To turn on Incoming Call Pause, just open Settings and turn on "Incoming Call Pauses". — Staff replied: “Incoming Call Pause watches for incoming calls on the iOS device. If you mean some other phone like a phone on your desk or something, that's not related of course.”
To turn on Incoming Call Pause, just open Settings and turn on "Incoming Call Pauses". If you have an Activity open with a Virtual Remote that has a Pause button while receiving an incoming call, Roomie will send that Pause command immediately when the call starts ringing.