Archive for the ‘News’ category

Kamailio Presentation at LinuxTag 2010

June 2nd, 2010

Henning Westerholt will talk about Geographical Redundant VoIP Sytems with Kamailio, on Wednesday, June 9, 2010, 11:20am, at LinuxTag 2010, in Berlin, Germany.

The presentation is about designing and implementation of geographical redundant Voice over IP systems with the Kamailio SIP router. It goes through an overview about the 1&1 voice over IP backend, some performance requirements for carrier grade VoIP networks and real-world measurements.

Then are some key concepts for building a geographical redundant system are presented. This are for example partitioning of the user base and network load with different means like anycast IP and means of maintaining a shared database state for subscriber data and registration information. Finally some common problems in building bigger VoIP clusters and solutions approaches are discussed.

VoIPToday Kamailio Interview

June 1st, 2010

VoIPToday has published an interview with Daniel-Constantin Mierla, co-founder and core developer of Kamailio (OpenSER) project. Read it at:

Kamailio and Freeswitch Integration, Jun 2, 2010

May 29th, 2010

On the 2nd of June, 2010, Daniel-Constantin Mierla will speak at FreeSWITCH Weekly Conference about integration of Kamailio and FreeSWITCH. The draft of agenda is:

  • Goals of Kamailio, how it differentiates from FreeSWITCH and why using them together creates a very powerful framework to build large VoIP systems.
  • Kamailio for sip routing and FreeSWITCH as media server (conferencing, voicemail, IVR, announcements)
  • FreeSWITCH as a B2BUA for Kamailio (topology hiding, transcoding, call interrupt detection)
  • FreeSWITCH as prepaid engine for Kamailio
  • Load balancing FreeSWITCH servers with Kamailio
  • Q & A Session

You can find details about the time and how to call in conference at:

Kamailio at Amoocon 2010

May 28th, 2010

For the second year, Amoocon takes place in Rostock, Germany, June 4-6, 2010.

Daniel-Constantin Mierla has two presentation about Kamailio – SIP Router project:

First talk focuses on asynchronous processing capabilities of this SIP server and what is new in latest version:

  • asynchronous TCP
  • asynchronous SIP message processing
  • asynchronous message queues
  • asynchronous TLS
  • new features in 3.0.x and devel versions

The second talk goes through LUA API exported by this SIP server, which allow building new fancy SIP applications without messing with C coding or configuration file language.

More about what is new in upcoming 3.1.0 and LUA API:

If you participate to Amoocon event and want to meet, drop an email to miconda [at] gmail.com.

Kamailio v3.0.2 Released

May 27th, 2010

Kamailio v3.0.2 is out – a minor release including fixes in code and documentation since v3.0.1 – configuration file and database compatibility is preserved…

Kamailio (OpenSER) 3.0.2 is based on the latest version of GIT branch 3.0, therefore those running 3.0.0 or 3.0.1 are advised to upgrade — there is no change required to be done to configuration file or database.

Source tarballs are available at:

http://www.kamailio.org/pub/kamailio/3.0.2/src/

Detailed changelog:

http://www.kamailio.org/pub/kamailio/3.0.2/ChangeLog

Download via GIT:

# git clone –depth 1 git://git.sip-router.org/sip-router kamailio
# cd kamailio
# git checkout -b kamailio_3.0 origin/kamailio_3.0

Binaries and packages will be uploaded at:

http://www.kamailio.org/pub/kamailio/3.0.2/

Modules’ documentation:

http://www.kamailio.org/docs/modules/3.0.x/

What is new in 3.0.x release series is summarized in the announcement of v3.0.0:

http://www.kamailio.org/w/kamailio-openser-v3.0.0-release-notes/

If you are eager to see what’s up to next major release (v3.1.0), visit:

http://sip-router.org/wiki/features/new-in-devel

Note: Kamailio is the new name of OpenSER project, name changed on July 28, 2008, due to trademark issues. First version under Kamailio name was 1.4.0. Source code for releases 3.0.0+ is hosted on GIT repository at http://sip-router.org. Older versions will continue to use OpenSER name. Project site and SVN repository on SourceForge.net still use the old name OpenSER.

SIP Router Devel Meeting, June 8, 2010, Berlin

May 11th, 2010

The next face to face developer meeting of SIP Router Project (Kamailio (OpenSER) and SIP Express Router (SER)) will take place in Berlin, Germany, on June 8, 2010.

