You can start a FaceTime call on your iPhone or iPad, then hand it off to the larger screen on Apple TV when you’re signed in with the same Apple Account. You can also switch the call back to your iPhone or iPad from Apple TV.
Start a FaceTime call on an iPhone or iPad.
Apple TV detects when a FaceTime call is in progress and a notification may appear with the suggestion “Use [device name] to move to TV.”
Do any of the following:
On iPhone or iPad, tap Move (next to the Move to Apple TV notification that appears).
On iPhone or iPad, tap Continuity Camera.
On the iPhone or iPad, do any of the following:
Pause the call: Tap Pause.
Switch the call back to iPhone or iPad: Tap Switch to iPhone or Switch to iPad.
End the call: Tap End Call and Disconnect.