A new device that either is pressed, or monitors the door being opened, so the Ring app understands when you have physically answered the door as well as when you have answered via the app.
It stops the ‘quick reply’ kicking in, and it also ensures the answered/unanswered status is accurate. At present, the concept of ‘answered’ in Ring is actually ‘talked to via the intercom/looked at on the camera’, which misses off the true definition of answering the door… which is answering the door.