0.... The pairing process was easy and incident-free. In the music player, a small Bluetooth icon appears next to the player controls. Press it to route audio to the headset; you then can toggle back and forth between the speaker and the headset."