The event is hosted for the second time by Fraunhofer FOKUS Institute/NGNI and Technische Universität Berlin/AV at following address:

Fraunhofer  FOKUS

Fraunhofer FOKUS, Room 1008
Kaiserin-Augusta-Allee 31
10589 Berlin
- see venue of the location


It is an open event, with no participation fee. However, registration is required via email at:

registration@lists.sip-router.org

in order to dimension the meeting place logistics and send you location details. If you plan to attend, please send registration email as soon as possible, no later than June 3.

The meeting gives you the opportunity to meet developers, say your opinions about current state and future development, network with people using the project.

Following developers and community members announced so far the presence to this event:

Among topics to be discussed:

  • new features in development version
  • next steps in Kamailio – SER duplicated modules integration
  • next release roadmap – time lines and goals
  • project management and resources

Feel free to propose topics via email to sr-dev@lists.sip-router.org.

Time lines:

  • 10:00 – 10:30: Welcome the participants
  • 10:30 – 12:30: Morning Session – Discussing current state of the project
  • 12:30 – 13:30: Lunch
  • 13:30 – 16:30: Afternoon Session – Future development and project management
  • 16:30 – 17:00: Ending the meeting
  • 18:00 – 00:00: Social networking – Dinner

Note that the days before, Amoocon 2010 takes place in Rostock, Germany, and SIP Router project is present with two presentations about Asynchronous SIP Processing and Doing SIP Routing in Lua.

The days after the devel meeting, LinuxTag 2010 takes place in Berlin, where our project has a presentation about Distributed VoIP platforms and a stand for the entire duration of this event – 4 days – come and visit us at LinuxTag!

For USA, there is a plan to schedule a social networking event on June 22, tied to Advanced Training for Carriers – if you are interested to join the event in Miami, please send an email to registration@lists.sip-router.org.

Testing at SIPit 26

May 5th, 2010

The 26th SIP Interoperability Test event takes place in Kista (north of Stockholm), Sweden, May 17-21, 2010.

Kamailio – SIP Router Project will participate, part of project’s goals to provide a stable and compliant SIP server implementation.

If you want to meet there, schedule some tests together, contact Daniel-Constantin Mierla per email at: miconda [at] gmail.com.

There are lot of things which we are interested to test:

  • IPv6
  • TCP (asynchronous communication for massive TCP SIP traffic)
  • TLS secure communication
  • SCTP
  • SIMPLE instant messaging and presence
  • you named it, we should support it (no RTP handling though)

GSoC 2010 Selected Student Application

May 1st, 2010

Google site announced selected students for Summer of Code 2010 program. Kamailio and SIP Router participated with a project proposal regarding presence and states notifications for audio conference calls.

There were seven student applications, all showing good skill, unfortunately only one could be selected. He is Marius Ovidiu Bucur, Computer Science student in Bucharest.

Many thanks to all applicants, we hope to see some of them around the project.

For more details, visit:

Kamailio 3.1.0 at the horizon

April 15th, 2010

The IRC devel meeting from yesterday set the main milestones for the next major release 3.1.0. With a pleasantly very stable outcome with 3.0.0, we could focus on adding new features, lot of them being already in GIT repository:

  • Lua scripting support
  • Interactive configuration file repository
  • Generic tree-indexed caching system
  • Message Queuing system for configuration file
  • Geoip location system via config variables
  • Registration to remote SIP servers for inbound calls
  • Xlog extensions to print location – line and file – of message
  • and more – check at: http://sip-router.org/wiki/features/new-in-devel

Andrei Pelinescu-Onciul updated about his work with asynchronous TLS, to get in repository in 2-4 weeks. Also, there is work to a new module interface that will allow giving expressions as parameters to functions.

Apart of new features direction, some effort will be done to merge some modules that are more or less duplicate in features, to offer a better Kamailio and SER integration.

Details about the IRC meeting, with link to minutes at the end, at:

Time lime wise regarding next major version, Kamailio 3.1.0, we look to freeze after end of June with target release date in September.

IRC Devel Meeting, Apr 14, 15:00UTC

April 12th, 2010

Next IRC meeting for Kamailio (OpenSER) and SIP Router is going to take place next Wednesday, April 14, 15:00UTC, 2010.

The channel is: #sip-router on server irc.freenode.net.

Manny members of development team announced the presence, you are welcome to join and participate to discussions. A draft agenda is available at: