I am one who doesn't like the phone app pages disappearing all the time. Doesn't matter whether the phone is up to my ear or if I keep it in front of me. I'd like to see an option added that you can select to keep the phone and directory pages up, especially in a call when I need to address other apps during a call instead of holding finger or thumb on the screen or repeatedly tapping the phone because it blanks off even if you hold a finger still on the screen. It is really frustrating to me.
The screen timeout for the phone dialer and the proximity sensor are two different functions. The proximity sensor is supposed to turn off the screen when against your ear to prevent accidental commands. The screen timeout when you have the phone on speaker is to conserve battery power, since phone calls use a lot of power and screen on time uses power. Samsung refuses to and probably never will make this time out period adjustible, despite repeated calls for it from everybody. The only ways to keep the screen active is to tap it when it starts to fade, or return to the home screen while on your call. The mini phone screen will appear, and should you need to access the keypad, you would tap it to return to the call screen.
