We the dual-band (CDMA 800/1900) HTC 7 Pro in San Francisco using U.S. Cellular's roaming network (San Francisco is outside of the carrier's home coverage area). Call quality sounded great to our friends on the other end of the line: clear without any distortion or background noise. They said it sounded almost clear enough to be a landline. The call didn't sound quite so rosy to our ears. While it was definitely acceptable, a haze of white noise pervaded the calls, and overly loud volume caused distortion; the voices sounded too "hot."
HTC 7 Pro call quality sample
Callers complained that speakerphone made our voice sound highly muffled and echoey. On our end, volume was nice and loud, but callers' voices did buzz and sound brassy.
We liked the Arrive when it was first released, especially as an example of a nicely designed QWERTY Windows phone, and we like the HTC 7 Pro now. Yet, times have changed since Microsoft unveiled its then-high-end hardware requirements for Windows phones. Today, dual-core, 4G phones are leading the pack and leaving single-core, 3G handsets like the HTC 7 Pro behind. Taken on its own, the HTC 7 Pro is a good phone, and a fine example of the Windows Phone 7 platform. When the HTC 7 Pro is matched against its toughest Android competitors, though, it's clear that Microsoft and HTC will need to work harder to keep the Windows Phone standards from becoming obsolete.
That said, U.S. Cellular customers looking for an Android alternative will find the HTC 7 Pro a sturdy, reliable, attractive handset with a bold design and a friendly user interface.