Kamailio Alternatives

Kamailio is described as '® (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' and is an app in the social & communications category. There are more than 10 alternatives to Kamailio for a variety of platforms, including Linux, Windows, Mac, Android and Self-Hosted apps. The best Kamailio alternative is 3CX, which is free. Other great apps like Kamailio are Asterisk, FreePBX, FreeSWITCH and FusionPBX.

Kamailio alternatives page was last updated

Kamailio

Free • Open Source

Kamailio® (successor of former OpenSER and SER) is an open source SIP server released under GPL, able to handle...

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3CX
Is this is a good alternative?
Yes
No
Freemium • Proprietary
Mac
Windows
Linux
Online
Android
iPhone
Android Tablet
iPad
Self-Hosted
Microsoft Exchange Server
Raspberry Pi
Microsoft Office Suite
34 3CX alternatives
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 (PSTN) or via Voice over Internet Protocol (VoIP) services...
- - 3CX is the most popular Web-based, Windows, Android & Mac alternative to Kamailio.
- - 3CX is the most popular free alternative to Kamailio.
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3CX Features
Multiple languages
Remote Work
Integrated File Sharing
Integrated Chat
Live polling
Video Conferencing
Voice Chat
SIP
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 Open Source alternative to Kamailio.
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Asterisk Features
Low level
Voice Chat
SIP
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
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
FusionPBX
Is this is a good alternative?
Yes
No
Free • Open Source
Linux
BSD
12 FusionPBX alternatives
FusionPBX is an open source FreeSWITCH GUI. FusionPBX can be used as a high available single or domain based multi-tenant PBX, carrier grade switch, call center server, fax server, voip server, voicemail server, conference server, voice application server, appliance framework...
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FusionPBX Features
Graphical User Interface
Voice Chat
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Yate - Yet Another Telephony Engine
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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
36 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
Elastix
Is this is a good alternative?
Yes
No
Freemium • Proprietary
Linux
22 Elastix alternatives
More than a PBX, with Elastix you can communicate with your customers through voice, video and live chat from anywhere. Built-in video conferencing, website live chat and smartphone apps, ensure your agents remain productive through one unified mobile solution.
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Elastix Features
Voice Chat
unxsVZ uSIPSwitch
Is this is a good alternative?
Yes
No
Free • Open Source
Linux
5 unxsVZ uSIPSwitch alternatives
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.
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unxsVZ uSIPSwitch Features
SIP
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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MiRTA PBX
Is this is a good alternative?
Yes
No
Paid • Proprietary
Linux
13 MiRTA PBX alternatives
The MiRTA PBX is an interface written in PHP using Mysql as backend to manage a multitenant PBX built over the Asterisk Open Source PBX. An easy to use interface allows you to manage one or more Asterisk PBX in a multi tenant, load sharing and high availability configuration.
- - MiRTA PBX is the most popular commercial alternative to Kamailio.
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MiRTA PBX Features
SIP
Virtual PBX
Flexisip
Is this is a good alternative?
Yes
No
Free • Open Source
Linux
4 Flexisip alternatives
SIP proxy server implementation compliant to RFC3261, written in C++11 started in 2011.
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Flexisip Features
SIP
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