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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.comBlogger743125
Updated: 59 min 39 sec ago

Kamailio 5.0 – Embedded JavaScript Execution

Mon, 03/27/2017 - 15:48
It is today one month since the release of a new major version for Kamailio SIP server, respectively v5.0.0, one with a consistent set of new features and enhancements:Among its brand new features is the ability to execute JavaScript (ECMAScript) code embedded inside kamailio.cfg script — this is possible via app_jsdt module. The module relies on DukTape JavaScript engine, which is imported in the Kamailio source code, therefore it has no external library dependency.It is also possible to use JavaScript to write entirely the SIP routing blocks for kamailio.cfg via KEMI framework, offering a more extensive language to control how next hop is selected. Next are the links showing such example:Among app_jsdt module features:
  • can reload the routing functions without kamailio restart via an RPC command
  • execute inline JavaScript within a native kamailio.cfg or write entire SIP routing blocks in JavaScript
  • no external dependencies, it compiles with same tools and libraries as Kamailio core
  • access to full scripting language constructs, expressions and statements, with extensive documentation, for building SIP routing language
More about configuration file engines for Kamailio 5.0 will be presented at the next Kamailio World Conference, May 8-10, 2017, in Berlin, Germany. See you there!

Kamailio World 2017 – Selection Of Presentations

Fri, 03/03/2017 - 11:18
The event structure of the Kamailio World 2017 (May 8-10, in Berlin) has been published along with a selection of the conference workshops and presentations. It is going to be agin a balanced content, combining sessions on how to use Kamailio, sharing knowledge on security and scalability as well as presentations about related tools and applications from the Real Time Communications area.You can see more details at:Soon the first version of the schedule should become available, keep an eye on the event website!Thanks for flying Kamailio!

Kamailio v5.0.0 Released

Mon, 02/27/2017 - 21:49
February 27, 2017Kamailio v5.0.0 is out –  a new major release, bringing 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 6 new modules and enhancements to more than 50 existing modules, plus components of the core and internal libraries. Detailed release notes are available at:This release brings an increase to major number, 5.0.0 to be the first in a series of 5.x.y versions. Among the relevant updates being the source code tree restructuring, the KEMI framework which allows writing the routing blocks in other embedded languages such as Lua, JavaScript or Python, and the removal of MI control framework (replaced by RPC).Enjoy SIP routing in a secure, flexible and easier way with Kamailio v5.0.0!Thank you for flying Kamailio and looking forward to meeting you at Kamailio World Conference 2017!

Kamailio World 2017 – First Group Of Speakers Announced

Tue, 02/14/2017 - 15:32
The first group of speakers at Kamailio World 2017 has been announced, you can see their details at:The event takes place in Berlin, Germany, during May 8-10, 2017. There is still a large set of proposal under revision, more details about accepted one being scheduled to be published in the near future.This is the 5th edition of an event focused on realtime communications, besides the Kamailio project, you can meet there the people behind other popular open source projects such as Asterisk, FreeSwitch, Jitsi or SEMS, as well as other well known players from the industry.The event starts on Monday, May 8, around noon with technical tutorials, and continues for the next two days with conference sessions. The topics span from experiences on building and deploying typical VoIP services, to WebRTC, IoT and 4/5G technologies.Registration is open, don’t delay too long if you want to participate, the number of seats is limited:Looking forward to meeting many of you in Berlin!

Kamailio Branch 5.0 Created

Thu, 02/09/2017 - 18:35
The GIT branch 5.0 has just been created for Kamailio source tree, it will host the release series 5.0.x. To get this branch from GIT, you can use: git clone https://github.com/kamailio/kamailio.git kamailio
cd kamailio
git checkout -b 5.0 origin/5.0Hopefully before the end of the month the full release of 5.0.0 will be out.From now on, any corresponding fix has to be pushed first to master branch and then cherry-picked to branch 5.0. No new features can get in branch 5.0. Enhancements to documentation or helping tools are still allowed.Thanks for flying Kamailio!

