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Continuous Development Since 2001
SER-Kamailio - the project that shaped the evolution of open source real time communications
Powering Open Real Time Communications
SIP Load Balancer, IP Telephony Engine, Least Cost Routing, SIP Firewall, Edge Proxy, SBC, Registrar and Location Service, Instant Messaging and Presence, MSRP, WebRTC, IPv4-IPV6, IMS, VoLTE
24Dec/20

Merry Christmas and Happy Holidays 2020-2021!

December 24, 2020Newsmiconda

Another end of a year is around the corner, one that was not easy at all for the entire world, probably the most challenging so far for many of us. Thanks toRead More…

21Dec/20

Kamailio v5.3.8 released

December 21, 2020News, Releaseshenning

Kamailio SIP Server v5.3.8 stable has been released – a minor release including fixes in code and documentation since v5.3.7. The configuration file and database schema compatibility is preserved, which means youRead More…

14Dec/20

Kamailio v5.4.3 Released

December 14, 2020News, Releasesmiconda

Kamailio SIP Server v5.4.3 stable is out – a minor release including fixes in code and documentation since v5.4.2. The configuration file and database schema compatibility is preserved, which means you don’t haveRead More…

10Dec/20

Emacs Syntax Highlighting For Kamailio.cfg

December 10, 2020Companion Software, Newsmiconda

Following the recent discussion on sr-users mailing list related to extensions available for various editors (e.g., vim, atom, vscode) that add syntax highlighting for kamailio.cfg, Juha Heinenen contributed the initial version ofRead More…

01Dec/20

VSCode Syntax Highlighting For Kamailio.cfg – v1.0.8

December 1, 2020Companion Software, Newsmiconda

The extension for Visual Studio Code (aka VSCode – the popular free text editor from Microsoft) that implements syntax highlighting for kamailio.cfg got several updates since it was first released more thanRead More…

20Nov/20

Next Online Devel Meeting – Nov 25, 2020

November 20, 2020Development News, Events, Newsmiconda

In order to plan the roadmap to next major release, it is time to organize another online devel meeting, so the developers and community members can syncronize and plan what should beRead More…

18Nov/20

Browser URL Expander For Kamailio Resources

November 18, 2020Companion Software, Newsmiconda

Those spending a lot of time navigating through Kamailio project web resources, the KSR-URL-Expander browser extension could be useful. It works with all major browsers based on Chromium (e.g., Chrome, Brave) andRead More…

04Nov/20

Kamailio JSONRPC Client With HTTP REST Interface

November 4, 2020Companion Software, Newsmiconda

Recently, Emmanuel Schmidbauer announced to Kamailio matrix chat channel a tiny REST API server to abstract JSONRPC layer of Kamailio RPC commands. It leverages Kamailio jsonrpcs and xhttp modules, therefore the applicationRead More…

02Nov/20

Kamailio v5.3.7 Released

November 2, 2020News, Releasesmiconda

Kamailio SIP Server v5.3.7 stable is out – a minor release including fixes in code and documentation since v5.3.6. The configuration file and database schema compatibility is preserved, which means you don’t haveRead More…

27Oct/20

Kamailio v5.4.2 Released

October 27, 2020Newsmiconda

Kamailio SIP Server v5.4.2 stable is out – a minor release including fixes in code and documentation since v5.4.1. The configuration file and database schema compatibility is preserved, which means you don’t haveRead More…

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News

  • Kamailio v6.0.2 Released June 25, 2025
  • Kamailio v5.7.7 Released May 21, 2025
  • Donating To Kamailio Project April 7, 2025
  • Kamailio v5.8.6 Released March 20, 2025
  • Kamailio World 2025 – A Preview Of Sessions March 19, 2025
  • Kamailio v6.0.1 Released March 10, 2025
  • Kamailio World 2025 – First Group Of Speakers Announced February 24, 2025
DONATE TO KAMAILIO

– Download latest release –

6.0.2

(June 25, 2025)

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Short History

The initial name of the project was SIP Express Router (aka SER), started in 2001 by Fraunhofer Fokus Research Institute and released under GPLv2 in 2002. In 2005, OpenSER project spawned from SER and had to change the name to Kamailio in summer of 2008 due to trademark claims. During the autumn of 2008, Kamailio and SER teams decided to join back the projects and use further the Kamailio name.

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