There can still be changes in the timelines, therefore keep an eye on the website for latest updates.
At this edition we have again sessions covering the major open source SIP/VoIP projects: Kamailio, Asterisk and FreeSwitch, as well as industry perspectives from a consistent group of renowned speakers. You can learn about the impact of 5G for local network innovations or how to build 4G networks with open source; scalability, reliability and security are well covered across many workshops and presentations; how to use latest Homer SIPCapture or what is new in Asterisk along with the no-touch auto provisioning system for FreeSwitch.
More relevant projects are represented, such as Wazo, dSIProuter, reSiprocrate, Janus Gateway, CGRateS, SIP3.io; differences on voice and video media processing; WebRTC – how to build a softphone with web technologies; the RTPEngine project developed at fast pace in the past two years, adding transcoding, call recording, audio play back and more, the talk about it is something that should not be skipped.
Three interactive sessions complete what looks like being the most impressive content of a single Kamailio World edition to date, respectively the traditional VoIP Visions panel, Dangerous Demos and the new show Your Deployment On Stage. The conference content is accompanied by two social events in the evenings on Monday and Tuesday: Berlin City Boat Trip and Cockatail Party.
Kamailio SIP Server v5.1.8stable is out – a minor release including fixes in code and documentation since v5.1.7. The configuration file and database schema compatibility is preserved, which means you don’t have to change anything to update.
Kamailio® v5.1.8 is based on the latest source code of GIT branch 5.1 and it represents the latest stable version. We recommend those running previous 5.1.x or older versions to upgrade. There is no change that has to be done to configuration file or database structure comparing with the previous releases of the v5.1 branch.
Note: the branch 5.1 is the previous stable branch. The latest stable branch is 5.2, at this time with v5.2.2 being released out of it. Be aware that you may need to change the configuration files and database structures from 5.1.x to 5.2.x. See more details about it at:
Nexmo is a global cloud communications platform, providing APIs and SDKs for messaging, voice, phone verification, advanced multi-channel conversations and video calling with the OpenTok API. With their Messages and Dispatch Beta you can now integrate with various communication channels including Facebook Messenger, WhatsApp and Viber. They support open source libraries for PHP, Python, Ruby, Node.JS, Java and C# .NET enabling you to build scalable communications features.
You can meet their team in Berlin during the Kamailio World 2019, get some pretty swag, ask more details about their services or even see some demos. Meanwhile you can follow their announcements via twitter handle @NexmoDev .
With the help of all our sponsors we are once again able to align an amazing list of speakers and presentations during the three days of workshops and conference sessions. The full agenda should be published in a matter of days. The seats are filling up, do not delay your registration if you want to attend the event:
Kamailio SIP Server v5.0.8stable is out – a minor release including fixes in code and documentation since v5.0.7. The configuration file and database schema compatibility is preserved, which means you don’t have to change anything to update.
Kamailio v5.0.8 is based on the latest version of GIT branch 5.0. We recommend those running previous 5.0.x or older versions to upgrade. There is no change that has to be done to configuration file or database structure comparing with the previous release of the v5.0 branch.
Important Note: this is the last official release planned from branch 5.0, unless in a matter of a few days major regressions are discovered. The official maintained stable branches at this moment are 5.1 and 5.2. If you are still running 5.0.x, it is now highly recommended to upgrade to a maintained version.
Note: the branch 5.0 is an old stable branch. The latest stable branch is 5.2, at this time with v5.2.1 being released out of it. Be aware that you may need to change the configuration files and database structures from 5.0.x to 5.1.x or 5.2.x. See more details about the latest stable series at:
We continue our tradition to offer 3 free passes to students and underrepresented people at Kamailio World Conference – thanks to the sponsors, we are able to offer them in 2019 as well. The passes cover the entire registration fee for all three days and the social networking events – costs with travel and accommodation have to be covered by the participants.
Anyone enrolled in an academic activity (including master and PhD programs) as well as underrepresented people can apply for one of the passes via email to:
Looking forward to meeting many of you in Berlin, at Kamailio World 2019! If you haven’t done it yet, secure your seat now, it’s going to be another great event about open source real time communications!
Luis Martin Gil from zaleos.net has published a blog detailing how to create a new module for Kamailio using C++. Although Kamailio is written in C, sometimes C++ can be a more convenient programming language for a module, especially if it needs to link against an external C++ library. Another useful benefit can be the ability to use existing unit testing frameworks. These and other benefits are detailed in the article published at:
Besides bringing a consistent group for distinguished speakers, with every edition we aim to improve the interaction between all the participants. From the first edition of the event we had the VUC Visions panel and Dangerous Demos, along with the cocktail party for social networking. At the previous edition we introduced the Ask Me Anything session with Kamailio core developers.
