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, Paltalk and FreeSWITCH.

3CX alternatives are mainly Video Calling Apps but may also be Instant Messengers or Phone Systems. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of 3CX.

3CX

Freemium • Proprietary

The 3CX Phone System is the software-based private branch exchange (PBX) Phone system based on the SIP (Session Initiation...

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Asterisk
Is this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
30 Asterisk alternatives
Asterisk is free software that transforms a computer into a communication server. Asterisk lets you build applications like PBX, VoIP gateway, IVR and ACD.
- - Asterisk is the most popular Windows, Mac & Linux alternative to 3CX.
- - Asterisk is the most popular Open Source & free alternative to 3CX.
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Asterisk Features
Low level
Voice Chat
SIP
Opinions about Asterisk as a Alternative to 3CX
Almost everyone thinks Asterisk is a great 3CX alternative.
FreePBX
Is this is a good alternative?
Yes
No
Free • Open Source
Linux
22 FreePBX alternatives
FreePBX is a web-based open source GUI (graphical user interface) that controls and manages Asterisk (PBX), an open source communication server. FreePBX is licensed under the GNU General Public License (GPL), an open source license.
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FreePBX Features
1. VoiP CallsFreePBX allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
SIP
YakYak
Is this is a good alternative?
Yes
No
Free • Open Source
Instant Messenger
Mac
Windows
Linux
Hangouts
98 YakYak alternatives
Desktop client for Google Hangouts.
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YakYak Features
1. PortableYakYak can be used from a USB stick or similar with no prior installation.
Comments about YakYak as a Alternative to 3CX
This alternative is disputed. YakYak is still a legitimate 3CX alternative, but it might have issues that some users think are important.
Guest
It is not a phone system.
Negative comment •
0

Guest
YakYak is a client for Google Hangouts, while 3CX is a VoIP call center system
Negative comment •
12
Paltalk
Is this is a good alternative?
Yes
No
Freemium • Proprietary
Video Calling App
Instant Messenger
Mac
Windows
Online
Android
iPhone
Kindle Fire
62 Paltalk alternatives
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.
- - Paltalk is the most popular Web-based, Android & iPhone alternative to 3CX.
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Paltalk Features
Voice Chat
FreeSWITCH
Is this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
BSD
24 FreeSWITCH alternatives
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.
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FreeSWITCH Features
Voice Chat
WebCall
Is this is a good alternative?
Yes
No
Free • Open Source
Video Calling App
Android
Self-Hosted
F-Droid
50 WebCall alternatives
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.
- - WebCall is the most popular Self-Hosted alternative to 3CX.
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WebCall Features
1. VoiP CallsWebCall allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
Peer-To-Peer
Yate - Yet Another Telephony Engine
Is this is a good alternative?
Yes
No
Free • Open Source
Linux
30 Yate - Yet Another Telephony Engine alternatives
Yate is a softswitch (concept of separating the network hardware from network software).
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Yate - Yet Another Telephony Engine Features
Voice Chat
SIP
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Wazo
Is this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
Self-Hosted
37 Wazo alternatives
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...
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Wazo Features
1. Extensible by Plugins/ExtensionsWazo can be extended with add-ons, plugins and extensions.
Web-Based
SIP
Kamailio
Is this is a good alternative?
Yes
No
Free • Open Source
Linux
19 Kamailio alternatives
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...
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Kamailio Features
1. VoiP CallsKamailio allows you to make voice calls over Internet using the Voice over Internet Protocol (VoIP).
SIP
Voice Chat
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Spreed
Is this is a good alternative?
Yes
No
Freemium • Proprietary
Web Conferencing Tool
Mac
Windows
Linux
Online
143 Spreed alternatives
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.
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Spreed Features
1. PDF annotationSpreed support PDF Annotation for highlighting, notes etc
2. Screen SharingYou can use Spreed to share your screen with your colleages or friends.
Based on Flash Player
Integrated File Sharing
Interactive Whiteboard
Video Conferencing
XiVO
Is this is a good alternative?
Yes
No
Free • Open Source
Mac
Windows
Linux
31 XiVO alternatives
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.
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XiVO Features
Voice Chat
sipXecs
Is this is a good alternative?
Yes
No
Free • Open Source
Linux
14 sipXecs alternatives
A SIP based implementation of a PBX / unified communications system.
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sipXecs Features
SIP
Voice Chat
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