trixbox

Trixbox is a business class IP PBX system based on Digum's Asterisk Open Source PBX Software. The trixbox package makes it fast and simple to install and configure your PBX system. With unlimited extensions, voicemail, music on hold, call parking, and many other features, trixbox brings big business PBX features to small to medium businesses. Whether you need only a few analog lines or high density T1/E1 PRI circuits, trixbox provides all the functionality your business needs.

Trixbox also supports all made hardware manufacturers such as cards from Digium, Rhino, and Sangoma, and phones from Polycom, Linksys, Aastra, Grandstream, Snom, and many others.

The new release of trixbox 2.0 also brings a new package manager allowing administrators to fine tune their system with only the essentials, or fully loaded with SugarCRM, Munin, and other useful applications

you can get an iso at the site to test things out...

When you get comfortable with the initial setup installing and having a functional unit only takes 1-2 hours.

there is more hardware you can add to gain functionality but initially you can use a mic and headset softphone (ie program on the computer)

sip devices are popular...