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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
23Feb/24

Upcoming Events – Winter Spring 2024

February 23, 2024Events, Newsmiconda

After Fosdem and Astricon that happened during February 2024, a series of events follow where you can meet Kamailio developers and community members: Mobile World Congress, Barcelona, Spain – Feb 26-29, 2024Read More…

21Feb/24

Kamailio World 2024: Selection Of Presentations

February 21, 2024Events, Kamailio World, Newsmiconda

A selection of accepted presentations and speakers has been published by Kamailio World Conference web site. The sessions cover topics from testing, scalability and security to accounting, billing, webrtc as well asRead More…

02Feb/24

Development For Kamailio v5.8.x Is Frozen

February 2, 2024Newsmiconda

The formal notification that the development for the next major version 5.8.0 is now frozen. The focus has to be on testing the git master branch. Also, the master branch should notRead More…

18Jan/24

Kamailio v5.7.4 Released

January 18, 2024Events, Kamailio World, Newsmiconda

Kamailio SIP Server v5.7.4 stable is out – a minor release including fixes in code and documentation since v5.7.3. The configuration file and database schema compatibility is preserved, which means you don’t haveRead More…

20Dec/23

Kamailio World 2024: Dates And Location

December 20, 2023Newsmiconda

A short announcement to inform that the dates for next Kamailio World Conference have been set to April 18-19, 2024, the event to take place again in Berlin, Germany. It will beRead More…

28Nov/23

Online Devel Meeting – Dec 05, 2023, 15:00UTC

November 28, 2023Development News, Events, Newsmiconda

To summarise what happened a few weeks ago at the last on-site devel meeting in Dusseldorf and plan the next steps for the project, we are planning an online development meeting onRead More…

23Nov/23

Kamailio v5.6.5 Released

November 23, 2023Development News, News, Releasesmiconda

Kamailio SIP Server v5.6.5 stable is out – a minor release including fixes in code and documentation since v5.6.4. The configuration file and database schema compatibility is preserved, which means you don’t haveRead More…

17Nov/23

Kamailio v5.7.3 Released

November 17, 2023News, Releasesmiconda

Kamailio SIP Server v5.7.3 stable is out – a minor release including fixes in code and documentation since v5.7.2. The configuration file and database schema compatibility is preserved, which means you don’t haveRead More…

30Oct/23

SecSIPIDx v1.3.1 Released – STIR/SHAKEN Library And CLI Tool

October 30, 2023Companion Software, News, Releasesmiconda

The SecSIPIDx project released v1.3.1. It offers Go and C API libraries as well as a CLI tool (with the option to run as a REST API server) to facilitate the implementationRead More…

11Oct/23

Kamailio Developers Meeting, Nov 7-8, 2023, in Dusseldorf

October 11, 2023Development News, Events, Newsmiconda

Kamailio SIP Server project is organizing another meeting of its developers during November 7-8, 2023, hosted again by sipgate.de in Dusseldorf, Germany. The event is intended to facilitate the interaction between Kamailio developersRead 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
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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