Free 3CX Alternatives

The best free alternative to 3CX is Asterisk, which is also Open Source. If that doesn't suit you, our users have ranked more than 25 alternatives to 3CX and many of them is free so hopefully you can find a suitable replacement. Other interesting free alternatives to 3CX are FreePBX, YakYak, WebCall and FreeSWITCH.

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3CX alternatives are mainly Video Calling Apps but may also be Instant Messengers or Group Chat Apps.  Filter by these or use the filter bar below if you want a narrower list of alternatives or looking for a specific functionality of 3CX.
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The 3CX Phone System is the software-based private branch exchange (PBX) Phone system based on the SIP (Session Initiation Protocol) standard and enables extensions to make calls via the public switched telephone network...

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3CX alternatives page was last updated Sep 30, 2022
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  1. Asterisk icon
    Asterisk icon

    Asterisk

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

    32 Asterisk alternatives
    Asterisk screenshot 1

    License model

    • Free • Open Source

    Platforms

    • Mac
    • Windows
    • Linux

    Asterisk Features

    1.  Low level
    2.  Voice Chat
    3.  SIP
    Asterisk screenshot 1
    Asterisk screenshot 2
    Asterisk icon3CX Icon

    Asterisk VS 3CX

    Is Asterisk a good alternative to 3CX?
     

    • Almost everyone thinks Asterisk is a great 3CX alternative.

    • Asterisk is the most popular Open Source & free alternative to 3CX.

    • Asterisk is Free and Open Source3CX is Freemium and Proprietary
  2. FreePBX icon
    FreePBX icon

    FreePBX

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

    22 FreePBX alternatives
    FreePBX screenshot 1

    License model

    • Free • Open Source

    Platforms

    • Linux

    FreePBX Features

    1.  VoiP Calls
    2.  SIP
    FreePBX icon3CX Icon

    FreePBX VS 3CX

    Is FreePBX a good alternative to 3CX?
     
  4. YakYak icon
    YakYak icon

    YakYak

     21 likes
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    Desktop client for Google Hangouts.

    100 YakYak alternatives
    YakYak screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Hangouts

    YakYak Features

    1.  Portable
    YakYak screenshot 1
    YakYak screenshot 2
    Discontinued

    The last version was released in June 2021.

    YakYak icon3CX Icon

    YakYak VS 3CX

    Is YakYak a good alternative to 3CX?
     
    Comments about YakYak as an Alternative to 3CX
     
    Guest

    YakYak is a client for Google Hangouts, while 3CX is a VoIP call center system

    Negative comment •Apr 3, 2018
    12
    3CX Icon
    YakYak icon

    • This alternative is disputed. YakYak is a legitimate 3CX alternative, but it might have issues that some users think are important.

    • YakYak is Free and Open Source3CX is Freemium and Proprietary
  5. WebCall icon
    WebCall icon

    WebCall

     2 likes
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    WebCall offers free high-quality audio and video telephony based on WebRTC 1.0. All data is delivered from peer to peer. The P2P links are always end-to-end encrypted. WebCall provides web applications for caller and callee.

    50 WebCall alternatives
    WebCall screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Android
    • Self-Hosted
    • F-Droid

    WebCall Features

    1.  VoiP Calls
    2.  Peer-To-Peer
    WebCall screenshot 1
    WebCall screenshot 2
    +2
    WebCall screenshot 3
    WebCall icon3CX Icon

    WebCall VS 3CX

    Is WebCall a good alternative to 3CX?
     

    • WebCall is the most popular Self-Hosted alternative to 3CX.

    • WebCall is Free and Open Source3CX is Freemium and Proprietary
  6. FreeSWITCH icon
    FreeSWITCH icon

    FreeSWITCH

     15 likes
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    FreeSWITCH is a scalable open source cross-platform telephony platform designed to route and interconnect popular communication protocols using audio, video, text or any other form of media. It was created in 2006 to fill the void left by proprietary commercial solutions.

    23 FreeSWITCH alternatives
    FreeSWITCH screenshot 1

    License model

    • Free • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • BSD

    FreeSWITCH Features

    1.  Voice Chat
    2.  Support ZRTP
    FreeSWITCH screenshot 1
    FreeSWITCH icon3CX Icon

    FreeSWITCH VS 3CX

    Is FreeSWITCH a good alternative to 3CX?
     
