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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: 12 min 1 sec ago

Kamailio – 15 Years of Development

Sat, 09/03/2016 - 12:34
Fifteen years ago, on September 3, 2001, inside Fraunhofer Fokus Research Institute, first commit to the source code repository of Kamailio has been made by Andrei Pelinescu-Onciul:Here are the references to the first three commits:# git log --pretty=format:"%h%x09%an%x09%ad%x09%s" --reverse | head -3

512dcd9 Andrei Pelinescu-Onciul Mon Sep 3 21:27:11 2001 +0000 Initial revision
888ca09 Andrei Pelinescu-Onciul Tue Sep 4 01:41:39 2001 +0000 parser seems to work
e60a972 Andrei Pelinescu-Onciul Tue Sep 4 20:55:41 2001 +0000 First working releaseThe project was initially named SIP Express Router (aka SER), years later – after a fork, a rename and a merge – it converged into into what is now the Kamailio project. It has been a fabulous journey so far, in a more than ever challenging market of real time communications.Well known for its performances, flexibility and stability, Kamailio has set a relevant footprint in open source and open communications, enabling entities world wide to prototype, launch new services and build scalable businesses, research and innovate in real time communications. More over, the project has succeeded to create an amazing community of users and contributors, the real engine behind its successful evolution.Its time to celebrate the moment, everyone involved deserving it — thank you all!In a few months the project will deliver v5.0.0, its 16th public major release, with a restructuring of the source tree to match current modern approaches and more flexibility in choosing the language for building the desired SIP routing rules. Stay tuned!Thank you for flying Kamailio!

VUC – SER-Kamailio At 15 Years

Mon, 08/29/2016 - 17:16
This week on Friday, September 2, 2016, we will join the VoIP Users Conference (VUC) moderated by Randy Resnick for an open discussion about the evolution of Kamailio project.On September 3, 2001, the fist commit was pushed for what was then SIP Express Router (SER) project at Fraunhofer FOKUS Research Institute in Berlin, Germany, project that evolved over the time in what is now Kamailio.A lot of great things happened along the way, there were also some not-very-pleasant moments, but hey, that’s life! Join us to listen or share such moments — if Kamailio made your live easy or bad, if you have a funny story to tell or a photo/video to share, you are welcome on board!We started the celebration at Kamailio World Conference 2016, now we gather online of a non-technical debate of whether the project succeeded to deliver on its promises.Several people already confirmed the participation, like Alex Balashov, Daniel-Constantin Mierla and Fred Posner. We expect VUC regulars such as James Body to be around.Anyone can connect to VUC and listen audio or watch the video session via SIP or YouTube live streaming. For more details see:Should you want to actively participate in the discussion, contact us via email at registration [at] kamailio.org in order to plan a bit the structure. Last minute joining is also possible, but a matter of capacity for the video conferencing system.Thank you for flying Kamailio!

SIPit 32

Fri, 08/26/2016 - 15:32
The next SIPit – the SIP Tnteroperability Test Event – will be held at the University of New Hampshire Interoperability Laboratory, in Durham, New Hampshire, USA, during September 12-16, 2016.SIPit facilitates testing your SIP implementations, gathering of SIP professionals that develop phones, PBXes, servers or other SIP application to enable peer-to-peer an multiparty tests.There is a great testbed of various NAT networks for those of you working with NAT traversal issues, including IPv6 in the network as well as an extensive set of tests for TLS. This year, there will also be a focus on STIR – the new secure identity handling in SIP.Olle E. Johansson explains why you should participate in the next slides:Participate in SIPit from Olle E JohanssonTo register and learn more details, go to the main SIPit web site:Along the past 15 years, Kamailio-SER participated at many of the SIPit events, which is reflected in the robustness of the application. This edition, at least Olle will be again there to ensure the latest version stays rock solid.Many of the automatic tests on site are built using Kamailio, go there and hammer it!Thank you for flying Kamailio!

