Does the Key2 have a better microphone than the KeyOne?
The phone quality of the KeyOne really is annoying. It is ok as long as you are in the room allone, but if you are in the public - where you usually want to speak more quietly - you really would have rather to shout so that the other party will understand what you are saying.
I think this is a problem of the microphone position and quality, plus the phone size. I didn't have these problems with the Q5.