Show your front and back camera at the same time during a meeting so that when you use your mobile device's back camera, you can remain on screen.
Tap Camera .
Toggle Dual Camera on.
By default, your back and front camera video appears side-by-side.
(Optional) Tap the side-by-side icon to change your dual camera video layout to picture-in-picture.
Your front camera appears as a smaller video within the larger video of your back camera.
Tap Start My Video.