Saturday, December 24, 2016

Merry Christmas and Happy Holidays!

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!

Tuesday, December 20, 2016

Kamailio - MI Code To Be Removed

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!

Wednesday, December 7, 2016

Kamailio - Source Code Tree Restructured

Today – Dec 7, 2016 – the source code tree of Kamailio project was restructured into a slim and clean root folder. This was done in order to better handle various components and make it easier to get into the source. You can browse it online at:
Here is a summary with the new locations:
  • src/main.c – the main c file of kamailio application
  • src/core/ – contains the source code for the core, including the subfolders for sip parser, memory manager and other core components
  • src/lib/ – contains the internal libraries
  • src/modules/ – contains the modules
  • utils/ – contains the tools used to operate kamailio such as kamctl and kamcmd
  • etc/ – configuration files
  • doc/ – resources for building documentations and core tutorials
  • pkg/ – packaging specs
  • misc/ – contains related resources, such as config examples, additional tools and scripts, vim syntax highlighting files, …
  • test/ – components related to testing
The Makefiles for building the application are in src/, with a new root folder Makefile that does target forwarding to src/. You should be able to use the same make commands inside root folder as well as inside src/.
The kamailio binary is built in src/ directory.
For example, next are the commands to build and run kamailio from source code tree, with debug mode logging to terminal:
git clone
cd kamailio
make all
./src/kamailio -f etc/kamailio.cfg -L src/modules/ -E -e -ddd
While some small adjustments may still be done, we hope that the new structure is going to make the long term management and development of the project smoother.
Thank you for flying Kamailio!

Monday, November 28, 2016

Siremis v4.3.0 Released

A new version of Siremis, the web management interface for Kamailio, has been released recently, respectively v4.3.0. The main work was towards making it compatible with PHP 7 and the new constraints from MySQL 5.7+. The announcement is available at:
As a side note, the organizing of the 5th edition of Kamailio World Conference has started, being planned for May 8-10, 2017, in Berlin, Germany. More details will be available in the near future!
Thanks for flying Kamailio!

Wednesday, November 9, 2016

Kamailio v4.4.4 Released

Kamailio SIP Server v4.4.4 stable is out – a minor release including fixes in code and documentation since v4.4.3. The configuration file and database schema compatibility is preserved.
Kamailio v4.4.4 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 4.4.4
Source tarballs are available at:
Detailed changelog:
Download via GIT:
 # git clone git:// kamailio
 # cd kamailio
 # git checkout -b 4.4 origin/4.4
Relevant 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:
Thanks for flying Kamailio!

Wednesday, November 2, 2016

Kamailio IRC Devel Meeting – Nov 2016

A new Kamailio IRC devel meeting to has beep proposed to discuss the current major issues and the plans for next Kamailio releaseThe target time frame is Nov 08-10, 2016 (Tuesday, Wednesday or Thursday).
If many developers are not available, it can postponed it to another date in the near future (make proposals if that is the case for you).
A wiki page has been created for it:
Add there the topics that you want to be discussed and your availability.
Thanks for flying Kamailio!

