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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
27Jul/20

ClueCon Weekly – Kamailio Updates – July 2020

July 27, 2020Events, Newsmiconda

A few weeks ago it was recorded a new edition of ClueCon Weekly about what is new in Kamailio project, featuring the host David Duffett, community manager at Signalwire, and the guestRead More…

11Jul/20

CommCon Virtual 2020

July 11, 2020Events, Newsmiconda

Next week, starting on Monday, July 13 and lasting till Friday, July 17, Dan Jenkins  organises the 3rd edition of CommCon, an annual conference about real time communications. It used to takeRead More…

10Jul/20

Development Is Open For Future Release Of v5.5.x Series

July 10, 2020Development News, Newsmiconda

The git branch 5.4 was created, therefore the master branch is open for adding new features, to be part of future Kamailio release series v5.5.x. Any bug fix committed to master thatRead More…

10Jul/20

Git Branch 5.4 Has Been Created

July 10, 2020Development News, Newsmiconda

The git branch 5.4 has been created, to be used for releasing Kamailio v5.4.x series. To check out this branch, the following commands can be used: git clone https://github.com/kamailio/kamailio kamailio-5.4 cd kamailio-5.4Read More…

03Jul/20

Infrastructure Maintenance – Wednesday, July 8, 2020

July 3, 2020Newsmiconda

On Wednesday, July 8, 2020, there will be some work on Kamailio project infrastructure. Therefore there could be short intervals of downtime for online resources like the web server, wiki, documentation andRead More…

22Jun/20

Kamailio v5.3.5 Released

June 22, 2020Development News, News, Releasesmiconda

Kamailio SIP Server v5.3.5 stable is out – a minor release including fixes in code and documentation since v5.3.4. The configuration file and database schema compatibility is preserved, which means you don’t haveRead More…

18Jun/20

Development For Kamailio v5.4.x Frozen

June 18, 2020Development News, Newsmiconda

The formal notification that the development for the next major version 5.4.0 is now frozen. The focus has to be on testing the master branch. Also, the master branch should not getRead More…

05Jun/20

Freezing Development For Next Major Release 5.4.0

June 5, 2020Development News, Newsmiconda

Based on the discussions during the last online devel meeting, the plan is to release the next major version (Kamailio v5.4.0) around the mid of this summer. Therefore I propose to freezeRead More…

13May/20

Kamailio v5.2.7 Released

May 13, 2020Development News, News, Releaseshenning

Kamailio SIP Server v5.2.7 stable is out – a minor release including fixes in code and documentation since v5.2.6. The configuration file and database schema compatibility is preserved, which means you don’tRead More…

06May/20

Kamailio v5.3.4 Released

May 6, 2020Development News, News, Releasesmiconda

Kamailio SIP Server v5.3.4 stable is out – a minor release including fixes in code and documentation since v5.3.3. The configuration file and database schema compatibility is preserved, which means you don’t haveRead 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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