My Note8 Phone Dialer Goes Black during calls

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?

Show Accepted Answer

Guest Quick Reply (No URL, BBcode or HTML)

Last post by ferry.cindy
1 hour ago
Last post by hodkiewicz.mary
1 hour ago
Last post by jason61
2 hours ago
Last post by ilebsack
2 hours ago
Last post by kendall50
20 minutes ago
Last post by schmidt.quinten
2 hours ago
Last post by fmclaughlin
33 minutes ago
Last post by thelma32
4 hours ago
Last post by sandrine.lubowitz
53 minutes ago
Last post by edmund.rowe
2 hours ago
Last post by zcorkery
1 hour ago