ClueCon 2016

Tue, 08/02/2016 - 15:30
The ClueCon 2016 is preparing to start next week in Chicago, IL, USA. Organized mainly by the FreeSwitch developers, the event brings together VoIP enthusiasts from around the world.Many Kamailio friends and community members will be at the event, be sure it worth attending it.Our Fred Posner, from Palner Group/LOD Communications, will present about pairing Kamailio and FreeSwitch to build scalable and secure VoIP systems.The friends at Asterisk PBX project are represented by Matthew Fredrickson of Digium, touching in his presentation the use of Asterisk and Kamailio to enhance SIP presence services.Karl Anderson of 2600hz, which were contributing lately a lot of code to Kamailio’s presence and database extensions, will talk about their open source Kazoo Cloud PBX platform.We spotted some of the big supporters of Kamailio World Conference, respectively Simon Woodhead from Simwood eSMS, Matthew Hodgson from Matrix.org, Mira Georgieva from Zoiper, as well as long time Kamailio friends or developers such as Alexandr Dubovikov from Homer Sipcapture, Emil Ivov from Jitsi/Atlassian, Cezary Siwek, Giovanni Maruzelli, Michael Ricordeau and Tristian Foureur from Plivo.Wishing everyone great season holidays!Thank you for flying Kamailio!

IETF96 in Berlin

Thu, 07/14/2016 - 09:54
The 96th meeting of IETF (the Internet Engineering Task Force) takes place in Berlin, Germany, during July 17-22, 2016. Ahackaton tied to the IETF meeting is organized during the weekend, July 16-17 .Among the major standardization topics to be discussed, from Kamailio point of view, are: SIP, WebRTC, TURN, IPv6, TLS and DNS (DNSEC/DANE).Daniel-Constantin Mierla and Olle E. Johansson from the Kamailio community will be present at the event.Together with Lorenzo Miniero from Janus WebRTC Gateway project, they plan to organize a meetup (for drinks/dinner) on Monday evening, July 18 — likely to happen at a restaurant nearby IETF meeting, starting around 20:00. If you are in Berlin and want to join, contact us (email to sr-users mailing list or contact directly one of these three persons). Each participant will take care of own expenses, we aim to have an open discussion about what’s new lately and where we head on in real time communications space.Looking forward to meeting some of you next week in Berlin!Thanks for flying Kamailio!

Kamailio v4.2.8 Released

Tue, 07/05/2016 - 18:00
Kamailio SIP Server v4.2.8 stable is out! This is a minor release including fixes in code and documentation since v4.2.7.Kamailio v4.2.8 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 4.2.8 (or to 4.3.x/4.4.x series). If you upgrade from older 4.2.x to 4.2.8, 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 4.2.8Source 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 an old stable branch. The latest stable branch is 4.4, at this time with v4.4.2 being released out of it. The project is officially maintaining the last two stable branches, these are 4.4 and 4.3. Therefore an alternative is to upgrade to latest 4.4.x – be aware that you may need to change the configuration files and database structures from 4.2.x to 4.3.x/4.4.x. See more details about them at:Important: this version marks the end of planned releases from branch 4.2. From now on the focus is on maintaining the branches 4.4 and 4.3 for stable releases.Thank you for flying Kamailio! Enjoy the summer holidays!

Kamailio v4.3.6 Released

Thu, 06/30/2016 - 20:30
Kamailio SIP Server v4.3.6 stable is out – a minor release including fixes in code and documentation since v4.3.5. The configuration file and database schema compatibility is preserved.Kamailio (former OpenSER) v4.3.6 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 4.3.6Source 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:Note: the branch 4.3 is the previous stable branch. The latest stable branch is 4.4, at this time with v4.4.2 being released out of it. The project is officially maintaining the last two stable branches, these are 4.4 and 4.3. Therefore an alternative is to upgrade to latest 4.4.x – be aware that you may need to change the configuration files and database structures from 4.3.x to 4.4.x. See more details about it at:Thanks for flying Kamailio and enjoy the summer holidays!

Kamailio v4.4.2 Released

Tue, 06/28/2016 - 22:36
Kamailio SIP Server v4.4.2 stable is out – a minor release including fixes in code and documentation since v4.4.1. The configuration file and database schema compatibility is preserved.Kamailio v4.4.2 is based on the latest version of GIT branch 4.4, therefore those running previous 4.4.x versions are advised to upgrade. There is no change that has to be done to configuration file or database structure comparing with older v4.4.x.Resources for Kamailio version 4.4.2Source tarballs are available at:Detailed changelog:Download via GIT: # git clone git://git.kamailio.org/kamailio kamailio
# cd kamailio
# git checkout -b 4.4 origin/4.4Binaries and packages will be uploaded at:Modules’ documentation:What is new in 4.4.x release series is summarized in the announcement of v4.4.0:Thanks for flying Kamailio!

Kamailio.org Server Maintenance

Fri, 06/03/2016 - 11:49
Update 1: some of the maintenance work will be performed in the afternoon of Monday, June 6, starting with 14:00 Berlin, Germany.In the near future, likely next week, kamailio.org server will receive a maintenance upgrade. The exact date will be decided soon and announced on Kamailio mailing lists and other online channels.Main affected services: website (including the wiki portal) and mailing lists.Hopefully there will only be short downtime intervals. Anyhow, if it happens that you are trying to access kamailio.org and it is not responding, retry a bit later.The #kamailio IRC channel on freenode.net server can be used for discussions during the upgrade interval.

Kamailio World 2016: Ready For The Show

Wed, 05/11/2016 - 17:31
Time is passing fast, no doubt, feels like yesterday when we were toying with the idea of organizing a Kamailio related conference and now we are one week before its 4th edition.Every year there was an increase in the number of the attendees and we are going to run full house this edition. Of course, we take this chance to celebrate 15 years of development for Kamailio, a long journey, not always smooth, but everything ended up strengthening the project. Being the oldest very active developer, I (Daniel-Constantin Mierla) can say that Kamailio has one of the most active, challenging and pleasant to work with community, including here all the developers and users, this being the main reason of getting to where we are now with the project. Many thanks to all of you for that!Back to the next week, some last minutes updates.
The trip to Fraunhofer Fokus Institute is confirmed and if nothing unexpected happens, those that registered for workshops can choose to visit the NGNI laboratories. It will worth it, few very interesting demos will be shown on site and you can interact with some of the bleeding technologies that may shape the future of how we communicate and interact in real time with all things around us. A shuttle bus will be available to transport between Kamailio World location and Fokus institute. More details are available at:If you haven’t participated at the past editions, take a bit of time to get familiar with the address of the event:Like in the past, it is a single track conference, the schedule is available at:The exhibitors are preparing again very interesting product or services show cases and demos for the entire duration of the conference days. Expect some local 4G/VoLTEinfrastructure from NG Voice and Core Network Dynamics. Matrix.org returns this year with an integration between SIP and the matrix federating protocol and platform.Digium will give you the chance to play with their latest SIP phones as well as see demos about the new cool Asterisk features. A consistent team from Sipwise will be around to reveal all the bits of SIP:Provider platform.Special thanks to all sponsors that allowed us to bring again an amazing group of speakers: FhG Fokus, Asipto, Sipwise, Sipgate, Simwood, Evariste Systems, Matrix.org, Digium, Core Network Dynamics, Voicetel, DIDx and Pascom.See you next with in Berlin!

Kamailio v4.4.1 Released

Tue, 05/10/2016 - 21:00
Kamailio SIP Server v4.4.1 stable is out – a minor release including fixes in code and documentation since v4.4.0. The configuration file and database schema compatibility is preserved.Kamailio v4.4.1 is based on the latest version of GIT branch 4.4, therefore those running previous 4.4.x versions are advised to upgrade. There is no change that has to be done to configuration file or database structure comparing with older v4.4.x.Resources for Kamailio version 4.4.1Source tarballs are available at:Detailed changelog:Download via GIT: # git clone git://git.kamailio.org/kamailio kamailio
# cd kamailio
# git checkout -b 4.4 origin/4.4Binaries and packages will be uploaded at:Modules’ documentation:What is new in 4.4.x release series is summarized in the announcement of v4.4.0:Thanks for flying Kamailio and looking forward to meeting many of you at Kamailio World Conference 2016 next week in Berlin!

