Enabling this setting allows for my users to keep their productivity app opened when they answer the phone, so it will be easier to push the button to end the call while they are driving and their device is sitting in the cradle. They currently have to swipe down from the top to get to the phone activity and then end the call. I have tried this myself and the phone blacks in and out while i am trying to swipe down to get to the call. It is rather inconvenient  for our drivers and having the in call session on the phone alleviates this issue. They can simply press the end button from there. will attach video and setting i changed manually to get this: