When someone gets a call, they get a popup notification with "Answer", "Decline", etc.
When they tap "Answer", Android Dialer opens in full screen and takes them away from my app.
They can then app switch back into my app, at which point the ongoing call displays as a chat-head or a persistent notification.
I'm curious if there's any kind of setting or state I can adjust (without the user having to do anything) to make that immediately happen when they answer? That is, instead of Dialer taking them into full screen, when they tap "Answer" on the Dialer notification it just picks up the call in the background and keeps the original app in the foreground?