Kamailio - SIP Routing in Lua or Python

Fri, 05/06/2016 - 17:25
Part of development for next major release Kamailio 5.0, we would like to announce that the framework (code-named kemi) which allows writing the routing blocks in embedded languages is already in place. At this moment, Lua or Python can be use as alternative to the native scripting language to write the routing blocks. More details can be found at:Examples of SIP routing scripts that offer more or less same features as etc/kamailio-basic.cfg are available in source tree at examples/kemi. For convenience of reading, here are the links to git repository:You can compare the last three above and see how different or similar they look for providing same SIP routing features using different languages.The work is not finished, lot of modules need to export now functions to embedded config interface, which is quite straightforward:Also, a missing part is handling the equivalents of event_route blocks in embedded languages, an ongoing discussion being open on mailing lists..Interesting that some incipient performance tests to compare the interpreters show good results for using especially Lua but also Python:Anyone willing to help can start exporting functions from modules to embedded interface or test some more complex configs in Lua or Python.Thank you for flying Kamailio and looking forward to meeting many of you at Kamailio World Conference in less than two weeks!

New Kamailio Module: NSQ

Thu, 04/28/2016 - 13:32
A new module named NSQ has been imported in Kamailio’s GIT repository, authored by Emmanuel Schmidbauer from Weave Communications. Emmanuel has become also a registered developed in order to maintain the module.In short, the module provides a NSQ connector for Kamailio configuration file, allowing to interact with NSQ servers from kamailio.cfg. NSQ is a real time distributed messaging platform, you can read about NSQ at nsq.io.More about the NSQ module is available at:The module will be part of the future major release Kamailio v5.0.0! While waiting for that release you can play with NSQ using the git master branch.Thank you for flying Kamailio!

Responsive Look for Kamailio Website

Wed, 04/27/2016 - 13:30
The kamailio.org website has been updated to use a responsive theme. The old skin was built during 2010-2011, the corresponding wordpress theme was not updated for few years, lacking the responsive layout.The new look keeps the same clean and clear approach. One of the major changes was the need to widget-ize the sidebar on the right, which used to be the main navigation menu for most of the resources provided by Kamailio project. Several of them were left on the new right sidebar and the rest along with new resources were indexed by the menus at the bottom of the pages.The main page for kamailio.org is planned to be reorganized with a fresh design in the near future as well, building on top of the framework provided by the new wordpress template.Suggestions on how to organize the website and its menus for better accessibility or more suggestive navigation are very welcome! Email us to .Thank you for flying Kamailio!

Kamailio World 2016: Four Weeks Before

Wed, 04/20/2016 - 13:08
Time is passing and Kamailio World Conference 2016 is approaching at fast pace – only four weeks left till the start of the event!The schedule is pretty much nailed down, with some adjustments still expected to happen. The event starts like the past edition with a half a day of technical workshops, followed by two full conference days.A larger group of speakers is participating to this edition. There was a big number of speaking proposals and we wanted to highlight more of the people that had a relevant contribution to the evolution of the project. To accommodate properly, two more discussion panels were added, keeping also the classic VUC panel.The topics cover many of the interesting aspects of real time communications, from security and scalability to WebRTC and VoLTE, touching Kamailio and other open source projects like Asterisk or FreeSwitch.More details can be found on the website of the event:Don’t forget that this year Kamailio celebrates 15 years of development, the party is at Kamailio World!We expect to fill the capacity of the conference room, if you haven’t registered yet and plan to attend, do it as soon as possible to secure your seat!Many thanks to our sponsors that made possible this event: FhG Fokus, Asipto, Sipwise, Matrix.org, Sipgate, Simwood, NG Voice, Digium, VoiceTel, Evariste Systems, Core Network Dynamics, Pascom, Didx.net.Thank you for flying Kamailio and looking forward to meeting many of you at Kamailio World 2016!

