Ring is a decentralized, peer-to-peer communication platform designed to preserve user privacy. To the end-user, it is similar in functionality to Skype, providing text chat, voice calls, and video calls. However, unlike Skype, Ring uses no central servers and all communications are end-to-end encrypted. Ring is developed and maintained by Savoir-faire Linux, a Canadian company, with contributions from a global community of developers. Ring is free software, with source code available from Savoir-faire Linux's gitlab site. In addition to using its own eponymous peer-to-peer network, Ring can also act as a standard SIP client to make voice-over-IP calls. Ring is available for Windows, macOS, Linux, and Android.