Setting up a simple WebRTC audio only call

In the previous chapter, we had developed an application that implemented the most common WebRTC example of setting up a video call between two browsers. But sometimes, you may not have enough bandwidth to support video streaming, the browsers may not have cameras connected, or the users may just prefer to simply participate in a voice call instead. Here, we will show how easy it is to adapt the existing application we have developed to turn it into an audio only application.