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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
04Oct/10

Social Networking Event in Vienna, Oct 6

October 4, 2010Newsmiconda

Wednesday evening, October 6, 2010, just after release of version 3.1.0, some of us will go out for a dinner in Vienna, Austria. As usual, we make sure the place has goodRead More…

01Oct/10

SIP SIMPLE Made Simple with v3.1.0

October 1, 2010Newsmiconda

With addition of embedded XCAP server (xcap_server module), Kamailio 3.1.0 simplifies dramatically the deployments of SIP SIMPLE presence services. A complete tutorial about how to configure Kamailio with embedded XCAP server andRead More…

14Sep/10

Siremis v1.0.1 Released

September 14, 2010Newskamailio, siremismiconda

A new version of SIREMIS Web Management Interface for Kamailio (former OpenSER) and SIP Router is available as v1.0.1. Siremis enables straightforward management of subscriber profiles, least cost routing and load balancingRead More…

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03Sep/10

A piece of history: 9 years SER

September 3, 2010Newsmiconda

Today are 9 years since first source code commit of SIP Express Router (aka SER) happened. It started with following three commits reported by git-log: git log –pretty=format:”%h%x09%an%x09%ad%x09%s” –reverse | head -3Read More…

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30Aug/10

Kamailio Presentations at Cluecon 2010

August 30, 2010Newskamailio, openser, ser, sip routermiconda

Kamailio SIP Router presentation at Cluecon was uploaded on the web site, link: http://bit.ly/cFDNcX The one and a half day presence in Chicago was surprising good for Kamailio and SER – peopleRead More…

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19Aug/10

Kamailio v3.0.3 Released

August 19, 2010Newskamailio, openser, ser, sip, sip routermiconda

Kamailio v3.0.3 is out – a minor release including fixes in code and documentation since v3.0.2 – configuration file and database compatibility is preserved… Kamailio (OpenSER) 3.0.3 is based on the latestRead More…

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17Aug/10

Testing phase for v3.1

August 17, 2010Newskamailio, openser, ser, sipmiconda

The next major release, v3.1.0, is approaching. As of today, Aug 17, 2010, starts the  testing phase. For about 1-1.5 months, the focus is on fixing bugs and tuning the new featuresRead More…

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14Jul/10

RadioTux.de – Henning Westerholt talking about Kamailio

July 14, 2010Newskamailio, linuxtag, openser, sermiconda

Kamailio Project was present at LinuxTag 2010 with a presentation by Henning Westerholt and a exhibition booth. During the event, Henning was interviewed by RadioTux.de, here you can find the recording (German):Read More…

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06Jul/10

Summary of Devel Meeting, Berlin 2010

July 6, 2010Newsmiconda

Last Kamailio and SIP Express Router (SER) Developers’ Meeting took place in Berlin, June 8, 2010. Hosted by Fraunhofer FOKUS Institute, the event gathered 16 people, from core developers to users ofRead More…

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15Jun/10

Presentation at ClueCon 2010

June 15, 2010Newskamailio, sip routermiconda

Daniel-Constantin Mierla will give a presentation about using Kamailio and FreeSWITCH together to build large unified communication platforms at ClueCon 2010. While the primary communication channel these days is voice, instant messagingRead More…

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News

  • Kamailio v6.0.2 Released June 25, 2025
  • 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
DONATE TO KAMAILIO

– Download latest release –

6.0.2

(June 25, 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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