Jitsi Meet – video conferencing using the browser or the Jitsi Meet application for your smartphone.
Jitsi Meet is open source software that enables video conferencing with one or more participants. The special feature: No account is required for use, just a web browser (which supports WebRTC) or the app for Android or iOS.
When you join a conference for the first time, your browser will (usually) ask for permission to access the webcam or camera and microphone.