FACETIME GOT YOU UPSIDE DOWN? TURN THAT FROWN AROUND!
The orientation lock is an easily overlooked option in iOS and iPadOS Control Center that lets you prevent apps from rotating their view when your device detects it’s turned a corner. This can be useful when viewing a video, reading a book, or engaging in other activities during which you don’t want to have the app reformat from portrait to landscape or landscape to portrait.
FaceTime honors the orientation lock in a way that might confuse other people: They always see your locked orientation. If you don’t remember that you have orientation lock enabled, other participants in a call may think it’s their fault that they can’t get you in the
