buggy terrible phone app, I would have never used it if it wasn't the one that came default on the phone. I've had it dropped calls blue screen the phone where I need to hard reset it, had the phone freeze, had the phone lock out where it doesn't take inputs anymore, right now after the last call the top bar of my phone is flashing on and off because the phone app is trying to open and close and open and close while I write this review.