Great piece of hardware, junk firmware, junk drivers and negligible customer support. The phone is buggy with the "Battery Full" chime popping up every 3 minutes or so while playing .mp3's, USB drivers aren't digitally signed and Windows 7 won't allow them, their modem and sync tool crashes (probably because the drivers don't work). Customer support consists of a dozen or so FAQ's geared toward the truly clueless, a link to your service provider, and a generic comment box. I don't expect Sonim to be around to make good on the 3-year warranty, so I'm getting out while I still can.