JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://www.rtcmulticonnection.org/latest.js"></script>
Não funciona no internet explorer.<br><br>
Código do servidor:<br>
<button id="audio">Transmitir microfone</button>

JavaScript

var connection = new RTCMultiConnection('channel-654654-34434-12121');
connection.session = {
    data: true
};
connection.open();


document.querySelector('#audio').onclick = function() {
    connection.addStream({audio:true,oneway:true});
};