Kalkun is an open source web-based SMS (Short Message Service) manager.
It uses Gammu SMSD (part of gammu family) as SMS gateway engine to deliver and retrieve messages from your phone/modem.
Documentation is on the wiki: https://github.com/kalkun-sms/Kalkun/wiki
Development and source code can be found on github: https://github.com/kalkun-sms/Kalkun/
JAVIER is a JAvascript Voicexml InterpretER, designed (but not restricted) to run inside a web browser, its main engine has less than 1000 lines of code. It's maybe, the tiniest but (almost) FULL VoiceXML implementation.
SafiServer is an engine that powers the applications (called Saflets) created using SafiWorkshop. SafiServer uses these applications to control communications (i.e. Asterisk) along with a multitude of other applications (database, email, etc).
Process flow designer that creates applications (Saflets) for us in the SafiServer engine. SafiWorkshop is used for the design, real time debugging and deployment of advanced flow based applications. Currently tailored for use with Asterisk PBX.