Your typical applications:

• Plugin-Free Video conferencing: appear.in
• Text Chat
• File sharing: Sharefest
• Screen sharing: Talky.io

Think outside the box:

• Low-latency multi-player game: Bananabread
• Content-delivery network: PeerCDN
• Bitcoin P2P payments: Copay
• Publish-Subscribe use cases: PubNub

• Native Browser support: Chrome, Firefox, Opera
• Extension for: IE, Safari
• iOS: native build
• W3C Standardisation: WebRTC 1.0
• WebRTC 1.1 will include ORTC Community Group work

OpenTok for Customer Service

ZenDesk Voice

Zingaya

Cafe X

• MediaStream API
• RTCPeerConnection API
• RTCDataChannel API

• SimpleWebRTC (foss by &yet)
• PeerJS (foss with PeerServer Cloud)
• TokBox (API plus hosted service)
• vLine (API plus hosted service)
• many more

Mesh topology, unless you use an MCU

Open Source MCU: Janus

Requirements: a Web page, a Web server, a USB camera on both ends

Additionally: a signalling server = rtc-switchboard

Payload: SDP packet (Session Description Protocol)

Options for a Signalling Server:

• XHR / Comet - Web signalling
• SIP (Session Initiation Protocol) - VoIP and Telcos anyone?
• XMPP/Jingle (Extensible Messaging and Presence Protocol) - Telepresence anyone?
• email
• carrier pidgeon
• Websocket Server - socket.io or Primus.js

...based on Primus.js on node.js

Primus is a universal wrapper for real-time frameworks

Setup:

git clone https://github.com/rtc-io/rtc-switchboard.git
cd rtc-switchboard
npm install
SERVER_PORT=8997 node server.js

...and use it in our example

Browsers have built-in diagnostics for RTCPeerConnection:

• On Chrome: chrome://webrtc-internals
• On Firefox: about:webrtc

Understand your SDP packets:
http://webrtchacks.com/sdp-anatomy/

Check your Internet Connection:
http://netscan.co/

Use rtc-quickconnect module for your development

Example multi-peer application:
rtcio-demo-quickconnect

Requirements: a Web page, a Web server, a USB camera on both ends, a signalling server

Additionally: a STUN server (Session Traversal Utilities for NAT)

Requirements: a Web page, a Web server, a USB camera on both ends, a Signalling Server

Additionally: a STUN/TURN server (Traversal Using Relay NAT)

Add to the setup of the RTC object:

var rtcOpts = {
  room: 'wdcnz',
  signaller: '//switchboard.rtc.io',
  iceServers: [
        { url: 'stun:rtcjs.io' },
        { url: 'stun:stun.l.google.com:19302'},
        { url: 'turn:turn.server:3478', credential: 'passwd', username: 'user'}
  ]
};
var rtc = RTC(rtcOpts);

RTCDataChannel API similar to WebSocket API

function bindDataChannelEvents(id, channel, attributes, connection) {
  channel.onmessage = function (evt) {
      messages.innerHTML = evt.data;
  };
  messages.onkeyup = function () {
    channel.send(this.innerHTML);
  };
}

rtc.on('ready', function(session) {
  session.createDataChannel('chat');
  session.on('channel:opened:chat', bindDataChannelEvents);
});

For pure DataChannel use, remove audio/video capture:

<script src="path/to/rtc.min.js"></script>
<div id="messages" contenteditable></div>

var rtcOpts = {
  room: 'wdcnz-data',
  signaller: '//switchboard.rtc.io',
  capture: false
};

var rtc = RTC(rtcOpts);