Tuesday, November 1, 2016

Snappy Kamailio – TADHack Global 2016 Winner

Coordinated by its founder Alan Quayle, with the help of many local teams across the world, TADHack Global 2016 edition was organized during October 14-16 in over 30 cities, counting over 2600 registrations that resulted in over 170 hacks. It is probably one of the largest hackathons recorded so far, maybe even the largest, anyhow, for sure in the telecom world.
One of the cities involved in the hackfest was Berlin, the local event was hosted by VoIP Labs, being managed by Dennis P. Kersten. On a rainy weekend, a bunch of VoIP enthusiasts met, paired and started hacking with various telecom APIs offered by the event sponsors. The results were amazing, 4 completed hacks, all of them winning at least one prize, 3 of them being awarded TADHack global prizes — the details about all winners can be found at:
One of the global winning hacks, awarded by Canonical/Ubuntu, was named “Snappy Kamailio” done by Daniel-Constantin Mierla, the co-founder of Kamailio project. The title of the hack is not related to the behaviour of the application, as one could imagine, but to the rather new packaging system known as ‘snap’. Here is the definition of a snap taken from the
A snap is a fancy zip file containing an application together with its dependencies, and a description of how it should safely be run on your system, especially the different ways it should talk to other software.
Most importantly snaps are designed to be secure, sandboxed, containerised applications isolated from the underlying system and from other applications. Snaps allow the safe installation of apps from any vendor on mission critical devices and desktops.
Aiming to ease the deployment of applications across different Linux-based systems, wrapped with proper layers of security, the snaps concept look very promising.
Daniel’s remarks on the TADHAck event and its outcome:
“”I am glad that I could participate to the TADHack Global 2016, the local event in Berlin made it easier in a rather busy period of traveling, huge credits to Alan and Dennis for making it possible.
As for the hack, what Canonical/Ubuntu was offering during the hackfest was a perfect fit for me – a Linux/Ubuntu cloud infrastructure to meet the needs of scaling deployments and RTC platforms. As one of core developers of Kamailio SIP server project, I wanted to do something using it, that, after all, can also be useful for our community.
Cloud, virtualization, containers — all very hot concepts these days. But snaps target to be even slimmer, still avoiding annoying issues such as broken dependencies and different versions of libraries on different distributions. I heard about them, but never got the time to play with. TADHack global offered the chance that I didn’t want to miss. The hack-intense environment and discussions with other people around helped to clarify some doubts (hey Torsten, Dominik, Dennis).
Once I started to build snaps and test them running, I realized that the sandboxed snap restricts some privileges that Kamailio uses when running on Linux, such as creating raw UDP sockets. With a bunch of patches after many try-and-errors, I was able to get the stock Kamailio from our repositorybuilt and run as a snap.
It felt that the participation to the TADHack was fruitful already. The prize announced few days later came as a very pleasant complement awarded by Canonical/Ubuntu.
Now I am looking forward to get new versions of Kamailio snaps with a more specific target functionality, such as a load balancer, SIP registrar, a.s.o. Let’s see how far I can go till the TAD Summit, Nov 15-16, 2016, in Lisbon, Portugal, where I will participate and show the Snappy Kamailio and the evolution after the hackfest. If you are in telecom or real time communications looking for future transformations of the market, it’s an event you should definitely attend!””
Next are the relevant resources for Snappy Kamailio.
The spec files to build the Kamailio snap and some instructions are available at:
The slides of the TADHack Global pitch for Snappy Kamailio:
The video recording of the pitch:
If you are interested in Kamailio snaps, join our development community on sr-dev mailing list.
Thank you for flying Kamailio!

Tuesday, October 25, 2016

FOSDEM 2017 – RTC DevRoom – CFP

FOSDEM is one of the world's premier meetings of free software developers,
with over five thousand people attending each year.  FOSDEM 2017
takes place 4-5 February 2017 in Brussels, Belgium.

This email contains information about:
- Real-Time communications dev-room and lounge,
- speaking opportunities,
- volunteering in the dev-room and lounge,
- related events around FOSDEM, including the XMPP summit,
- social events (the legendary FOSDEM Beer Night and Saturday night dinners
    provide endless networking opportunities),
- the Planet aggregation sites for RTC blogs

Call for participation - Real Time Communications (RTC)

The Real-Time dev-room and Real-Time lounge is about all things involving
real-time communication, including: XMPP, SIP, WebRTC, telephony,
mobile VoIP, codecs, peer-to-peer, privacy and encryption.  The dev-room
is a successor to the previous XMPP and telephony dev-rooms.
We are looking for speakers for the dev-room and volunteers and
participants for the tables in the Real-Time lounge.

The dev-room is only on Saturday, 4 February 2017.  The lounge will
be present for both days.