  7. Paltalk icon
    Paltalk icon

    Paltalk

     8 likes
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    Paltalk is an instant messaging service that enables users to communicate via internet chat, voice and video chat. It offers chat rooms and the ability for users to create their own public virtual chat room.

    62 Paltalk alternatives
    Paltalk screenshot 1

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Online
    • Android
    • iPhone
    • Kindle Fire

    Paltalk Features

    1.  Voice Chat
    Paltalk screenshot 1
    Paltalk screenshot 2
    +3
    Paltalk screenshot 3
    Paltalk icon3CX Icon

    Paltalk VS 3CX

    Is Paltalk a good alternative to 3CX?
     
  9. Yate - Yet Another Telephony Engine icon
    Yate - Yet Another Telephony Engine icon

    Yate - Yet Another Telephony Engine

     7 likes
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    Yate is a softswitch (concept of separating the network hardware from network software).

    30 Yate - Yet Another Telephony Engine alternatives

    License model

    • Free • Open Source

    Platforms

    • Linux

    Yate - Yet Another Telephony Engine Features

    1.  Voice Chat
    2.  SIP
    Yate - Yet Another Telephony Engine icon3CX Icon

    Yate - Yet Another Telephony Engine VS 3CX

    Is this a good alternative to 3CX?
     
  10. Wazo icon
    Wazo icon

    Wazo

     9 likes
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    Wazo is mainly an IPBX that provides communication services such audio, video, and instant messaging based on the use of standard network technologies such as the TCP/IP protocol. It is interoperable with most market telephony systems and gives users access to flexible and...

    36 Wazo alternatives
    Wazo screenshot 1

    License model

    • Free • Open Source

    Platforms

    • Mac
    • Windows
    • Linux
    • Self-Hosted

    Wazo Features

    1.  Extensible by Plugins/Extensions
    2.  Web-Based
    3.  SIP
    Wazo screenshot 1
    Wazo icon3CX Icon

    Wazo VS 3CX

    Is Wazo a good alternative to 3CX?
     
  11. Kamailio icon
    Kamailio icon

    Kamailio

     4 likes
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    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 VoIP (voice, video); WebSocket support for...

    19 Kamailio alternatives

    License model

    • Free • Open Source

    Platforms

    • Linux

    Kamailio Features

    1.  VoiP Calls
    2.  SIP
    3.  Voice Chat
    Kamailio icon3CX Icon

    Kamailio VS 3CX

    Is Kamailio a good alternative to 3CX?
     
  12. Spreed icon
    Spreed icon

    Spreed

     8 likes
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    Spreed is the worldwide unified web conferencing service offering integrated web and telephone conferencing. It is based on Flash Player. Free service includes 3 attendees and max 1.5h meetings. Single events or monthly service can be purchased.

    138 Spreed alternatives
    Conference Interface

    License model

    • Freemium • Proprietary

    Application types

    Platforms

    • Mac
    • Windows
    • Linux
    • Online

    Spreed Features

    1.  PDF annotation
    2.  Screen Sharing
    3.  Based on Flash Player
    4.  Integrated File Sharing
    5.  Interactive Whiteboard
    6.  Video Conferencing
    Spreed icon3CX Icon

    Spreed VS 3CX

    Is Spreed a good alternative to 3CX?
     
  13. XiVO icon
    XiVO icon

    XiVO

     4 likes
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    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.

    31 XiVO alternatives
    XiVO screenshot 1

    License model

    • Free • Open Source

    Application type

    Platforms

    • Mac
    • Windows
    • Linux

    XiVO Features

    1.  Voice Chat
    XiVO screenshot 1
    XiVO screenshot 2
    +3
    XiVO screenshot 3
    XiVO icon3CX Icon

    XiVO VS 3CX

    Is XiVO a good alternative to 3CX?
     

  14. sipXecs

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

    14 sipXecs alternatives

    License model

    • Free • Open Source

    Platforms

    • Linux

    sipXecs Features

    1.  SIP
    2.  Voice Chat
    3CX Icon

    sipXecs VS 3CX

    Is sipXecs a good alternative to 3CX?
     
12 of 22 3CX alternatives