I use always use the hands free speaker to make and receive phone calls, so this is not a proximity sensor issue. The VS995 display fades out and goes to black after a few seconds on any phone call, making it impossible to use voicemail or automated phone systems. You can't "Press 1 for the starter, 2 for the bar" if you can't see the keypad. Under "Call Settings", "Advanced", "Show Keypad", selecting "All Calls" has no impact apparently. Would love to know if there is any way to keep the display on my stock LG V20 from sleeping during a lengthy call. Thanks for any help.