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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
01Apr/21

Development For Kamailio v5.5.x Frozen

April 1, 2021Development News, Newsmiconda

The development for the next major version 5.5.x series is now frozen. The focus will be now on testing the master branch. That means the master branch will not get commits withRead More…

24Mar/21

Troubleshooting Kamailio encrypted SIP traffic

March 24, 2021News, Tips & Tricksmiconda

Ovidiu Sas published a useful blog article about troubleshooting encrypted traffic flowing through Kamailio, it is available at: https://voipembedded.wordpress.com/2021/03/22/troubleshooting-kamailio-encrypted-sip-traffic/ It leverages siptrace module mirroring the SIP traffic to a running sngrep instanceRead More…

23Mar/21

New Module STIRSHAKEN

March 23, 2021Development News, New Modules, Newsmiconda

More than one year ago, Kamailio introduced the secsipid module, a first implementation of STIR/SHAKEN IETF extensions (RFC8224, RFC8588) for asserting caller identity, an updated specification of RFC4474 (implemented also in Kamailio,Read More…

22Mar/21

Freezing Development For v5.5.x Series

March 22, 2021Development News, Newsmiconda

Another development cycle approaches its end and a new Kamailio major version is at the horizon! With this we want to let everybody know that the development of Kamailio v5.5.x series willRead More…

10Mar/21

LRKProxy: New Module For RTP Relaying

March 10, 2021Development News, New Modules, Newsmiconda

A contribution by Mojtaba Esfandiari.S, the LRKProxy module was just merged to Kamailio GIT development branch. It does kernel based RTP relaying with the help of py_lrkproxy application: https://github.com/mojtabaesfandiari/pylrkproxy You can readRead More…

15Feb/21

Kamailio v5.4.4 Released

February 15, 2021News, Releasesmiconda

Kamailio SIP Server v5.4.4 stable is out – a minor release including fixes in code and documentation since v5.4.3. The configuration file and database schema compatibility is preserved, which means you don’t haveRead More…

27Jan/21

Upcoming Online Events – February 2021

January 27, 2021Events, Newsmiconda

The first events in 2021 where you can watch Kamailio related presentations and interact with our community members are: FOSDEM 2021 – February 6-7, 2021 – in the RTC Devroom there isRead More…

18Jan/21

KEMI JavaScript Stubs For Webstorm

January 18, 2021Companion Software, News, Related Productsmiconda

In the users community forum, Nicki Bo Otte has shared his work of creating JavaScript stubs for KEMI exports that enable Jetbrains PHPStorm and Webstorm IDEs to offer auto-completion when writing KamailioRead More…

11Jan/21

SecSIPIDx v1.1.0 Released – STIR/SHAKEN Framework

January 11, 2021Companion Software, News, Related Products, Releasesmiconda

The SecSIPIDx project released v1.1.0. It offers a C API library and a CLI tool (with the option to run as a  REST API server) to facilitate the implementation of STIR/SHAKEN extensionsRead More…

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…

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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
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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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