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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.comBlogger853125
Updated: 33 min 13 sec ago

Kamailio World 2019 – Sponsorship Opportunity

Mon, 01/28/2019 - 17:33
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 [1] of the event website or ask for a personalized package that can be tailored to suit better your needs [2].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.See you in Berlin!

Kamailio v5.2.1 Released

Wed, 01/16/2019 - 17:32
Kamailio SIP Server v5.2.1 stable 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.Resources for Kamailio version 5.2.1Source 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/5.2Relevant 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:Do not forget about the next Kamailio World Conference, taking place in Berlin, Germany, during May 6-8, 2019. The registration is open!Thanks for flying Kamailio!

Kamailio World 2019 – Registration Is Now Open

Mon, 01/14/2019 - 22:00
The registration for the 7th edition of Kamailio World Conference is now open! More details and registration forms are available on the website: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.Keep an eye on the website of the event, soon we will publish more details about accepted speakers and the first draft of the agenda.Looking forward to meeting many of you in Berlin at Kamailio World 2019!

Planning Fosdem 2019

Tue, 01/08/2019 - 16:00
Fosdem 2019 is approaching, so we surveying to see who from the community plans to go to the event. We also plan to organize again a dinner on Saturday evening, a tradition for our project at the past 10 editions or even more.Henning Westerholt will give a presentation about Kamailio in the RTC Devroom.Several other developers plan to go to the conference as well, among them Daniel-Constantin Mierla, Federico Cabiddu and Alexandr Dubovikov, therefore we open here the invitation to join for everyone in our community. Of course, at Fosdem will be developers from other VoIP projects, like Asterisk, Janus, CGRates, Homer, Jitsi, …At the past editions we typically had two “kamailio” events:
  • (1) an “ad-hoc” developers meeting in the cantina (or other available
    room around) to discuss about short term plans for Kamailio — time and
    place being decided as we meet there between us (expected in the
    afternoon of Saturday or during Sunday).
  • (2) a dinner at a place nearby, with other VoIP folks joining us
If you plan to go to Fosdem and want to join the dinner, announce yourself on sr-users@lists.kamailio.org mailing list. Just be aware that you have to pay for your food and drinks at the dinner, unless we are going to be surprised again by a generous sponsor that covers partially or completely to dinner.If you need more details about Fosdem, the website is:Thanks for flying Kamailio!

Happy New Year 2019!

Tue, 01/01/2019 - 17:00
Fast, so fast, the 2018 is gone, one of those years of consolidation in terms of development and community activity for the Kamailio project, with another major release and an amazing edition of Kamailio World Conference! Thank you everyone for contributing to the project!We are now looking forward to a healthy and fruitful year 2019 to all Kamailio friends and the project itself, once again hoping to meet many of you at the 7th edition of Kamailio World Conference and other events around this magnificent world!Thanks for flying Kamailio!Enjoy 2019 and stay safe!Happy New Year!

Merry Christmas and Happy Holidays!

Mon, 12/24/2018 - 23:00
Slowly getting to another end of a year, the 18th since the project was started — a fruitful 2018, with a great evolution for project development and plenty of community interactions. We had another major releases, 5.2 in November and, after quite long time, a meeting dedicated for Kamailio developers, done by end of September 2018, in Dusseldorf, Germany. We are grateful to all developers and community members that contributed to moving the project further!The 6th edition of Kamailio World happened in the spring of 2018, now we prepare for the 7th edition during May 6-8, 2019, in Berlin, Germany. We look forward to meeting many of the community members there!Merry Christmas and Happy Winter Holidays!Santa is flying Kamailio!

Performance Tests For KEMI Scripting Languages

Tue, 12/11/2018 - 16:53
Two editions ago, Kamailio (with version 5.0) introduced the scripting languages embedded interface (short name KEMI) that enabled using Lua, Python, JavaScript or other scripting languages to build SIP routing logic. During Kamailio v5.1.x cycle, this framework became more mature and started to show its benefits: besides ability to reload the routing scripts at runtime, each of these languages come with tons of extensions and offer a more flexible programming eco-system.When preparing the latest major release of Kamailio (the v5.2.0) and the days after, I run some tests to compare the performances of using native scripting versus Lua and Python (v2). The tests were not focused on measuring the capacity of Kamailio, but to see the difference in executing similar SIP routing logic with different scripting languages.The results and conclusions are collected in a wiki page:It was pleasant to discover that native scripting, Lua and Python perform more or less the same, the differences are so small that can be just a side effect of what other applications are running at that moment in the system. The tests were related to processing registrations with user authentication, using MySQL as a backend.A test consisted of 20 000 registrations for 10 users being sent at a rate of 4000 requests/second, with a limit of 10 000 at the same time. Note that each registration was challenged for authentication and resent with credentials, then authenticated (this performs a MySQL query) and replied with 200ok. The average of running the routing script ranged form 60 to 80 microseconds, most of them being around 70 microseconds (for a better understanding, that means more than 10 000 authenticated registrations per second).The wiki page includes the sipp scenario, used configs and tools to perform the tests, therefore anyone can try to run and check the results.A bit of a surprise was to see that Python has really good results. I ran couple of basic tests during the development of KEMI framework for Kamailio 5.0 and using Python seemed slower. Not this time, so I will have to re-run the tests just to be sure I haven’t forgotten something.Anyhow, during the development of Kamailio 5.2, there were couple of additions to KEMI to improve the performances. Among the most relevant were to export several functions that are equivalent to some native scripting language conditions, such as matching From/To URIs against myself keyword or matching the SIP methods.The plan is to run the tests for the other scripting languages supported by KEMI at this moment, respectively Python (v3), JavaScript, Ruby and Squirrel. It would be also interesting to see the results of using Lua scripting with LuaJIT (an addition added for Kamailio v5.2 as well).Should you run the tests from the wiki, let us know the results for your environment via sr-users@lists.kamailio.org mailing list.Thanks for flying Kamailio!

