Wednesday, April 17, 2019

Kamailio World 2019 – The Schedule Of The Event

The first version of the schedule for Kamailio World Conference 2019 is out. You can see it at:
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.
Obviously, the majority of sessions focus on Kamailio, touching security extensions, deployments in containerisation environment with Docker, how to deal with outages, billing systems relying on blockchain technology, optimizations for KEMI scripting (SIP routing logic in Lua, Python, JavaScript, Ruby, …), Kamailio metrics and monitoring with Prometheus, the new RTP media module, the event routes and the timers, an open source SBC using Kamailio and RTP engine as well as remarks about using Kamailio as an SBC, replication and data sharing for multi-node Kamailio deployments.
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.
Two weeks and a half to go, no much time left to register and participate at this edition, hurry up! We look forward to meeting many of you in Berlin during May 6-8, 2019!

Thursday, April 11, 2019

Kamailio v5.1.8 Released

Kamailio SIP Server v5.1.8 stable 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.
Resources for Kamailio version 5.1.8
Source tarballs are available at:
Detailed changelog:
Download via GIT:
 # git clone https://github.com/kamailio/kamailio kamailio
 # cd kamailio
 # git checkout -b 5.1 origin/5.1
Relevant notes, binaries and packages will be uploaded at:
Modules’ documentation:
What is new in 5.1.x release series is summarized in the announcement of v5.1.0:
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:
Do not forget about the next Kamailio World Conference, taking place in Berlin, Germany, during May 6-8, 2019. It is less than one month away, the registration can be done here! Looking forward to meeting many of you in Berlin!
Thanks for flying Kamailio!

Tuesday, April 9, 2019

Kamailio World 2019 – Welcoming Nexmo Among The Sponsors

We are very pleased to welcome Nexmo among the sponsors of the next Kamailio World Conference, May 6-8, 2019, in Berlin, Germany.
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:
Looking forward to meeting many of you in Berlin!

Thursday, April 4, 2019

Kamailio v5.0.8 Released

Kamailio SIP Server v5.0.8 stable 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.
Resources for Kamailio version 5.0.8
Source tarballs are available at:
Detailed changelog:
Download via GIT:
 # git clone https://github.com/kamailio/kamailio kamailio
 # cd kamailio
 # git checkout -b 5.0 origin/5.0
Relevant notes, binaries and packages will be uploaded at:
Modules’ documentation:
What is new in 5.0.x release series is summarized in the announcement of v5.0.0:
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:
Looking forward to meeting many of you at the next Kamailio World Conference, May 6-8, 2019, in Berlin, Germany!
Thanks for flying Kamailio!

Tuesday, April 2, 2019

Kamailio World 2019 – Participation Grants

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:
  • conference [at] kamailioworld.com
or by contacting us via web form at:
Applications done until April 15, 2019, will be selected by April 18, 2019. Afterwards, if there are still available passes, they will be allocated in the first come first served policy.
The details for most of the presentations were published, the full agenda is expected to be ready in a matter of a few days. You can see more details at:
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!

Friday, March 29, 2019

Creating A C++ Based Module In Kamailio

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:
It is a very good reading, no matter you want to use C++ or C for extending Kamailio.
A couple of years ago, Luis has authored the ndb_cassandra module for Kamailio and has contributed to other modules along the years.
Should you be the author or just be aware of any online tutorial about Kamailio that worth sharing with the community, just contact us. We will be more than happy to publish a news about it.
Meanwhile, we hope to see many of you at the next Kamailio World Conference, May 6-8, 2019, in Berlin, Germany!

Tuesday, March 12, 2019

Kamailio World 2019 – Getting To Know Each Other Better

Time is flying fast, only about 8 weeks till the start of the 7th edition of Kamailio World Conference, happening again in Berlin, Germany, during May 6-8, 2019! The details for the most of accepted presentations are published, the full schedule to be made available in the near future.
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:
Ending the post with a big shut out to sipgate.de, a company that supported all our editions and even more events related to Kamailio project! They are also hiring VoIP engineers, and not only — you have the opportunity to join an amazing team in Dusseldorf, Germany.

Monday, March 11, 2019

Kamailio v5.2.2 Released

Kamailio SIP Server v5.2.2 stable 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.
Resources for Kamailio version 5.2.2
Source tarballs are available at:
Detailed changelog:
Download via GIT:
 # git clone https://github.com/kamailio/kamailio kamailio
 # cd kamailio
 # git checkout -b 5.2 origin/5.2
Relevant notes, binaries and packages will be uploaded at:
Modules’ documentation:
What is new in 5.2.x release series is summarized in the announcement of v5.2.0:
Thanks for flying Kamailio!