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Category Archives: Releases

20Dec/13

Kamailio v4.0.5 Released

December 20, 2013News, Releasesmiconda

Kamailio SIP Server v4.0.5 stable is out – a minor release including fixes in code and documentation since v4.0.0 – configuration file and database compatibility is preserved. Kamailio (former OpenSER) v4.0.5 isRead More…

19Dec/13

Kamailio v3.3.6 Released

December 19, 2013News, Releases3.3, releasesmiconda

Kamailio SIP Server v3.3.6 stable is out – a minor release including fixes in code and documentation since v3.3.5 – configuration file and database compatibility is preserved. Kamailio (former OpenSER) v3.3.6 isRead More…

04Dec/13

Kamailio v4.1.0 Released

December 4, 2013New Modules, News, Releases4.1, releasesmiconda

December 04, 2013: Kamailio v4.1.0 is out –  a new major release, collecting new features and improvements added during seven months of development and two months of testing. In short, this majorRead More…

08Oct/13

Development for v4.1.0 is Frozen

October 8, 2013News, Releases4.1miconda

The development for next major release of Kamailio, v4.1.0, has been frozen last midnight. No new features will be added for the next one month and a half. The focus now isRead More…

02Oct/13

Kamailio v4.0.4 Released

October 2, 2013News, Releases4.0, 4.0.4miconda

Kamailio SIP Server v4.0.4 stable is out – a minor release including fixes in code and documentation since v4.0.0 – configuration file and database compatibility is preserved. Kamailio (former OpenSER) v4.0.4 isRead More…

15Aug/13

Kamailio v4.0.3 Released

August 15, 2013News, Releases4.0, 4.0.4, releasesmiconda

Kamailio SIP Server v4.0.3 stable is out – a minor release including fixes in code and documentation since v4.0.0 – configuration file and database compatibility is preserved. Kamailio (former OpenSER) v4.0.3 isRead More…

12Aug/13

Kamailio v3.3.5 Released

August 12, 2013News, Releases3.3, 3.3.5, releasesmiconda

Kamailio SIP Server v3.3.5 stable is out – a minor release including fixes in code and documentation since v3.3.4 – configuration file and database compatibility is preserved. Kamailio (former OpenSER) v3.3.5 isRead More…

12Jun/13

Kamailio v4.0.2 Released

June 12, 2013News, Releases4.0, 4.0.2, releasemiconda

Kamailio SIP Server v4.0.2 stable is out – a minor release including fixes in code and documentation since v4.0.0 – configuration file and database compatibility is preserved. Kamailio (former OpenSER) v4.0.2 isRead More…

25Apr/13

Kamailio v4.0.1 Released

April 25, 2013News, Releases4.0.1miconda

Kamailio SIP Server v4.0.1 stable is out – a minor release including fixes in code and documentation since v4.0.0 – configuration file and database compatibility is preserved. Kamailio (former OpenSER) v4.0.1 isRead More…

12Mar/13

Packages for v4.0.0

March 12, 2013News, Releases4.0, linux, releasesmiconda

RPM packages for Kamailio v4.0.0 are available now for several Linux distributions: Centos 5.5 and 6, RedHat 5 and 6, Fedora 16, 17 and 18, OpenSuse 12.1, 12.2 and 12.3.

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News

  • 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
  • Open Source 6G Networks for Connecting the Unconnected Workshop 2025 February 17, 2025
DONATE TO KAMAILIO

– Download latest release –

6.0.1

(Mar 10, 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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