LCR System With Kamailio On CentOS 7

Wed, 02/08/2017 - 18:34
A very descriptive article has been published by voztovoice.org showing how to build a Least Cost Routing (LCR) system for IP telephony using Kamailio on CentOS 7. The article is in Spanish, Google translate being quite helpful, but the snippets of config and screens shots make it easier to understand over all.The article is available at:Whenever you write an article about using Kamailio or you become aware of a similar article, do not hesitate to notify us, we gladly publish a news about it.Looking forward to meeting many of you at Kamailio World Conference, May 8-10, 2017, in Berlin, Germany!Thanks for flying Kamailio!

Fosdem 2017 – Kamailio - VoIP Social Event

Fri, 02/03/2017 - 18:33
The Kamailio & VoIP friends dinner at Fosdem 2017 is planned to start at 20:00, on Saturday, Feb 4, 2017. The address is:Le Pickwick
Avenue Adolphe Buyl 79
1050 Ixelles, BelgiumIf you announced the intention to participate at the dinner before Feb 1, 2017, your seat is reserved. If you did it afterwards, please contact Daniel-Constantin Mierla during RTC Devroom to confirm the availability of the seats.

Kamailio World 2017 – Registration Is Open!

Thu, 01/26/2017 - 16:52
The registration for the 5th edition of Kamailio World Conference & Exhibition is now open! More details and registration forms are available on the website of the event [1].Like at the previous editions, the event spans over three days, May 8-10, 2017, taking place in Berlin, Germany. The first day contains the technical tutorials, the following two days are for conference presentations and exhibition.The Call For Speakers is still in progress, but we already have a consistent group of confirmed speakers, with a very good balance of new and returning presenters, among them: Allison Smith, the famous world wide IVR and Asterisk voice; Fred Posner, Kamailio’s USA-based heavyweight; James Body with the challenging Dangerous Demos; Randy Resnick, the founder of the weekly VoIP Users Conference podcast; Sandro Gauci, the author of SIP Vicious (aka SIP Friendly Scanner).As usual, expect a big group of Kamailio developers such as Alex Balashov, Carsten Bock, Olle E. Johansson, Andreas Granig, Victor Seva, Elena-Ramona Modroiu, Dragos Vingarzan, Daniel-Constantin Mierla as well as members of Asterisk and FreeSwitch projects.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 2017![1] – https://www.kamailioworld.com/k05/registration/

Kamailio – Ansible Role

Sun, 01/22/2017 - 23:30
Ansible is a system for rapid deployment of services. Alberto Llamas has shared a link to his Ansible Kamailio Role that could be used as starting point for many people when deploying their Kamailio:Over the time there were other people sharing similar resources, such as the one in the article:We welcome any resource, blog post or tools that make it easier to deploy and work with Kamailio and gladly publish news about them. Should you have or know such resource, do not hesitate to contact Kamailio project!Thanks for flying Kamailio!

Kamailio v4.4.5 Released

Wed, 01/18/2017 - 11:01
Kamailio SIP Server v4.4.5 stable is out – a minor release including fixes in code and documentation since v4.4.4. The configuration file and database schema compatibility is preserved, which means you don’t have to change anything to update.Kamailio v4.4.5 is based on the latest version of GIT branch 4.4. We recommend those running previous 4.4.x 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 v4.4 branch.Resources for Kamailio version 4.4.5Source 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/4.4Relevant notes, binaries 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:We hope to meet many of you at the 5th edition of Kamailio World Conference, the project’s annual event, scheduled for May 8-10, 2017, in Berlin, Germany!Thanks for flying Kamailio!

MacOS - View CPU Temperature

Sun, 01/15/2017 - 13:03
There are many situations within a day when the CPU fans are going crazy, being it some heavy loaded JavaScript site, compiling Kamailio or other applications. I was looking for tools, either open source or from "trusted?" sources that I can use to check the CPU temperature on my MacOS Sierra, but should work also on older MacOSX versions.

I ended up installing two applications, one command line tool and the other with GUI, both are free to use:

iStats is open source, Ruby is already installed on Mac OS, so installing it is as simple as running in a terminal:
sudo gem install iStatsThen execute istats and you should see something like:


Besides the CPU temperature, it shows fan and battery stats.
Intel Power Gadget - not open source (or I missed the link to the repo), but it is free to use and made by the guys that manufacture the CPU, so I expect to get more accurate values. After installation, once you start it and let you run for a while, you should see something like:


It shows the usage of power by CPUs, along with frequency and temperature, tracking the history of the values and displaying the charts for them.
Hopefully this post will save some time for people looking for similar tools!

