Alternatives to 3CX Phone System for all platforms 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

    Low level Add a feature

    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 Windows Linux Hangouts

    Portable Add a feature

    YakYak icon
    • YakYak is a client for Google Hangouts, while 3CX is a VoIP call center system Guest • Apr 2018 • 3 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

    Voice Call Add a feature

    freepbx icon

  • MicroSIP

    MicroSIP is a free portable SIP softphone for Windows based on PJSIP stack. It allowing to do high quality VoIP calls (P2P or on regular telephones) via open SIP...

    Free Open Source Windows PortableApps.com

    No features added Add a feature

    MicroSIP 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

  • Telephone

    Telephone is a VoIP program which allows you to make phone calls over the internet. It can be used to call regular phones via any appropriate SIP provider, including...

    Free Open Source Mac OS X

    No features added Add a feature

    Telephone 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

  • Phoner

    Softphone for VoIP, CAPI und TAPI. This application enables voice connections to landline, cellular network and VoIP. Phoner can be used as softphone on stationary and...

    Free Windows

    No features added Add a feature

    Phoner 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

    Share your screen Add a feature

    Spreed icon

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