To discuss the dev-room and lounge, please join the FSFE-sponsored
Free RTC mailing list:

To be kept aware of major developments in Free RTC, without being on the
discussion list, please join the Free-RTC Announce list:

Speaking opportunities

Note: if you used FOSDEM Pentabarf before, please use the same account/username

Real-Time Communications dev-room: deadline 23:59 UTC on 17 November.
Please use the Pentabarf system to submit a talk proposal for the
dev-room.  On the "General" tab, please look for the "Track" option and
choose "Real-Time devroom".

Other dev-rooms and lightning talks: some speakers may find their topic is
in the scope of more than one dev-room.  It is encouraged to apply to more
than one dev-room and also consider proposing a lightning talk, but please
be kind enough to tell us if you do this by filling out the notes in the form.
You can find the full list of dev-rooms at
and apply for a lightning talk at

Main track: the deadline for main track presentations is 23:59 UTC
31 October.  Leading developers in the Real-Time Communications
field are encouraged to consider submitting a presentation to
the main track at

First-time speaking?

FOSDEM dev-rooms are a welcoming environment for people who have never
given a talk before.  Please feel free to contact the dev-room administrators
personally if you would like to ask any questions about it.

Submission guidelines

The Pentabarf system will ask for many of the essential details.  Please
remember to re-use your account from previous years if you have one.

In the "Submission notes", please tell us about:
- the purpose of your talk
- any other talk applications (dev-rooms, lightning talks, main track)
- availability constraints and special needs

You can use HTML and links in your bio, abstract and description.

If you maintain a blog, please consider providing us with the
URL of a feed with posts tagged for your RTC-related work.

We will be looking for relevance to the conference and dev-room themes,
presentations aimed at developers of free and open source software about
RTC-related topics.

Please feel free to suggest a duration between 20 minutes and 55 minutes
but note that the final decision on talk durations will be made by the
dev-room administrators.  As the two previous dev-rooms have been
combined into one, we may decide to give shorter slots than in previous
years so that more speakers can participate.

Please note FOSDEM aims to record and live-stream all talks.
The CC-BY license is used.

Volunteers needed

To make the dev-room and lounge run successfully, we are looking for

- FOSDEM provides video recording equipment and live streaming,
  volunteers are needed to assist in this
- organizing one or more restaurant bookings (dependending upon number of
  participants) for the evening of Saturday, 4 February
- participation in the Real-Time lounge
- helping attract sponsorship funds for the dev-room to pay for the
  Saturday night dinner and any other expenses
- circulating this Call for Participation to other mailing lists

See the mailing list discussion for more details about volunteering:

Related events - XMPP and RTC summits

The XMPP Standards Foundation (XSF) has traditionally held a summit
in the days before FOSDEM.  There is discussion about a similar
summit taking place on 2 and 3 February 2017 - please join the mailing
list for details:

We are also considering a more general RTC or telephony summit,
potentially in collaboration with the XMPP summit.
Please join the Free-RTC mailing list and send an email if you would
be interested in participating, sponsoring or hosting such an event.

Social events and dinners

The traditional FOSDEM beer night occurs on Friday, 3 February.

On Saturday night, there are usually dinners associated with
each of the dev-rooms.  Most restaurants in Brussels are not so
large so these dinners have space constraints and reservations are
essential.  Please subscribe to the Free-RTC mailing list for
further details about the Saturday night dinner options and how
you can register for a seat:

Spread the word and discuss

If you know of any mailing lists where this CfP would be relevant, please
forward this email. If this dev-room excites you, please blog or microblog
about it, especially if you are submitting a talk.

If you regularly blog about RTC topics, please send details about your
blog to the planet site administrators:

  All projects



Please also link to the Planet sites from your own blog or web site as
this helps everybody in the free real-time communications community.


For any private queries, contact us directly using the address and for any other queries please ask on
the Free-RTC mailing list:

Monday, October 24, 2016

FUSECO Forum 2016

The 7th edition of FUSECO Forum, organized by Fraunhofer Fokus Institute, takes place between November 3-4, 2017, in Berlin, Germany:
This year, the focus is on understanding application drivers and technology evolution towards softwarized 5G networks and the industrial internet revolution.
fuseco-forum-logo_2016This year the FUSECO Forum will be accompanied by 2 additional international events on 5G, all of them held during the same week in Berlin. Don´t miss any of them and get ready for 5G and the Industrial Internet of Things!

