Open Source PBX Phone System

User for VoIP and POTS.

originally developed by Digium

Jul'2003 article

Aug'2005 article allows Asterisk users and IAX clients to connect with each other over the Inter-Asterisk eXchange protocol.

List of US consultants (includes some in NYC).

Switch Vox has packaged it for increased usability

So has Fonality

Edited:    |       |    Search Twitter for discussion