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Blogging about Kamailio SIP Server, Asterisk, FreeSWITCH, SIP, WebRTC, VoIP and more...Daniel-Constantin Mierlahttp://www.blogger.com/profile/05389381828542758021noreply@blogger.comBlogger750125
Updated: 11 min 50 sec ago

Kamailio v4.2.7 Released

Thu, 12/17/2015 - 22:59
Kamailio SIP Server v4.2.7 stable is out! This is a minor release including fixes in code and documentation since v4.2.6.Kamailio v4.2.7 is based on the latest version of GIT branch 4.2.  If you are running previous 4.2.x versions are advised to upgrade to 4.2.7 (or to 4.3.x series). If you upgrade from older 4.2.x to 4.2.7, there is no change that has to be done to configuration file or database structure comparing with older v4.2.x.Resources for Kamailio version 4.2.7Source tarballs are available at:Detailed changelog:Download via GIT: # git clone git://git.kamailio.org/kamailio kamailio
# cd kamailio
# git checkout -b 4.2 origin/4.2Binaries and packages will be uploaded at:Modules’ documentation:What is new in 4.2.x release series is summarized in the announcement of v4.2.0:Note: the branch 4.2 is the previous stable branch. The latest stable branch is 4.3, at this time with v4.3.1 being released out of it. The project is officially maintaining the last two stable branches, these are 4.3 and 4.2. Therefore an alternative is to upgrade to latest 4.3.x – be aware that you may need to change the configuration files and database structures from 4.2.x to 4.3.x. See more details about it at:

New Logo for Kamailio Project

Wed, 12/16/2015 - 22:58
As of today, December 16, 2015, the Kamailio Project is officially using a new logotype:Different formats and 3D artwork of the new logo can be found at:If you do any artwork based on the new logo and you want to share it with the community, we will gladly host it. Please do not hesitate to contact us.We encourage everyone displaying an old logo of Kamailio to update to the new one at the earliest convenience, it will help propagating the logo. Posting about it on blogs, forums, social media channels a.s.o. is very much appreciated.The community of the project liked the new logo, we hope everyone else will find it nice as well!Enjoy the winter holidays!

New Kamailio Module: cfgt

Tue, 12/15/2015 - 22:56
Victor Seva from Sipwise has published a new module forKamailio, named cfgt. The module is to be part of the next major release of Kamailio – v4.4.0, expected to be out on early spring of 2016.The module is useful for unit testing, to compare the results of the Kamailio configuration file routing logic. The report of execution is in JSON format, making it easy to analyse. Among the contents of the report can be the values for variables used in the configuration file.You have to make your test scenario (e.g., using sipp), send the traffic to Kamailio and then check if the report contains expected results.The documentation of the module is available at:

    The functionality of the module is rather small by now, but Victor is committed to add more in the near future, including examples of how to use it. Stay tuned and keep an eye on kamailio.org for updates!

    Next Kamailio World – May 18-20, 2016, in Berlin

    Mon, 12/07/2015 - 10:48
    Kamailio project is pleased to announce that the date and location for next Kamailio World Conference and Exhibition were decided – May 18-20, 2016, in Berlin, Germany.Kamailio project is celebrating 15 years of development in 2016, therefore we plan to have a special edition, many guests that impacted the evolution of the project since its start in 2001 at FhG Fokus Institute.Website of the event and call for presentations will be launched very soon. Meanwhile, if you haven’t participated at a past edition, you can check the previous edition website in order to get an idea about the structure and content of the event:Keep an eye on this news feed for updates in the near future!

    Proposing a New Logo for the Kamailio Project

    Thu, 12/03/2015 - 13:56
    During the Kamailio IRC level meeting this summer, a need for refreshing the logotype of the project was discussed. The current (embedded in the upper right corner of kamailio.org main page) is based on the one used for during the former OpenSER name of the project, with changes of the text to reflect the SIP Router and Kamailio names, somehow not longer very balanced, lacking good quality and high resolution graphics. The participants agreed that a refresh would be better than keeping that version.One option was to reuse the graphics from Kamailio World Conference logo, simply with Kamailio name. It was used even before as alternative logo by various peoples and companies.We now want to finish this process and we considered also the possibility of a new logo design. Thanks to Asipto and their deal with 99Designs, we ran a design contest and see if someone proposes an interesting logotype. Based on the result of the contest, followed by discussions on management group and the people interested in updating the logotype, we are proposing a new logo for the project:During the next days we are expecting feedback from community, especially if it looks too similar with other logos they know or if they like it or not. Based on that, a final decision will be taken and either we will switch to the new proposed logo or keep looking for a new one.Join the discussion about the new logo on users mailing listsr-users@lists.sip-router.org .2D and 3D variants in different formats, as well as some combinations with few pictures, can be found at:As a preview, a few variants are embedded here:

      Kamailio Syntax Highlighting for the Atom Editor

      Tue, 12/01/2015 - 13:52
      Atom is an open source editor developed by Github. One of its useful features is ability to preview the markdown files while editing them. The Kamailio source tree includes a few such markdown files (e.g., README.md in the root folder). They are nicely displayed when browsing the GIT repository at github.com.Another feature would be auto-completion suggestion based on the content of the edited file, so, for example, if you define a route block, then its name appears when adding the statement to execute that route.A syntax highlighting package for kamailio.cfg has been made available at:Information about how to install it are available in the readme at the above link.For now, it does rather basic matching of configuration file elements, still relevant to make them easier to spot. Contributions to enhance it are more than welcome!A screenshot with a part of default configuration:.Enjoy!

