Ring is a free software for communication that allows its users to make audio or video calls, in pairs or groups, and to send messages, safely and freely, in confidence. Savoir-faire Linux and a community of contributors worldwide develop Ring. It is available on GNU/Linux, Windows, Mac OSX and Android. It can be associated with a conventional phone service or integrated with any connected object. Under this very easy to use software, there is a combination of technologies and innovations opening all kinds of perspectives to its users and developers. Ring is a free software whose code is open. Therefore, it is not the software that controls you. With Ring, you take control of your communication!