Perhaps you’ve heard of the PBX called Asterisk. The community that loves this little engine is fuelling the revolution, in exactly the same way that the Linux community did during the Internet revolution.
Asterisk is remarkable technology, not so much due to any new ground broken technically (although it does plenty of that), but rather for a far more important reason: Asterisk is open, and free (as in freedom).
Link: OnLamp.com
