The Best 10 FusionPBX Alternatives

  • Asterisk icon

    Asterisk

    Asterisk is free software that transforms a computer into a communication server. Asterisk lets you build applications like PBX, VoIP gateway, IVR and ACD.

    Free Open Source Mac OS X Windows Linux

  • Elastix icon

    Elastix

    Elastix is an open source Unified Communications Server software that brings together IP PBX, email, IM, faxing and collaboration functionality.

    Freemium Linux

  • Yate - Yet Another Telephony Engine icon

    Yate - Yet Another Telephony Engine

    Yate is a softswitch (concept of separating the network hardware from network software). It supports VoIP protocols: H.323, SIP, IAX1, IAX2, RTP. For the plain old telephony systems (PSTN) it supports ISDN BRI and PRI.

    Free Open Source Linux

  • freepbx icon

    freepbx

    FreePBX is a web-based open source GUI (graphical user interface) that controls and manages Asterisk (PBX), an open source communication server.

    Free Open Source Linux

  • Kamailio icon

    Kamailio

    Kamailio® (successor of former OpenSER and SER) is an open source SIP server released under GPL, able to handle thousands of call setups per second. Among features:...

    Free Open Source Linux

  • Thirdlane Multi Tenant PBX icon

    Thirdlane Multi Tenant PBX

    Thirdlane® Multi Tenant PBX Platform is a reliable, cost-effective Multi Tenant IP PBX and Unified Communications software platform with support for voice...

    Commercial Linux

  • MiRTA PBX icon

    MiRTA PBX

    The most advanced interface for managing Asterisk PBX with Multitenant and Realtime capabilities.

    Commercial Linux