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@@ -386,6 +386,10 @@ _[IPBX](https://en.wikipedia.org/wiki/IP_PBX) telephony software_ * [twister](http://twister.net.co/) - Fully decentralized P2P microblogging platform leveraging the free software implementations of Bitcoin and BitTorrent protocols. ([Source Code](https://github.com/miguelfreitas/twister-core)) `BSD/MIT` `C++` * [Vanilla Forums](https://vanillaforums.org/) - Simple and flexible forum software. ([Source Code](https://github.com/vanilla/vanilla)) `GPLv2` `PHP` +### Instant Messaging + + * [Spectrum 2](http://spectrum.im/) - Spectrum 2 is an open source instant messaging transport. It allows users to chat together even when they are using different IM networks. + ### XMPP **[`^ back to top ^`](#)** |