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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
05Aug/21

20 For Kamailio 20

August 5, 2021Events, Kamailio World, Newsmiconda

Note: this article was written by Daniel-Constantin Mierla alone, being a personal selection of who or what was considered to have impacted the evolution of Kamailio project to become what it isRead More…

25Jul/21

Kamailio World Online – Sep 1-2, 2021

July 25, 2021Development News, Events, Kamailio World, Newsmiconda

The pandemic is not over, even the vaccination helped a lot, the variants of the  COVID-19 virus are a source of concern and create troubles in various places across the world, thereforeRead More…

08Jul/21

New Kamailio Module: NATS

July 8, 2021New Modules, Newsmiconda

Recently Emmanuel Schmidbauer pushed a new module to Kamailio git repository named nats, which allows to connect to NATS (https://nats.io – the distributed messaging system) and consume messages using queue groups. ARead More…

15Jun/21

Kamailio v5.5.1 Released

June 15, 2021News, Releasesmiconda

Kamailio SIP Server v5.5.1 stable is out – a minor release including fixes in code and documentation since v5.5.0. The configuration file and database schema compatibility is preserved, which means you don’t haveRead More…

02Jun/21

Kamailio v5.4.6 Released

June 2, 2021News, Releasesmiconda

Kamailio SIP Server v5.4.6 stable is out – a minor release including fixes in code and documentation since v5.4.5. The configuration file and database schema compatibility is preserved, which means you don’t haveRead More…

01Jun/21

Kamailio On ClueCon Weekly – June 4, 2021

June 1, 2021Events, Newsmiconda

The ClueCon Weekly on the 4th of June 2021, at 10:00am CT, will host Daniel-Constantin Mierla for a live chat about latest Kamailio 5.5 series: what are the changes compared with theRead More…

05May/21

Kamailio v5.5.0 Released

May 5, 2021News, Releasesmiconda

May 05, 2021: Kamailio v5.5.0 is out –  a new major release, bringing new features and improvements added during nine months of development and about 6 weeks of testing. In short, this major release brings 6Read More…

23Apr/21

Development Is Open For Future Release Of v5.6.x Series

April 23, 2021Development News, Newsmiconda

The git branch 5.5 was created, therefore the master branch is open for adding new features, to be part of future Kamailio release series v5.6.x (or whatever version number will be decidedRead More…

22Apr/21

Git Branch 5.5 Has Been Created

April 22, 2021Development News, Newsmiconda

The git branch 5.5 has been created, to be used for releasing Kamailio v5.5.x series. To check out this branch, the following commands can be used: git clone https://github.com/kamailio/kamailio kamailio-5.5 cd kamailio-5.5Read More…

15Apr/21

Kamailio v5.4.5 Released

April 15, 2021Newsmiconda

Kamailio SIP Server v5.4.5 stable is out – a minor release including fixes in code and documentation since v5.4.4. 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
DONATE TO KAMAILIO

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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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