Alternatives to 3CX Phone System for all platforms with any license

  • Jitsi icon

    Jitsi

    Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports protocols...

    Open Source Mac Windows Linux Web / Cloud Android BSD

  • Linphone icon

    Linphone

    Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the internet...

    Open Source Mac Windows Linux Web / Cloud Windows Mobile Android ... iPhone Android Tablet Windows Phone iPad Xfce

  • Asterisk icon

    Asterisk

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

    Open Source Mac Windows Linux

  • YakYak icon

    YakYak

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

    Open Source Mac Windows Linux

  • Telephone 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...

    Open Source Mac

  • MicroSIP 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...

    Open Source Windows

  • FreeSWITCH icon

    FreeSWITCH

    FreeSWITCH is a scalable open source cross-platform telephony platform designed to route and interconnect popular communication...

    Open Source Mac Windows Linux BSD

  • Phoner icon

    Phoner

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

    Free Windows

  • freepbx icon

    freepbx

    The FreePBX EcoSystem has developed over the past decade to be the most widely deployed Open Source PBX platform in use across the...

    Free Linux

  • Paltalk icon

    Paltalk

    Paltalk is an instant messaging service that enables users to communicate via internet chat, voice and video chat. It offers chat...

    Freemium Mac Windows Web / Cloud Android iPhone Kindle Fire

  • YateClient icon

    YateClient

    YateClient is an Instant Messenger and a SoftPhone.

    Free Mac Windows Linux

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  • Zent.IO icon

    Zent.IO

    Zent.IO is a Contact Center Cloud Software Multichannel that unify chat, phone and e-mail. All the communication channels will be...

    Commercial Web / Cloud

  • Spreed icon

    Spreed

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

    Commercial Mac Windows Linux Web / Cloud

  • WorldChat.tv icon

    WorldChat.tv

    Talk in all the languages of the world on WorldChat.tv Chat Free on All Nations...

    Free Web / Cloud

  • 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...

    Open Source Linux

  • Acrobits Softphone icon

    Acrobits Softphone

    Acrobits Softphone, an app for entry into the world of SIP.

    Commercial Android iPhone

  • Mizutech VoIP Server icon

    Mizutech VoIP Server

    A robust SIP/H.323/WebRTC softswitch for Windows with a long list of features including PBX and billing.

    Free Windows

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  • VoipSwitch icon

    VoipSwitch

    VoipSwitch is a SoftSwitch System with routing and billing, with SIP protocol support (in older versions also H323). Basic package...

    Commercial Windows

  • Voip Stunt icon

    Voip Stunt

    VoipStunt is a free program that uses the latest technology to bring free and high-quality voice communications to people all over the...

    Free Windows

  • XiVO 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...

    Open Source Mac Windows Linux

  • sipXecs

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

    Open Source Linux

  • 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...

    Open Source Linux

  • opensips icon

    opensips

    OpenSIPS (Open SIP Server) is a mature Open Source implementation of a SIP server. OpenSIPS is more than a SIP proxy/router as it...

    Open Source Linux

  • Ozeki Phone Systems

    Ozeki Phone System XE is a Software PBX telephony platform for Windows. Ozeki enables your applications to connect PBX and access IVR...

    Commercial Windows

  • MiRTA PBX icon

    MiRTA PBX

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

    Commercial Linux

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