The Start Of 2017 – Upcoming Events

Thu, 01/12/2017 - 12:48
We are less than two weeks into 2017 and there are plenty of options in the short term to meet with Kamailio around the world:An of course, don’t forget the Kamailio World Conference 2017, May 8-10, Berlin, Germany.If you are in the area of an event, but you don’t participate directly to it, just ask around in our forums, there might be group gatherings outside of them, such as dinners, meetups, … where anyone can join or simply people being there want to meet you. For discussions about these events, you can use our public mailing lists.If you organize or you are aware of events involving Kamailio, do not hesitate to contact us, we will gladly publish news about them.Looking forward to meeting many of you around the globe during 2017!Thanks for flying Kamailio!

Kamailio - New Module: ims_ocs

Wed, 01/11/2017 - 12:46
With a rather busy end of 2016, several additions to Kamailio missed the chance to get into the news as they were imported in the repository. Now it’s time to catch up with some of them, given that development is frozen and the focus is on testing master branch in order to prepare the v5.0.0 release.One of the new modules that will make it into v5.0.0 is named ims_ocs. As the prefix suggests is related to Internet Multimedia Subsystem (aka IMS), the core platform for 4G/VoLTE mobile networks. More specifically, it is an implementation of a simple Online Charging Server, communicating with ims_charging module via Diameter-Ro interface.The module was developed by the folks at NG Voice, led by Carsten Bock. More details about the module can be found in its readme docs:Stay tuned for more news about what’s new in upcoming Kamailio v5.0.0!Thanks for flying Kamailio!

Kamailio on Cluecon Weekly – Jan 11, 2017

Tue, 01/10/2017 - 16:00
On Wednesday, January 11, 2017, at 18:00UTC (12:00CT, 18:00 London, 19:00 Berlin), the Cluecon weekly conference call will focus again on Kamailio and FreeSwitch. Daniel-Constantin Mierla will be joining the call, presenting what is new in latest Kamailio, what to expect at Kamailio World Conference 2017, 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:Thanks for flying Kamailio!

Kamailio World 2017: Call For Speakers

Mon, 01/09/2017 - 16:42

Submission of presentation proposals for Kamailio World 2017 is open. Deadline for submission is February 10, 2017, notification of accepted proposals will be done latest on March 01, 2017.Be aware that interesting proposals can be accepted before the deadline, we plan to have two intermediate review sessions before February 10, 2017, announcing any accepted presentations immediately. Note also that at the previous edition there were more proposals than available slots and we expect to happen again this time. Therefore it is recommended to send your proposal as soon as possible, do not wait till deadline.To submit the proposal, fill in the web form at:The main topic of the conference is Real Time Communications, with the majority of the content being about Kamailio and other open source projects in the area. However, like for the past editions, we welcome very interesting presentations beyond those subjects.If you are interested to look at the agenda from previous edition, visit:Have a great 2017! Looking forward to meeting many of you at the next Kamailio World!

Kamailio v5.0 – Development Frozen

Thu, 01/05/2017 - 10:00
The development (master) branch of Kamailio enters now in pre-release phase for version 5.0.0. Therefore, no new feature should be pushed to master until we create a dedicated branch for 5.0 (expected to be in about 4 weeks or so).If in doubt to push or not a commit to master branch, push it first on a personal branch (or attach to an email) and discuss it on sr-dev mailing list. The new modules can be a bit more dynamic if there is need to get them to the right shape (e.g., like decision to rename functions, parameters or adjust database structure).We hope to get many people involved in testing, to reach a stable state before releasing 5.0.0. If you want to get involved and need assistance, don’t hesitate to write to mailing lists.Besides the new features, there were two major changes for 5.0:
  • source code tree restructuring – this should not affect the stability of the code, only installation scripts or packaging may still need tuning
  • mi (management/control interface) code has been removed. SIP routing code should not be affected by this change that much, but testing of RPC commands needs a special care. There are few RPC commands not ported yet from the MI code, they can be done during the testing period
Moreover, help with updating the wiki page for migration from 4.4 to 5.0 as well as what is new in 5.0 is very appreciated. More updates about them very soon.Many thanks to everyone involved in development of 5.0 and the early testers that played with master branch so far.Thank you for flying Kamailio!Looking forward to meeting many of you at Kamailio World 2017!

