This Android app aims to be a small video conference app created using mainly WebRTC technology. With it, you can make calls though a web socket connection
I wrote a post on what's the development about. You can check it out here. This apk isn't signed because is not suppose to be uploaded to the market and it's just a concept app so if you download it, you're mobile probably won't allow you to install it unless you give permissions to install apps from unknown sources for this case.