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Use SIP trunks, WebRTC & Apps

Slash your Phone Bill by 80%

Get Your Free Asterisk®* PBX Alternative

Switch from your Asterisk® PBX to a multi-platform phone system

Enter 3CX – your Asterisk® alternative. A software-based, open-platform VoIP phone system which offers complete Unified Communications features out of the box. Asterisk®-based PBX systems can be limiting in regards to the platform you can deploy them on; not the case with 3CX. Install on-premise on Windows or Linux. Prefer the cloud? 3CX’s PBX Express deployment tool allows you to host your IP PBX in YOUR cloud account.

  • Run on-premise: Windows or Linux

  • Self host with YOUR cloud account

  • Zero admin

  • Bulletproof Security

  • Apps for Windows, Mac, iOS and Android

  • WebRTC based web conferencing

  • Open-platform – choose your own IP Phones and SIP Trunks

Asterisk alternative smartphone apps interface

* Asterisk® is a Registered Trademark of Sangoma Technologies. This trademark is not affiliated with 3CX, its products, or its websites. Sangoma Technologies is not the source of, and does not sponsor or endorse, the products/services promoted here. 3CX is not associated with or sponsored by Sangoma Technologies. All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

Free for up to 1 year! Select preferred deployment:


for Linux on a $200 appliance or as a VM

Get the ISO


for Windows as a VM

Download the setup file

On the cloud

In your Google, Amazon, Azure account

Take the PBX Express