Ring (SFLphone) is an open-source SIP-compatible softphone and instant messenger for Linux, Microsoft Windows, OS X and Android. Developed by Savoir-faire Linux
License: Open Source
Ring is primarily focused on home security and smart device integration, offering features like video calls and real-time notifications. In contrast, Pidgin-Encryption emphasizes privacy and multi-protocol messaging, appealing to users who prioritize security and customization.