3CX Phone System is a free VoIP PBX software for Windows that allows you to easily set-up a professional, modern phone system for your business!

• Use popular VoIP providers and SIP trunks for low cost calling.
• Use popular IP Phones (Polycom, Snom, Cisco, Aastra & others) or Softphones.
• Keep using your old telephone lines with the use of VoIP gateways
• Runs on Microsoft Windows - no need to dedicate a PC or learn Linux! Eliminate phone wiring.
• Includes enterprise phone system features such as voicemail, auto attendant, fax server, unified communications and more.

3CX Phone System FREE edition is a fully functional product - it supports an unlimited number of extensions and does NOT time out. Its is supported only via the 3CX Forums. Take a product tour, or fill in your name and download it!