WebRTC - In order to enable web calling, it is important to verify that your browser is compatible with WebRTC technology. Fortunately, most modern browsers such as Chrome, Edge, Safari, Firefox, and Opera support this technology. If you are unsure whether your browser is compatible, you can check its type and version by visiting the following link: https://caniuse.com/?search=webrtc This will allow you to compare your browser's details with the list of supported browsers and versions.
Browser microphone permissions - To enable web calls, you must have a device equipped with a microphone and grant the necessary permissions. Laptops and smartphones come with a built-in microphone.