Kamailio (SIP Express Router)

ClueCon is an annual 3-Day Telephony User and Developer Conference bringing together the entire spectrum of Telephony from TDM circuits to VoIP and everything in between. The location is Chicago, USA, between August 9-11, 2011. Kamailio project will ... [More] be touched in at least three presentations: Daniel-Constantin Mierla, Asipto, co-founder of Kamailio – presenting latest news [...] [Less]

Today is World IPv6 Day – since Kamailio SIP server has support for IPv6 since 2002, I thought to contribute to today’s celebration showing how to use it to provide a SIP-based VoIP service on both IPv4 and IPv6 networks, also bridging between them, with the same SIP server instance. Following VoIP communication scenarios are [...]

Javi Beltran, an open source musician and good friend of our project, recorded a short composition for Kamailio playing Ukulele (Hawaiian instrument, aka Ukelele). You can listen or download the jingle from: Javi Beltran – Kamailio Jingle Feel free to use the jingle as you wish in relation with Kamailio project. You can see more [...]

In the year celebrating 10th anniversary of SIP Express Router (aka SER) project (from where Kamailio (former OpenSER) forked in 2005 and merged back in 2008), the development branch encountered the 15000th commit in GIT repository. It was done by ... [More] the same developer that started the project and committed the 1st one, Andrei Pelinescu-Onciul: git [...] [Less]

Kamailio SIP Server v3.1.4 stable is out – a minor release including fixes in code and documentation since v3.1.3 – configuration file and database compatibility is preserved. Kamailio (former OpenSER) 3.1.4 is based on the latest version of GIT ... [More] branch 3.1, therefore those running previous 3.1.x versions are advised to upgrade. There is no change [...] [Less]

In the past few weeks, there were couple of articles showing alternatives for Skype (like this one) – applications or/and services. Why not running your own Skype-like service? Even better, why not do it using open source and free applications and spend 8.5 billions for something else? The target is to build your own communication [...]

Jan Janak, one of project’s core developers, conducted a very interesting research project regarding energy efficiency of VoIP systems during 2010, a collaboration between iptel.org and Columbia University. The team used the source code from ... [More] sip-router.org GIT repository from January 2010, which corresponds to Kamailio (former OpenSER) and SER v3.0. The latest stable series v3.1 [...] [Less]

Kamailio project had a booth atLinuxTag 2011 exhibition hall for the four days. In a rare moment, due to spread across the world, there were 5 of the 11 members of Kamailio management team. From left to right: Daniel-Constantin Mierla (Asipto) ... [More] , Elena-Ramona Modroiu (Asipto), Henning Westerholt (1&1), Raphael Coeffic (Tekelec, developer of SEMS project), Andreas [...] [Less]

SIP:Provider CE, a complete open source VoIP provider servicing platform, released v2.2 rc1. It uses Kamailio v3.1 for core SIP routing, Asterisk for voicemail and SEMS for B2BUA applications. See full release notes at: ... [More] http://www.sipwise.com/news/announcements/spce-v2_2rc1-release/ This version targets scalability, running two instances of Kamailio, one acting as load balancer and the second for SIP registrar [...] [Less]

I (Daniel-Constantin Mierla) am going to spend few days in San Francisco, during May 06-11, 2011. It would be great to meet people from the community living around or visiting the area at the same time. If you want to meet and chat about Kamailio, SIP Express Router, SIP:Provider Platform or SIP and VoIP in [...]