I've never been a big phone talker, I prefer to talk face to face or text, but I just rolled my phone over 100 hours and thought about how long I'd actually spent chatting away.
If I talk I keep my calls to a minimum. I hate talking on phones. I've restored a number of times, so my call time has been reset, but I'd guess maybe 3 hours total over the year or so I've owned the phone.