The Columbia Linux Users Group met on 8 February 2007 at 6:30 PM in Swearingen Engineering Center.
Someone gave a demo of Asterisk/Trixbox.
Doug Simar followed up with the following info:
Trixbox If you know what VMware is then you can actually play with Trixbox in the VMware player for free and not actually have to format a machine or go through the pain of dual-booting.
http://vmware.com/download/player/ - Download and install the player then unzip the image and user the player to install it. It will take up some serious system resources so those of you who have less than stellar computer please make sure you have at least 1 Gb of RAM.
Digium is the main company supporting Asterisk.
Here's a good little video by the folks at Revision 3 (aka Kevin Rose from Tech TV Fame).