For the most part, you can both receive and end a call with one gesture: the two-finger double tap. tap two fingers on the screen, then tap them again quickly. When you are receiving a call, this gesture will answer; when you are in a call, this gesture will end it. When ending a call, though, please note that you must remove the phone from your ear and/or lay it flat. This tells the phone to exit the mode where the touch screen is basically turned off, to prevent your face from activating commands as you talk.
iDevice Primer 105: How do I answer an incoming call, or end a call?
Wed, 09 Nov 2011 19:04:44 GMT