In 2019, we are adding two new sessions to offer even more chances that the participants know each other and network between them, opening the doors for partnerships and collaboration. These are:
Your Deployment On Stage – 5 Minutes 5 Slides – the session is coordinated by Markus Monka, head of IT infrastructure at sipgate.de. In this session any participant can come in the front of the others and speak about how they use Kamailio or what they are offering in the VoIP/RTC space. Think of it as a quick exposure, letting the others notice your presence so they can approach during the breaks or social networking event for further discussions. Time is limited, the proposals will be accepted in the order they are received. You can contact us starting now and get your 5min — use the web form for it. Important note: this session is not for accepted speakers, but for the registered attendees.
Berlin City Tour By Boat – with special credits to sipgate.de for sponsoring it, this new social networking event during the evening of May 6, 2019, aims to offer a relaxing time combine sightseeing in the beautiful city center of Berlin with enjoying a few drinks, overall enabling more chances to chat between us.
Looking forward to meeting many of you in Berlin at Kamailio World Conference 2019! You still have the chance to secure your seat now at the early registration fee:
Kamailio SIP Server v5.2.2stable is out – a minor release including fixes in code and documentation since v5.2.1. The configuration file and database schema compatibility is preserved, which means you don’t have to change anything to update.
Kamailio® v5.2.2 is based on the latest source code of GIT branch 5.2 and it represents the latest stable version. We recommend those running previous 5.2.x or older versions to upgrade. There is no change that has to be done to configuration file or database structure comparing with the previous releases of the v5.2 branch.
There will be sessions covering IMS/VoLTE and IoT, and, of course, we have the very popular two sessions that never missed a Kamailio World edition: Dangerous Demos with James Body and VUC Visions with Randy Resnick.
The open discussions session Kamailio – Ask Me Anything with the main developers or the project is again present and allows the attendees to address questions about their needs of using Kamailio and the development of the project.
A new kind of session is introduced at this edition Your Deployment On Stage – 5 Minutes 5 Slides enabling attendees to show what their are doing in the RTC space, what are their services and products, where and how Kamailio is used.
The details for other speakers and sessions will be published in the near future, stay tuned!
The selection procedure is ongoing, therefore expect the details for other speakers to be published in the near future.
The two interactive sessions present at all the past editions return in 2019, respectively VUC Visions and Dangerous Demos. In addition, we will have at least two other similar sessions to allow better interaction between Kamailio developers and the participants. As usual, expect presentations that go beyond Kamailio, covering Asterisk, FreeSwitch, VoLTE/IMS, WebRTC or IoT and technologies such as blockchain, containerisation and artificial intelligence.
To facilitate more networking between attendees, the 2019 edition is adding a new social event in the evening of the 6th of May, a boat trip on the channels of the city center.
The registration is open, you can do it now to benefit of the early registration price:
Kamailio were awarded ‘Open Source Excellence’, a key reason being the superb management of the project. Kamailio is used within huge networks and really is the secret weapon of many modern telcos. It is open source and, in the judges’ opinion, one of the best run projects around.
This recognizes the enormous effort made over more than 15 years by the development team and the community to keep Kamailio at the top of open source SIP/VoIP server applications, with a well defined development process and project organizing procedures.
With key targets such as flexibility, robustness, security and scalability, Kamailio continued to bring constantly a consistent set of new features with each major release (19 of them, from SER 0.8.x to Kamailio 5.2.x) and consolidated the trust in being a reliable application that can be used from start-ups to large established telcos and mobile operators.
It is actually a double celebration, because Fred Posner (twitter), one of our most prominent community members and advocate, was also awarded — citing: a genuine ‘Pre-Posthumous Legend’, a selfless, long standing contributor and supporter of the open-source community who has never sought the limelight.
Thank you SimCon for the award and Simwood for supporting the project for so many years!
Fact that open source development is huge nowadays couldn’t be felt better than at Fosdem 2019, practically during the first day was almost impossible to move around even on the corridors. It is irrelevant to say that I gave up quickly in the morning trying to attend any session, after failing to find seats in two of the rooms I wanted to get in.
Therefore the first day resumed to hallways, expo areas and cafeterias, meeting and chatting mainly with fellow Kamailians and VoIP/RTC folks. I got also the chance to see again and catch up with couple of other projects and organizations, among them: FSFE, OSI, SFC, the main Linux distros, Fossasia or GSoC.
Back to real time communications, being again being again part of organizing team for the DevRoom and the lounge…
The lounge was available during the both days, as usual filled with many XMPP projects and devs, joined by the Matrix.org team. The SIP/VoIP folks were never attracted by the lounge during all these years, but we always had a stronger presence in the DevRoom.
The RTC DevRoom took place in building H, with a fair large space accommodating about 150 seats, allowing us to run smooth during the day. I haven’t done much on Sunday apart of helping around and chatting with folks just outside.
Henning gave a presentation on what’s new lately on Kamailio project. Asterisk, Matrix, Homer SIP Capture, reSIProcate and CGRateS had their usual presentations as well and WebRTC was also a relevant stake of the day. A new comer this year was the sip3.io project, another SIP capture and troubleshooting tool. Of course, some presentations were about XMPP, open source devs doing a lot of cool stuff with that protocol as well.
