In the FaceTime app to make a FaceTime audio call.
Each participant appears in a tile on the screen. When a participant speaks (verbally or by using sign language) or you tap the tile, that tile becomes more prominent. Tiles that can’t fit on the screen appear in a row at the bottom. To find a participant you don’t see, swipe through the row. (The participant’s initials may appear in the tile if an image isn’t available.)
To prevent the tile of the person speaking or signing from becoming larger during a Group FaceTime call, go to Settings Receive a FaceTime call.
To leave a group call at any time, tap Leave.
The call remains active if two or more participants remain.