Alternatives to 3CX Phone System for Linux with any license

  • 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

    Asterisk icon
  • Zoiper

    Zoiper IAX & SIP multilanguage and multiplatform (Windows, Linux and Mac OS X) softphone is a VoIP soft client, meant to work with any IP-based communications...

    Free Personal $ $ $ Mac OS X Windows Linux Web Android ... iPhone Windows Phone

    No features added Add a feature

    Zoiper icon
  • YakYak

    What does it do: * Send/receive chat messages * Create/change conversations (rename, add people) * Leave/delete conversation * Notifications * ...

    Free Open Source Mac OS X Windows Linux Hangouts

    YakYak icon
    • YakYak is a client for Google Hangouts, while 3CX is a VoIP call center system Guest • Apr 2018 • 2 agrees and 0 disagrees Disagree   Agree
  • 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

    freepbx icon
  • FreeSWITCH

    FreeSWITCH is a scalable open source cross-platform telephony platform designed to route and interconnect popular communication protocols using audio, video, text or any...

    Free Open Source Mac OS X Windows Linux BSD

    No features added Add a feature

    FreeSWITCH 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...

    Free Open Source Linux

    No features added Add a feature

    Yate - Yet Another Telephony Engine icon
  • XiVO

    XiVO is an IP-PBX, a unified communications platform that connects phones on a local or private network with other networks such as public landlines and mobile...

    Free Open Source Mac OS X Windows Linux

    No features added Add a feature

    XiVO icon
  • Starfish PBX

    Starfish PBX aims to be an open source alternative to Digium’s Switchvox. The goal is to have a software equivalent to which we can add additional functionality like: ...

    Free Open Source Linux

    No features added Add a feature

  • Spreed

    Spreed is the worldwide unified web conferencing service offering integrated web and telephone conferencing. It is based on Flash Player. Free service includes 3...

    Commercial Mac OS X Windows Linux Web

    Spreed icon
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  • 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

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    Kamailio icon
  • sipXecs

    A SIP based implementation of a PBX / unified communications system.

    Free Open Source Linux

    No features added Add a feature

Platforms

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