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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
22Aug/22

Kamailio World Conference Online 2022 – The Schedule

August 22, 2022Newsmiconda

The schedule for Kamailio World Conference Online 2022 has been published on the event website: https://www.kamailioworld.com The event spans over two days, September 7-8, 2022, with presentations and open discussion sessions duringRead More…

12Jul/22

Sipexer v1.0.3 Released

July 12, 2022Companion Software, Newsmiconda

Announcing the release of sipexer v1.0.3 – a CLI SIP tool to facilitate testing and monitoring of SIP signalling servers. It is another patch release following the v1.0.2 from late May, fixingRead More…

06Jul/22

Kamailio v5.6.1 Released

July 6, 2022Development News, News, Releasesmiconda

Kamailio SIP Server v5.6.1 stable is out – a minor release including fixes in code and documentation since v5.6.0. The configuration file and database schema compatibility is preserved, which means you don’t haveRead More…

29Jun/22

New Module: TLS_WOLFSSL

June 29, 2022Development News, New Modules, Newsmiconda

A recent contribution by Chan Shih-Ping added a new module, respectively tls_wolfssl: https://www.kamailio.org/docs/modules/devel/modules/tls_wolfssl.html It offers an alternative to the tls module using the library from wolfssl project, the tls module is usingRead More…

23May/22

Kamailio v5.6.0 Released

May 23, 2022News, Releasesmiconda

May 23, 2022: Kamailio v5.6.0 is out –  a new major release, bringing new features and improvements added during ten months of development and about 8 weeks of testing. In short, this major release brings 7Read More…

09May/22

Converting Kamailio Wiki To Markdown

May 9, 2022Development News, Newsmiconda

It was discussed a couple of times during the past Kamailio development meetings and several days ago the works started to convert the Kamailio Wiki content to markdown format and host theRead More…

06May/22

Development Is Open For Future Release Of v5.7.x Series

May 6, 2022Development News, Newsmiconda

The git branch 5.6 was created, therefore the master branch is open for adding new features, to be part of future Kamailio release series v5.7.x (or whatever version number will be decidedRead More…

05May/22

Git Branch 5.6 Has Been Created

May 5, 2022Development News, Newsmiconda

The git branch 5.6 has been created, to be used for releasing Kamailio v5.6.x series. To check out this branch, the following commands can be used: git clone https://github.com/kamailio/kamailio kamailio-5.6 cd kamailio-5.6Read More…

26Apr/22

Sipexer v1.0.1 Released

April 26, 2022Companion Software, News, Releasesmiconda

Announcing the release of sipexer v1.0.1 – a CLI SIP tool to facilitate testing and monitoring of SIP signalling servers. Among changes coming with this version: reuse Via from INVITE request forRead More…

15Apr/22

Development For v5.6.0 Is Frozen

April 15, 2022Development News, Newsmiconda

Here is the formal announcement that the development for the next major version 5.6.0 is now frozen. The focus has to be on testing the master branch. Also, the master branch shouldRead 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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