3CX Phone System

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Developer(s) 3CX
Stable release
Version 15.5 / June 2017 (June 2017)
Written in C++
Operating system Microsoft Windows, Linux
Type Voice over Internet Protocol
License Proprietary
Website https://www.3CX.com

3CX is a software based private branch exchange (PBX) based on the SIP (Session Initiation Protocol) standard. It enables extensions to make calls via the public switched telephone network (PSTN) or via Voice over Internet Protocol (VoIP) services. 3CX for Windows and Linux is an IP business phone system that supports standard SIP soft/hard phones, VoIP services and traditional PSTN phone lines.


3CX was developed by 3CX, an international VoIP IP PBX software development technology company as an open-standards, software-based PBX. First published as a free IP PBX product in 2006, the product was intended to provide a VoIP solution for use in a Microsoft Windows environment.[1]

The first commercial edition of the product was launched in 2007. Reviews of the product have noted its easy configuration, management, and hardware compatibility.[2][3][4][5] Smith on VoIP commented in a blog post about 3CX that it was very easy to use.[6] In 2009, it was featured on the internet TV show Hak5.[7] On 7 June 2017, 3CX released version 15.5 with a complete feature set from WebRTC video conferencing, presence, chat and voicemail and a brand new Web Client.

See also[edit]


  1. ^ Alexis Argent (2009-09-30). "VoIP Uncovered » Why 3CX? Interview with Nick Galea, the CEO of 3CX". Blog.voipon.co.uk. Retrieved 2017-02-28. 
  2. ^ "Latest Topics | ZDNet". Reviews.zdnet.co.uk. 2015-06-30. Retrieved 2017-02-28. 
  3. ^ [1]
  4. ^ "Unified Communications". Voipplanet.com. Retrieved 2017-02-28. 
  5. ^ [2]
  6. ^ "3CX Review | DIY PBX". Smithonvoip.com. Retrieved 2017-02-28. 
  7. ^ "Episode 503 – Build a free VoIP PBX in under 10 minutes – Start programming a USB Dev Board for less than $20 | Technolust since 2005". Hak5.org. Retrieved 2017-02-28.