It is a functionality added to the web´s browsers, through which it is possible to carry out audio communications in real time. WebRTC is an open-source project promoted by the companies Google, Mozilla and Opera
Microsoft recently started supporting WebTRC, so today it is supported by Google Chrome, Mozilla Firefox, Opera and Microsoft Edge, in addition to IOS, Android, Mac OSX, Linux and Windows 10 operating systems.
It is a multiplatform system, so it is not necessary to use the same platform to get in touch.
At the audio level, WebTRC offers not only the codes, but also components necessary to generate a great use experience. This includes acoustic echo cancellation (AEC), automatic gain control (AGC), noise reduction, noise suppression and access to hardware and control across multiple platforms.
You need, as well as a web browser that supports WebRTC technology, permission to access webcam, microphone and speaker of the laptop or computer.