      Building Kamailio in Docker

      Thu, 11/26/2015 - 22:00
      Thanks to Victor Seva from Sipwise, the Travis-CI jobs for building Kamailio were upgraded to useDocker containers.A part of continuous integration process for Kamailio project, the builds are triggered by commits to master and stable branches, helping to detect compilation issues on different OS distributions, which typically happen due to different versions of libraries.The bonus is that the same build system can be used locally by anyone, being it developer or VoIP engineer. Quite useful in cases when one wants to backport patches or develop its own extensions.You can read the description of the build system as well as get the scripts from the source code of Kamailio, in the folder test/travis-ci. You can browse the content of the folder online at:Enjoy!

      Kamailio v4.3.4 Released

      Wed, 11/25/2015 - 23:00
      Kamailio SIP Server v4.3.4 stable is out – a minor release including fixes in code and documentation since v4.3.3. The configuration file and database schema compatibility is preserved.Kamailio (former OpenSER) v4.3.4 is based on the latest version of GIT branch 4.3, therefore those running previous 4.3.x versions are advised to upgrade. There is no change that has to be done to configuration file or database structure comparing with older v4.3.x.Resources for Kamailio version 4.3.4Source tarballs are available at:Detailed changelog:Download via GIT: # git clone git://git.kamailio.org/kamailio kamailio
      # cd kamailio
      # git checkout -b 4.3 origin/4.3Binaries and packages will be uploaded at:Modules’ documentation:What is new in 4.3.x release series is summarized in the announcement of v4.3.0:PS: note the dates and location for next Kamailio World – May 18-20, 2016, in Berlin, Germany – it is going to be a special edition, with Kamailio project celebrating 15 years of development.

      Preparing for FOSDEM 2016

      Thu, 11/12/2015 - 21:54
      Daniel Pocock has sent a very informative email about FOSDEM 2016 and Real Time Communications – read it here., with useful details about volunteering and speaking opportunities.FOSDEM 2016 takes place in Brussels, Belgium, during January 30-31, 2016, being one of the biggest gathering events for open source developers world wide. It will host a Real Time dev room, as the successor of Telephony and XMPP dev rooms.Members of Kamailio community will be at the event, continuing the tradition of several years in a row to meet there and discuss what is new about the project and real time communications.

      Kamailio HA with Ansible, Corosync and Pacemaker

      Wed, 11/11/2015 - 21:53
      Gholamreza Sabery Tabrizy has published a Github repository with Ansible playbooks for deploying a Kamailio active-passive HA node using Pacemaker and Corosync.You can see more details at:With few tunings to the options, it can be used as a starting point to build your own Kamailio HA node.Enjoy!PS: if you wrote or if you are aware of tools or articles related to Kamailio, email a short note to one of our mailing lists and we will publish on kamailio.org news sections.

      6th FOKUS FUSECO Forum

      Tue, 11/03/2015 - 21:00
      Fraunhofer Fokus Research Institute, the place where SIP Express Router (SER) project started (which over the time resulted in Kamailio project), is organizing the 6th edition of FUSECO Forum during Nov 5-6, 2015, in Berlin, Germany.The two days event combines practical workshops with panels and keynote presentations, revealing what is the trend in real time communications, from classic telephony, 4/5G to IoT, smart cities and machine to machine communications.For more details, see:Representative from Kamailio community will be at the event, myself included, along with Dragos Vingarzan (initial developer of IMS extensions) and Elena-Ramona Modroiu (core developer).

      Kamailio Advanced Training, Nov 30 – Dec 02, 2015, in Berlin

      Thu, 10/29/2015 - 05:30
      Next European edition of Kamailio Advanced Training will take place in Berlin, Germany, during November 30 – December 02, 2015.The content will be based on latest stable series of Kamailio 4.3.x, released in June 2015, the major version that brought a large set of new features, currently having the minor release number v4.3.3.The class in Berlin is organized by Asipto  and will be taught by Daniel-Constantin Mierla, co-founder and core developer of Kamailio SIP Server project.Read more details about the class and registration process at:

      Kamailio Dispatcher Discovery Service with NodeJS and Etcd

      Wed, 10/28/2015 - 22:11
      An interesting resource for those relying on NodeJS for various needs and using Kamailio as load balancer in front of Asterisk or eventually other SIP systems (Freswitch, media servers, PSTN gateways, etc…):Practically, this tool can be run along side with Kamailio and each SIP system (e.g., Asterisk), usingEtcd as communication channel to publish what SIP systems are available. Based on this information, the tool instance next to Kamailio is generating the dispatcher.list and instructs Kamailio to reload that file.Etcd is a highly-available key value store for shared configuration and service discovery developed as part of CoreOS project.

