Whenever I am on a call, my phone screen goes black after about 10 seconds of inactivity. Then you have to hit the lock screen or home button to light it up. It's very annoying for conference calls - especially if you need to be on Mute or off Mute quickly.
I downloaded a Keep Screen On App, but it drains the battery so fast and doesn't work well.
Any ideas on what to do to have the phone dialer screen stay on during calls?