Update your iPhone to the latest iOS version
Update your Mac to the latest macOS version
Sign in to the same Apple ID on iPhone and Mac
Turn on Wi-Fi and Bluetooth on both devices
Place the iPhone near your Mac
Open the video app on your Mac
Select your iPhone as the camera source
Use Continuity Camera if it appears automatically
Mount the iPhone securely in landscape orientation
Keep the iPhone unlocked if required by the app
Allow camera permissions when prompted
Use a Lightning or USB-C cable if wireless connection is unstable
Adjust framing and angle before starting the call
Enable portrait or studio effects if available
Stop using the camera from the app when finished