      Kamailio and FreeSwitch – Cluecon Weekly Conference Call

      Tue, 10/20/2015 - 13:25
      On Wednesday, October 21, 2015, at 17:00GMT (12:00CT, 18:00 London, 19:00 Berlin), the Cluecon weekly conference call will focus on Kamailio and FreeSwitch. I will be joining the call, answering the questions about Kamailio and its options to integrate with FreeSwitch. Expect the FreeSwitch core developers to be around to handle the questions about their project.Participation is open for anyone, you can dial in for audio or video sessions using a SIP phone or webrtc capable browser:More dial in options (PSTN) are presented at:Enjoy!

      Kamailio v4.3.3 Released

      Fri, 10/02/2015 - 21:00
      Kamailio SIP Server v4.3.3 stable is out – a minor release including fixes in code and documentation since v4.3.2 – configuration file and database compatibility is preserved.Kamailio (former OpenSER) v4.3.3 is based on the latest version of GIT branch 4.3, therefore those running previous 4.3.x versions are advised to upgrade. There is no change that has to be done to configuration file or database structure comparing with older v4.3.x.Resources for Kamailio version 4.3.3Source tarballs are available at:Detailed changelog:Download via GIT: # git clone git://git.kamailio.org/kamailio kamailio
      # cd kamailio
      # git checkout -b 4.3 origin/4.3Binaries and packages will be uploaded at:Modules’ documentation:What is new in 4.3.x release series is summarized in the announcement of v4.3.0:

      Astricon, Oct 13-15, 2015, in Orlando

      Fri, 09/18/2015 - 13:23
      Time for another Astricon, the Asterisk Users Conference, is approaching.Kamailio project will be present at the event, with an exhibition booth as well as talks about SIP, Kamailio and Asterisk, by Fred Posner and I. Many other developers and community members will be at the event, such as Torrey Searle, Alex Balashov, Nir Simionovich or JR Richardson, therefore it looks like a great place to come and meet other Kamailians.Astricon is the event where a lot of Asterisk and Kamailio knowledge is concentrated in the same place, if you need to learn more about one or the other and how to combine them, then this event is the right opportunity. More about the event can be found at:If you offer services or products that incorporate Kamailio, you are welcome to join our booth in the exhibition area, you can bring flyers, giveaways as well as come with a demo to show on site. Contact us via mailing list .

      IIT RTC Conference, Oct 6-8, 2015, in Chicago

      Thu, 09/17/2015 - 13:21
      Kamailio project is present at IIT RTC Conference, Oct 6-8, 2015, in Chicago, with a presentation by myself about SIP Server Optimizations for Mobile Networks.We have a discount code for our community, giving an 100USD discount, which can save a bit or make some of the available tickets completely free (like Expo Plus admission). Should someone be interested, contact directly via email.More details about the event can be found at:If Kamailio friends are in the Chicago area and want to meet and chat about the project, no matter of participation to the conference, write an email at the above address and we can try to organize a meetup.

      Kazoocon, Oct 5-6, 2015, in San Francisco

      Wed, 09/16/2015 - 13:20
      Kazoo project organizes its annual conference in San Francisco, USA, during October 5-6, 2015. Kazoo platform embeds Kamailio as its core SIP routing engine, a module with same name, kazoo, being part of Kamailio’s standard source code.Expect many people from Kamailio community to be there, a lot of talks should present interesting use cases for Kamailio for running cloud PBX service from Kazoo developers and Kazoo users. Also, I will speak about VoIP security: Kamailio and VoIP Wild World.More details about the event can be found at:

      Elastix World 2015

      Tue, 09/15/2015 - 13:12
      Elastix World 2015 takes place in Bogota, Colombia, during October 7-8, 2015. Kamailio is part of Elastix Multi Tenant (Elastix MT) distribution, therefore expect to meet many community members there.Long time community member the Kamailio Debian packager in the past, Jon Bonilla will have a talk about Scaling and load balancing SIP systems.For more details about the event, visit:

      Kamailio v4.3.2 Released

      Thu, 09/10/2015 - 17:00
      Kamailio SIP Server v4.3.2 stable is out – a minor release including fixes in code and documentation since v4.3.1 – configuration file and database compatibility is preserved.Kamailio (former OpenSER) v4.3.2 is based on the latest version of GIT branch 4.3, therefore those running previous 4.3.x versions are advised to upgrade. There is no change that has to be done to configuration file or database structure comparing with older v4.3.x.Resources for Kamailio version 4.3.2Source tarballs are available at:Detailed changelog:Download via GIT: # git clone git://git.kamailio.org/kamailio kamailio
      # cd kamailio
      # git checkout -b 4.3 origin/4.3Binaries and packages will be uploaded at:Modules’ documentation:What is new in 4.3.x release series is summarized in the announcement of v4.3.0:No comments »

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