I have an HTC 8x and have noticed the last couple of weeks that when I am talking with someone and click the end call button, it can take up to 20 seconds before the phone finally ends the call. Prior to the last couple of weeks my calls were always ended right after clicking the button, but now it is sporadic. The phone sometimes ends the call right away, but usually it takes anywhere from 3-5 seconds and has taken as long as 20 seconds. Is anyone else having this happen?