Browse free open source PBX software and projects below. Use the toggles on the left to filter open source PBX software by OS, license, language, programming language, and project status.

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  • 1
    trixbox CE is an easy to install, VOIP phone system based on the Asterisk PBX. trixbox is designed for home or office use. trixbox CE includes CentOS linux, mysql, and all the tools needed to run a business quality phone system. (formerly asterisk@home)
    Leader badge
    Downloads: 276 This Week
    Last Update:
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  • 2
    Elastix

    Elastix

    Unified Communications Server

    Elastix is a software-based PBX powered by 3CX and based on Debian. An open-standards solution, Elastix is an easy to install and manage UC system compatible with popular IP phones, gateways and SIP trunks. Elastix is complete with unified communications features such as integrated WebRTC video conferencing, chat, presence and softphones and smartphone clients for Windows, Mac, iOS and Android.
    Leader badge
    Downloads: 214 This Week
    Last Update:
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  • 3
    email2fax allows you to send a fax through your Asterisk PBX. Simply write an email with a TIFF or a PDF attachment, and your Asterisk box will fax the attachment to a number you want.
    Downloads: 0 This Week
    Last Update:
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