Kamailio World 2019 – Call for Presentations

Mon, 12/10/2018 - 12:08
We would like to announce that Call for Presentations at Kamailio World 2019 is now open. You can submit your proposal or see more details at:The 7th edition of the event takes place again in Berlin, Germany, during May 6-8, 2019. Expect over 150 participants, developers and community members as well as representatives from other popular open source VoIP projects such as Asterisk or FreeSwitch.Looking forward to meeting many of you there!Thanks for flying Kamailio!

Kamailio 5.2: Deb And RPM Repositories

Fri, 11/30/2018 - 12:05
The packages of Kamailio v5.2.0 for Debian/Ubuntu and RPM-based distributions (CentOS, RedHat, OpenSuse, Fedora) are available to use.For Debian/Ubuntu, you can set the APT repository on your system to the links provided at:For the RPM-based distributions, their repositories are listed at:Enjoy!Thanks for flying Kamailio!

Kamailio v5.2.0 Released

Wed, 11/28/2018 - 19:30
November 28, 2018Kamailio v5.2.0 is out –  a new major release, bringing new features and improvements added during nine months of development and about two months of testing.In short, this major release brings 6 new modules and enhancements to more than 70 existing modules, plus components of the core and internal libraries as well as optimizations for embedded interpreters (KEMI framework). Detailed release notes are available at:This is the third major release in the series of 5.x.y versions. Besides adding plenty of new features, a lot of development was directed to unify the exports structure for modules, enhance dispatcher (the load balancer module), tls, RTP processing and to make available more functions to KEMI interface.Enjoy SIP routing in a secure, flexible and easier way with Kamailio v5.2.0!Thank you for flying Kamailio and looking forward to meeting you at Kamailio World Conference 2019!

Announcing Next Kamailio World Conference, May 6-8, 2019, in Berlin

Mon, 11/26/2018 - 12:00
The next edition of Kamailio World Conference is planned to take place at the same location like the past editions, respectively hosted by Fraunhofer Fokus and Forum in the city center of Berlin, Germany, during May 6-8, 2019.The website of the event and the call for presentations will be launched in the near future, stay tuned!Meanwhile, you can browse the website of the previous edition in order to get an idea about the type of event and its content:Enjoy the upcoming winter or summer season!Thanks for flying Kamailio!

Releasing Kamailio v5.2.0

Mon, 11/19/2018 - 11:59
We are considering to release v5.2.0 (the first stable version out of branch 5.2) next week, likely on Wednesday, Nov 28, 2018.It still allows a bit more than a week of testing as well as well time to prepare the online resources for it (documentation, wiki pages, upgrade guidelines, etc…).If there is any issue you are of and not yet reported to github.com bug tracker, do it as soon as possible to give it a chance to be fixed in time for the next major release.Thanks for flying Kamailio!

Development Open For Kamailio v5.3

Wed, 11/07/2018 - 11:58
With the creation of branch 5.2 done yesterday, the master branch is from now on open for adding new features, to be part of future release series v5.3.x.Based on the workflow used during the past years, the next future release v5.3.0 should be out after another 8-10 months of development, plus 1-2 months of testing, so sometime in the summer or autumn of 2019.Even now there is a new pull request on its way to be merged in master branch that is adding a new module – the rtp_media_server:So the new development cycle is starting very promising. Expect plenty of enhancements and new feature during the development of v5.3 series.Thanks for flying Kamailio!