On Saturday, we had our informal developers meeting about Kamailio, among participants, besides myself (Daniel-Constantin Mierla), there were Henning Westerholt, Federico Cabiddu, Alexandr Dubovikov and Dragos Oancea. Four were also at the developers meetup in Dusseldorf and we agreed that was something very productive and we should do it again. Couple of ideas were discussed about short term development, more to be announced via mailing lists.
The top of the event was as usual the dinner, done by Kamailio project every Fosdem edition since 2009 (see who was there 10 years ago). Like in the past few years, we were joined by other VoIP devs participating in the DevRoom, being nearly 40 participants (to give few more names: James Body, Tim Panton, Dan Jenkins, Daniel Pocock, Joachim Vanheuverzwijn). Lot of fun and interesting discussions!
Big thanks to Voxbone.com for sponsoring it and to Torrey Searle for helping to organize the dinner!
And to attract more of you to contribute to open source (and Kamailio), I have to mention that I got one of the most amazing gifts in more than 17 years of OSS development: home made Belgian chocolate truffles, amazing taste (thanks Joachim/Zoiper)!
Kamailio SIP Server v5.1.7stable is out – a minor release including fixes in code and documentation since v5.1.6. The configuration file and database schema compatibility is preserved, which means you don’t have to change anything to update.
Kamailio® v5.1.7 is based on the latest source code of GIT branch 5.1 and it represents the latest stable version. We recommend those running previous 5.1.x or older versions to upgrade. There is no change that has to be done to configuration file or database structure comparing with the previous releases of the v5.1 branch.
Note: the branch 5.1 is the previous stable branch. The latest stable branch is 5.2, at this time with v5.2.1 being released out of it. Be aware that you may need to change the configuration files and database structures from 5.1.x to 5.2.x. See more details about it at:
The year 2019 started once again at fast pace for Kamailio SIP Server project. Among the activities within the community, we have always tried to cover as much as possible the events related to open source and real time communication worlds.
During the next few months, there are many occasions where you can meet with Kamailio developers and community members, among them:
Asterisk World and ITExpo, Ft. Lauderdale, FL, USA, during January 29, 2019 – Fred Posner will give a presentation about Kamailio
Fosdem, Brussels, Belgium, during February 2-3, 2019 – Henning Westerholt will give a presentation about Kamailio as part of RTC Devroom. Daniel-Constantin Mierla, Federico Cabiddu, Alexandr Dubovikov, Torrey Searle and couple of other developers will attend the event and participate to our traditional dinner on the evening of the 2nd of February
Should you participate to those events, or just happens to be in the same city during those events and want to meet, get in contact with us via sr-users mailing list. We would love to get in touch and share the latest updates about Kamailio!
Three months and a bit till the start of Kamailio World 2019, the 7th edition of the conference about Kamailio project eco-system and the open source real time communication platforms.
If you want to contribute to the success of the event and benefit of a great exposure, you can join us as a sponsor. You can choose from several standard packages presented in the Sponsorship page  of the event website or ask for a personalized package that can be tailored to suit better your needs .
Many of the persons with relevant contributions to the evolution of the project are invited to the event, besides that the sponsorships help to cover the costs on site for all speakers. Also, we are offering again several grants to students interested in real time communications (last edition we had four students from Spain, Germany, Poland and Czech Republic). If SER-OpenSER-Kamailio helped you along the years, your support can add on board more people that can contribute back to the project as well as having a great event with many developers and the project community at Kamailio World 2019!
Do not hesitate to contact us for more details about sponsorship options.
Kamailio SIP Server v5.2.1stable is out – a minor release including fixes in code and documentation since v5.2.0. The configuration file and database schema compatibility is preserved, which means you don’t have to change anything to update.
Kamailio® v5.2.1 is based on the latest source code of GIT branch 5.2 and it represents the latest stable version. We recommend those running previous 5.2.x or older versions to upgrade. There is no change that has to be done to configuration file or database structure comparing with the previous releases of the v5.2 branch.
Like at the previous editions, the event spans over three days, May 6-8, 2019, taking place at our usual venue, in the hearth of Berlin city, Germany. The first day contains the technical tutorials, the following two days are for conference presentations and exhibition.
With this edition, we are introducing a new social networking event during the evening of the first day, the 6th of May. The goal is to allow more time for interaction and networking between participants, as well as get a taste of Berlin. Therefore, this event is organized outside of the conference venue, couple of options being considered at this time, like city tour by boat or double deck bus, pub or pizza party. The cocktail party will take place as usual, during the evening of the 2nd day, the 7th of May. More updates about this new social networking event in the near future!
Note also that the Call For Speakers is still in progress and we already have a consistent group of submissions, if you plan to present at Kamailio World 2019, hurry up with the proposal! Scalability and security, WebRTC, IMS and VoLTE or IoT with Kamailio as well as related projects such as Asterisk or FreeSwitch are among the topics to be covered this year.