Bayonne - Telephony Server of the GNU Project
Bayonne is the free multi-line telephony server of the GNU project. Source code available for LINUX/UNIX targeted towards messaging, IVR with considerable extensibility. Bayonne supports a modular architecture, native scripting and TGI. http://bayonne.sourceforge.net/
Unix Speech Recognition
Special Synapse TAP Workstation translates speech into mouse events and keystrokes to control all environments - Unix, mainfame, and Mac with speech recognition. http://www.unixspeech.com/