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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
24Feb/25

Kamailio World 2025 – First Group Of Speakers Announced

February 24, 2025Newsmiconda

The details for the first group of speakers at Kamailio World Conference 2025 have been published: https://kamailioworld.com/k2025/speakers/ We are once again to be able to align a consistent group of renowned speakers,Read More…

17Feb/25

Open Source 6G Networks for Connecting the Unconnected Workshop 2025

February 17, 2025Events, Newsmiconda

Kamailio World is an event that focuses on Kamailio and open source RTC systems, mainly from the industry usage point of view. Should anyone be interested in a scientific-oriented approach, the TUB/AVRead More…

12Feb/25

Maintenance Work For kamailio.org Server On Feb 18, 2025

February 12, 2025News, Project Managementmiconda

There is a planned mainenance work on the infrastructure for the server hosting kamailio.org services (among them: the main website, wiki, mailing lists) on next week, Tuesday, February 18, 2025, to startRead More…

10Feb/25

Sipexer v1.2.0 Released

February 10, 2025Companion Software, Newsmiconda

sipexer v1.2.0 has been released – a moden SIP CLI tool to facilitate testing and monitoring of SIP signalling servers: https://github.com/miconda/sipexer The tool can be used to test or monitor Kamailio instanceRead More…

29Jan/25

Kamailio v6.0.0 Released

January 29, 2025Development News, News, Releasesmiconda

January 29, 2025: Kamailio v6.0.0 is out –  a new major release, bringing new features and improvements added during almost ten months of combined development and testing. The increment of the first versionRead More…

23Jan/25

Kamailio v5.8.5 Released

January 23, 2025Development News, News, Releasesmiconda

Kamailio SIP Server v5.8.5 stable is out – a minor release including fixes in code and documentation since v5.8.4. The configuration file and database schema compatibility is preserved, which means you don’t haveRead More…

06Jan/25

Kamailio World 2025 – Call for Presentations

January 6, 2025Events, Kamailio World, Newsmiconda

We would like to announce that Call for Presentations at Kamailio World 2025 is now open. You can submit your proposal or see more details at: https://www.kamailioworld.com/k2025/call-for-speakers/ The 13th edition of theRead More…

24Dec/24

Merry Christmas And Happy Winter Holidays 2024-2025!

December 24, 2024Newsmiconda

Another end of a year is around the corner, one that continued to challenge the world more than expected. Let’s hope again for the good and peace everywhere! Relying on the friendlyRead More…

16Dec/24

Development For Kamailio v6.0.x Is Frozen

December 16, 2024Development News, Newsmiconda

The formal notification that the development for the next major version 6.0.0 is now frozen. The focus has to be on testing the git master branch. Also, the master branch should notRead More…

05Dec/24

Kamailio World 2025: Dates And Location

December 5, 2024Events, Kamailio World, Newsmiconda

A short announcement to inform that the dates for next Kamailio World Conference have been set to May 12-13, 2025, the event to take place again in Berlin, Germany. It will beRead More…

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News

  • Kamailio v6.0.4 Released November 6, 2025
  • Kamailio World 2026: Dates And Location November 5, 2025
  • Kamailio Developers Meeting, Dec 8-9, 2025, in Dusseldorf September 25, 2025
  • Kamailio v6.0.3 Released September 10, 2025
  • Kamailio v6.0.2 Released June 25, 2025
  • Kamailio v5.7.7 Released May 21, 2025
  • Donating To Kamailio Project April 7, 2025
DONATE TO KAMAILIO

– Download latest release –

6.0.4

(Nov 06, 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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