Kamailio Git Branch 5.2 Created

Tue, 11/06/2018 - 19:56
The branch 5.2 has been created in the git repository of Kamailio, to be used for releasing v5.2.x series.To check out this branch, the following commands can be used:git clone https://github.com/kamailio/kamailio kamailio-5.2
cd kamailio-5.2
git checkout -b 5.2 origin/5.2Pushing commits in this branch:git push origin 5.2:5.2Note that 5.2 is an official stable branch, so only bug fixes, missing kemi exports (to be discussed on sr-dev if something needs to be sorted out about the purpose of the exports) or improvements to documentation or helper tools will be pushed to this branch.As usual, if there is a bug fixed, the commit will be pushed first to master branch and then cherry picked to 5.2 branch.In few weeks, the first release from branch 5.2 will be out, respectively Kamailio v5.2.0.Thanks for flying Kamailio!

FOSDEM 2019 – RTC DevRoom – CFP And Volunteers

Mon, 10/29/2018 - 20:30
FOSDEM 2019 (the free and open source software developers meeting) takes place during the 2nd and the 3rd of February 2019 in Brussels, Belgium:The application to host a Real Time Communication devroom has been accepted and the call for presentations and volunteers has been started. The announcement with all the relevant details has been sent to the mailing list:Consider to submit a proposal if you have worked on something FOSS and interesting to share that is related to real time communications.It is very likely that Kamailio project will participate once again at the event with a consistent group of developers and community members, continuing our more than 10 years long tradition to meet for a dinner and catch up on what new around RTC world!Thanks for flying Kamailio!

Kamcli v1.1.0 Released

Tue, 10/16/2018 - 21:30
Kamcli v1.1.0 has been released. It is a command line management tool for Kamailio deployments, aiming to be a modern alternative to the venerable kamctl.Kamcli offers a set of subcommands for controlling Kamailio, among them:
  • subscriber – manage SIP subscribers
  • ul – manage user location records
  • address – manage permissions address records
  • aliasdb – manage database aliases
  • db – manage kamailio database content
  • dialog – manage active calls (dialog)
  • dialplan – manage dialplan records
  • dispatcher – manage load balancer (dispatcher)
  • group – manage group membership records (acl)
  • moni – continuous refresh of the values for a list of statistics
  • mtree – manage memory trees (mtree)
  • ps – print the details for kamailio running processes
  • rpc – interact with kamailio via jsonrpc control commands (alias of jsonrpc)
  • rpcmethods – return the list of available RPC methods (commands)
  • speeddial – manage speed dial records
  • srv – server management commands (sockets, aliases, …)
  • stats – get kamailio internal statistics
  • tls – management commands for TLS profiles and connections
  • uptime – print the uptime for kamailio instance
How to install kamcli and examples of usage can be found at:This release has been tagged on Github repository at:Enjoy! Thanks for flying Kamailio!

Development Of Kamailio v5.2.x Series Is Frozen

Fri, 10/05/2018 - 10:12
Here we mark the freezing of development for Kamailio v5.2 series.From now on, for few weeks, no new new features will be pushed in the master branch. Development can still be done, but should be hold in developers’ GIT personal branches.Once the branch 5.2 is created (expected to happen in 3-4 weeks), the master branch becomes again open for new feature. Meanwhile the focus has to be on testing current code.Work on related tools (e.g., kamctl) or documentation can still be done as well as getting the new modules in 5.2 in good shape, plus adding exports to KEMI interface (which should not interfere with old code).The entire testing phase is expected to be 4 to 6 weeks, then the release of v5.2.0 will be out.Thanks for flying Kamailio!

Kamailio v5.1.6 Released

Thu, 10/04/2018 - 19:00
Kamailio SIP Server v5.1.6 stable is out – a minor release including fixes in code and documentation since v5.1.5. The configuration file and database schema compatibility is preserved, which means you don’t have to change anything to update.Kamailio® v5.1.6 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 5.1.6Source 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/5.1Relevant 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:Thanks for flying Kamailio!

Astricon 2018

Mon, 10/01/2018 - 10:09
Astricon 2018, the Asterisk users’ conference, is just several days away. It takes place again in Orlando, FL, USA, during October 9-11, 2018.Kamailio is very well represented at this edition, besides having a stand in the expo floor, there will be presentations by Alex Balashov, Daniel-Constantin Mierla and Fred Posner.You can find the schedule and more details about the event at:We hope to see many of you in Orlando!Thanks for flying Kamailio!

Kamailio Developers Meeting, Sep 27-28, 2018, in Dusseldorf

Sat, 09/29/2018 - 10:02
Kamailio SIP Server project is organizing a meeting of its developers during September 27-28, 2018, hosted by sipgate.de in Dusseldorf, Germany.The event is intended to facilitate the interaction between Kamailio developers and to offer a convenient environment for working together on several topics of high interest for the project, including writing code for Kamailio and its tools, improving documentation, or discuss about future development.Everyone from the community is welcome to join. Please note we have a limited capacity of 20 seats in the meeting room. Also, very important to be aware that this is not an event to learn how to use Kamailio.More details about the event, the venue, how to register, are available at:Looking forward to those two intensive hacking Kamailio days in Dusseldorf!Thanks for flying Kamailio!

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