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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
14Sep/13

New Developer: Charles Chance

September 14, 2013Developer Presentations, Newscchancemiconda

Kamailio project is glad to announce that a new person got developer GIT write access to repository: Charles Chance. He is for long time in the community, sending patches in the pastRead More…

02Sep/13

Next Kamailio Development IRC Meeting

September 2, 2013Newsmiconda

We are considering to have a new IRC devel meeting to plan a bit the development for the near future (among them, nail down goals and dates for next major release). TheRead More…

26Aug/13

Astricon 2013 – The 10 years celebration

August 26, 2013Events, Newsasterisk, astriconmiconda

Astricon, the Asterisk conference, celebrates big this year with its tenth edition, event to take place in Atlanta, GA, USA, during October 8-10, 2013. Using Kamailio and Asterisk is something very common,Read More…

23Aug/13

New Module: rtpproxy-ng – WebRTC to RTP

August 23, 2013Module Updates, New Modules, Newsrtpproxy-ng, sipwisemiconda

The GIT master branch of Kamailio includes now a new module – rtpproxy-ng. It is designed to be next generation RTP relay control protcol, using bencode as the base for formatting controlRead 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…

29Jul/13

IETF87 in Berlin

July 29, 2013Events, Newsietfmiconda

This week is the 87th IETF meeting in Berlin, Germany, with over 1500 participants looking to move one step further the standardization specifications for Internet related protocols. A part of it isRead More…

28Jul/13

Kamailio – five years later

July 28, 2013Newsblog, micondamiconda

Five years ago we had to rename OpenSER to Kamailio and we continue with it since then. It’s very unlikely that a new rename or other similar disturbance will happen, we ownRead More…

18Jul/13

Documentation on charging in IMS

July 18, 2013Companion Software, News, Related Productsbilling, ims, mobicentsCarsten Bock

There is a new small article by Carsten Bock on how billing is done in IMS. It is available here: Understanding Charging in the IP-Multimedia-Subsystem (IMS) We are working on integrating KamailioRead More…

18Jul/13

Cluecon – August 6-8, 2013 in Chicago

July 18, 2013Events, Newsclueconmiconda

This year at Cluecon conference, August 6-8, in Chicago, USA, two of the Kamailio Development team will present about specific features of our project. Other people from community have presentations that willRead More…

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News

  • 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
  • Maintenance Work For kamailio.org Server On Feb 18, 2025 February 12, 2025
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6.0.0

(Jan 29, 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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