In this chapter, we developed a video conference service using WebRTC. During the development process, we learned what STUN and TURN servers are and how they can help us achieve our goals. We got an introduction to the main WebRTC API functions. Now you know what we mean by keywords such as ICE and SDP and why they are very useful.

You also had a chance to get acquainted with Erlang and WebSockets, if you were not already acquainted with them.

In the next chapter, we will learn what Data API is and will develop a peer-to-peer file-sharing application. Most of the keywords and code will be not new for you, so it will be easier to get to the topic.