Install a phone webcam app on your phone and the matching client on your laptop
Connect the phone and laptop to the same Wi-Fi network
Open the app on both devices
Allow camera and microphone permissions on the phone
Select the phone camera as the video source in your laptop app or video app
Use a USB cable if the app supports wired connection
Enable USB debugging on Android if required by the app
Trust the computer on iPhone if prompted
Pair the devices using the app’s QR code, IP address, or login method
Test the camera in Zoom, Teams, OBS, or your preferred app
Adjust resolution, orientation, and focus in the app settings
Keep the phone charged during use
Mount the phone securely for stable video
Close other apps using the camera to avoid conflicts