3CX Phone System is a free VoIP PBX / SIP server 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, Grandstream, Yealink, Cisco & 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, 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. It is supported only via the 3CX Forums. View the brochure, or enter your details below and download it!
If you are an IT or Telecoms reseller, see how you can earn profitable recurring income by becoming a 3CX Partner.