Kamailio Devel Meeting on IRC, Apr 21, 2016

Mon, 04/18/2016 - 13:07
The next Kamailio Devel Meeting on IRC has been planned for Thursday, April 21, 2016, at 14:00UTC (10:00 New York, 15:00 London, 16:00 Berlin), on #kamailio channel from freenode.net.As usual, it will be a chat session between all Kamailio community members, developers and users, to discuss the plans to next major releases and various admin bits related to the project. This time we are talking about Kamailio 5.0, which aims to bring some significant features, including the ability to write all the routing logic in a well known scripting language (e.g., Lua, Python), with the option to reload it without a restart and, of course, offering a larger set of statements, libraries and tools around it. The old config file will stay in place as well.A wiki page was set up to collect the topics and other details about the meeting:Among announced participants: Alex Balashov, Daniel-Constantin Mierla, Fred Posner, Olle E. Johansson, Victor Seva.If have something to discuss, do not hesitate to add your topics and list your name in the page. Anyone can participate, even only for watching the discussions.

Kamailio, TLS and Let’s Encrypt Certificate

Fri, 04/15/2016 - 13:05
Let’s Encrypt is a free certificate authority launched in the second part of 2015, recently leaving the beta stage – from September 2015 to April 2016, they issued over 1.7 millions certificates.Started by Mozilla and backed up by big IT players and organization (e.g., Internet Society, Cisco, HP, Microsoft, Facebook, …), it offers free TLS certificates that are trusted by all the major operating systems and browsers out there. In other words, you don’t have to pay for a TLS certificate, meaning that it is no reason to support HTTPS for your web server and SIP over TLS for your VoIP service.Our Fred Posner made a blog article showing how simple is to deploy a Let’s Encrypt certificate for Kamailio – you can read it at:Kamailio has one of the best and scalable TLS implementations, with asynchronous support since 2008, already deployed by large IM mobile services servicing millions of active users. If you don’t have TLS enabled in your Kamailio, it’s time to act, it costs nothing now and brings full privacy to your customers connecting over the public internet!Of course, kamailio.org website is already using a Let’s Encrypt certificate.Thank you for flying Kamailio! And looking forward to meet some of you at Kamailio World Conference 2016!

VUC 588 – Kamailio Updates

Mon, 04/04/2016 - 21:30
It’s been a while since last session about Kamailio during the weekly VoIP Users Conference moderated by Randy Resnick. Next Friday, on April 8, 2016, join the VUC session starting at 12:00 EDT (17:00 in London, 18:00 in Berlin, Madrid Paris, Rome) to get updates about the new features introduced by the latest major releases of Kamailio, what are the plans for future development and get a preview of what’s going to happen at Kamailio World Conference (May 18-20, 2016, in Berlin).Daniel-Constantin Mierla, co-founder of Kamailio project, will be there to give the updates and answer the questions from the audience.You can join the conference remotely via SIP or dialling one the many local PSTN numbers as well as listening via web or watching the video live streaming. Questions can be posted also via IRC channel #vuc on freenode.net. You can see more details about the ways to connect on the VUC website:Book the date in your calendar and join the session next Friday!

Kamailio v4.4.0 Released

Wed, 03/30/2016 - 21:50
March 30, 2016Kamailio v4.4.0 is out –  a new major release, bringing out new features and improvements added during about seven months of development and one and a half month of testing.In short, this major release brings 9 new modules and enhancements to more than 60 existing modules, plus components of the core and internal libraries. Detailed release notes are available at:The release series 4.4.x is expected to be the last starting with number 4, next major release is planned to be 5.0.0, which should get Kamailio to a new era — there are already ongoing discussions on users mailing list about the changes to be done as well as a wiki page was created to collect the relevant ideas for 5.0.x. Join us to design and develop v5.0.0!Enjoy SIP routing in a secure, flexible and easier way with Kamailio v4.4.0!Thank you for flying Kamailio and looking forward to meeting you at Kamailio World Conference 2016!

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