Setup a VoIP phone and Fax server for your business and save thousands. Open standards, works with the largest selection of phones. Web based administration. Features web faxing, print-to-fax, scheduled conferencing, music-on-hold, IVRs, paging, roaming users, call-parking, and more. Part of a suite of free Open-source software for your business including backup servers, email, domain controlers, phone, fax, security systems. All extensively documented with text and Movie walkthroughs