Kamailio - MI Code Removed

Wed, 01/04/2017 - 16:39
No active MI (aka management interface) related code should be in Kamailio master branch starting with today, Jan 4, 2017. The internal library kmi, the modules mi_datagram, mi_fifo, mi_xmlrpc, mi_rpc and pua_mi were removed.The MI was a custom mechanism introduced in the early days of the project (like 2001-2002) to interact with Kamailio at runtime, using a line-based text protocol through FIFO file, with alternative transport via datagram sockets or xmlrpc. It was declared deprecated several years ago in favour of using the RPC interface. The RPC interface offers a better structured interaction protocol, with transports for XMLRPC, BINRPC and JSONRPC over HTTP(S), TCP, UDP, UNIXSOCKET or FIFO files.Couple of modules still have some mi code disabled with ifdefs, they are pending the port to RPC commands. These are: carrierroute, ims_dialog, mohqueue, p_usrloc, userblacklist, utils. They should be updated in the next few days.With MI code removed, the code base got slimmer, the future development and maintenance effort is reduced.From now on, the RPC interface has to be used for interacting with kamailio at runtime.The CLI tools were updated as well:Helping with testing the RPC commands is very appreciated — open an issue on bug tracker whenever you discover a problem.Thanks for flying Kamailio!

Wishing A Safe And Happy 2017!

Sun, 01/01/2017 - 11:00
2016 has reached its end, a special one for Kamailio by celebrating 15 years of development! Thank you everyone for contributing to the project!We are looking forward to a great 2017, the release of v5.0.0 is around the corner! We wish a healthy and prosperous year 2017 to all Kamailio friends, hoping to meet many of you at Kamailio World Conference and other events around the globe!Thanks for flying Kamailio!Enjoy and stay safe!Happy New Year!

Merry Christmas and Happy Holidays!

Sat, 12/24/2016 - 23:00
Passing the 15 years of development marker for Kamailio project few months ago, we are now approaching the end of 2016. A long list of people devoted a lot of time in sustaining the project with resources for development, support and advertising. So this is a good moment to thank and greet them, everyone involved in Kamailio project, old and new friends, developers, contributors, the engaged and warm community members.We are very close to the moment of freezing the version 5.0.0, a new major milestone in the project evolution, with a restructured source code tree, cleaner and slimmer code base, a new flexible configuration file framework that allows building SIP routing script in embedded languages such as Lua and Python, a.s.o. – all making a very solid foundation for developing next releases! Good premises to expect a lot of new stuff in 2017!The 5th edition of Kamailio World Conference, the project’s annual event, is scheduled for May 8-10, 2017, in Berlin, Germany. We look forward to meeting many of the community members there!Merry Christmas and Happy Winter Holidays!Santa is flying Kamailio!

Kamailio - MI Code To Be Removed

Tue, 12/20/2016 - 16:29
Management Interface (MI), the old line-based text protocol interface to interact with Kamailio is going to be removed in the near future. It was declared obsolete several years ago, when we introduced the RPC interface. With upcoming version 5.0 already having the code source tree restructured, this step makes a better and slimmer foundation for next generation of releases.The default configuration file is now shipping with jsonrpcs module and kamctl tool is using the RPC interface via jsonrpcs. The command line parameters for kamctl should be the same like for the past releases, but the output is now in jsonrpc format.The RPC interface is implemented by the following modules:
  • ctl – binary rpc protocol – with transport layers for FIFO file, unix sockets and IP sockets (both datagram and stream). It is the module used by the kamcmd tool.
  • jsonrpcs – jsonrpc protocol – with transport layers for FIFO file, unix and IP sockets (datagram) and HTTP via xhttp module. It is the module used by kamctl and kamcli tools.
  • xmlrpc – xmlrpc protocol – with transport layer for HTTP
If you were using mi_fifo or mi_datagram modules, then you can switch to jsonrpcs module (it offers the transports for the two mi modules). If you were using mi_xmlrpc, then you can switch to xmlrpc module.Thanks for flying Kamailio!

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