Alternatives to FreeSWITCH for all platforms with any license

  • 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.

    Open Source Mac Windows Linux

  • 3CX Phone System icon

    3CX Phone System

    3CXPhone is a free VoIP phone available for Windows, iPhone or any Android based smart phone such as Google Nexus, Sony Xperia, Motorola Droid or Samsung Galaxy. Connect 3CXPhone to a VoIP provider or to a VoIP PBX (for example 3CX...

    Freemium Windows Android iPhone

  • Elastix icon

    Elastix

    Elastix is an open source Unified Communications Server software that brings together IP PBX, email, IM, faxing and collaboration functionality. It has a web interface and includes capabilities such as a Call Center software with...

    Freemium Linux

  • 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 answered from a single interface. The agent will only need a web browser Whether we are a contact...

    Commercial Web / Cloud

  • unxsVZ uSIPSwitch icon

    unxsVZ uSIPSwitch

    uSipSwitch a micro sip switch (sip proxy) perfect for edge SIP SBC work (e.g. hosted PBX business). Comes with web console and DNS health tools. Uses modern clustering NoSQL technology for advanced HA.

    Open Source Linux

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  • AsteriskNOW icon

    AsteriskNOW

    AsteriskNOW is the fastest way to get started building custom telephony solutions with Asterisk. Simply download the .iso file, burn it to a CD, drop it into the CD or DVD drive on the target computer and in less than 30 minutes you...

    Free 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: asynchronous TCP, UDP and SCTP, secure communication via TLS for...

    Open Source Linux

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  • Wazo

    Wazo is a unified communications platform based on Asterisk and focused on extensibility.

    Open Source Mac Windows Linux Self-Hosted

    No features added Add a feature
  • 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 includes application-level functionalities. OpenSIPS, as a SIP server, is the core component of any...

    Open Source Linux

    No features added Add a feature
  • 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. Is...

    Open Source Linux

    • Requires "a lot of" appliances to work, you must spend a lot of money to do this. With FreeSwitch you need a PC, OpenVox Card and ready. Guest • Aug 2015 Disagree   Agree
  • VoipSwitch icon

    VoipSwitch

    VoipSwitch is a SoftSwitch System with routing and billing, with SIP protocol support (in older versions also H323). Basic package includes softswitch app, IVR app, configuration manager, webportal and webdialer for end clients. It...

    Commercial Windows

  • PBX in a Flash icon

    PBX in a Flash

    PBX in a Flash is a PBX system based on Asterisk, FreePBX and CentOS, coming as an ISO download. A two stage installation process allows for more flexibility for the installation of the PBX specific components. The Asterisk components...

    Open Source Linux

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  • 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 public landlines and mobile telephones.

    Open Source Mac Windows Linux

  • Flexisip icon

    Flexisip

    SIP proxy server implementation compliant to RFC3261, written in C++11 started in 2011.

    Open Source Linux

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  • FreeSENTRAL icon

    FreeSENTRAL

    FreeSentral is a full IP PBX consisting of a Linux Distribution, an IP PBX and a Web Graphical User Interface for easy configuration

    Open Source Mac Windows Linux

  • Taridium ipbx icon

    Taridium ipbx

    The Taridium ipbx is a complete software-based VoIP PBX system that replaces traditional proprietary hardware PBX. ipbx runs on an open source operating system (Linux) without the need for extra software licenses and is based on the...

    Freemium Linux iPhone

  • 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: Configure additional, non-digium, telephony cards Provisioning...

    Open Source Linux

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  • 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, Webphone, SMS sending, 3D video calls and other functionalities. It makes possible to use PHP VOIP...

    Commercial Windows

  • MiRTA PBX icon

    MiRTA PBX

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

    Commercial Linux

    No features added Add a feature

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