Friday, October 7, 2016

TADHack Global 2016 – Berlin

This year the global edition of Telecom Application Developer Hackathon is organized during October 14 -16, 2016, with many locations world wide, among them being also Berlin. For more details, see:
TADHack is the global meeting place for developers who want to learn, share, code and create using the tools and technologies available in telecommunications.
The Berlin event is hosted by VoIP Lab, part of Buro 2.0 co-working space, being coordinated by Dennis P. Kersten during October 15-16, 2016.
Several Kamailio developers from Berlin area are participating to the event. Any developer can participate for free, you are welcome to join us in Berlin or anywhere around the world — you can do it also remotely, from your living room or your preferred working space. Think about an idea to code, hack and demo it for wining some nice goodies from sponsors!
Happy telecom hacking!

Thursday, October 6, 2016

KazooCon 2016

The next edition of Kazoo Project Conference takes place in San Francisco, CA, USA, during October 17-18, 2016.
Kazoo is a flexible cloud PBX platform, released under open source, developed by, with the telephony engine built using Kamailio, FreeSwitch and an Erlang controller, all wrapped nicely with a web management interface, doing all sorts of things from account management to billing and monitoring.
If you want to start a cloud telephony business or get into this market as a reseller, KazooCon is an event that you should definitely attend. More details about the conference are available at:
Kamailio incorporates a module with the same name, kazoo, but besides it, the developers from Kazoo project contributed a consistent effort in advancing the presence and database modules. Therefore expect to meet a lot of Kamailio friends around at KazooCon and participate in many interesting discussions.
Thanks for flying Kamailio!

Thursday, September 29, 2016

New Kamailio Module: RabbitMQ

A new module has been imported recently into the Kamailio git repository, named rabbitmq — its docs are available at:
The module is a result of a joint development between Carsten Bock and Stefan Mititelu. If offers AMQP communication from kamailio.cfg using librabbitmq, allowing to interact using a well establish message queuing mechanism with external applications.

Friday, September 16, 2016

AstriCon 2016

The Asterisk Users Conference – AstriCon – is taking place in Glendale, Arizona, during September 27-29, 2016.
With a consistent group of VoIP community using both Kamailio and Asterisk projects, Kamailio will have again a strong presence on site this year, including the participation in the expo floor, coordinated this edition by Fred Posner.
Along with him, you may meet around Torrey Searle, Nir Simionovich, Joran Vinzens and others that can answer your questions about Kamailio and Asterisk. Like in the past editions, several presentations will touch the use of Kamailio and integration with Asterisk — see agenda.
It is definitely a must-attend event if you are looking to build flexible real time communications using Kamailio and Asterisk, or even beyond that, there are not many places around the world where you can find so much VoIP knowledge at the same time along the year!

Thursday, September 15, 2016

Kamailio Advanced Training, Oct 24-26, 2016, in Berlin

Next European edition of Kamailio Advanced Training will take place in Berlin, Germany, during October 24-26, 2016.
The content will be based on latest stable series of Kamailio 4.4.x, released in March 2016, the major version that brought a large set of new features, currently having the minor release number v4.4.2.
The class in Berlin is organized by Asipto  and will be taught by Daniel-Constantin Mierla, co-founder and core developer of Kamailio SIP Server project.
Read more details about the class and registration process at:
Looking forward to meeting some of you in Berlin!

Wednesday, September 14, 2016

Kamailio v4.4.3 Released

Kamailio SIP Server v4.4.3 stable is out – a minor release including fixes in code and documentation since v4.4.2. The configuration file and database schema compatibility is preserved.
Kamailio v4.4.3 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 4.4.3
Source tarballs are available at:
Detailed changelog:
Download via GIT:
 # git clone git:// kamailio
 # cd kamailio
 # git checkout -b 4.4 origin/4.4

    Relevant 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:
    Thanks for flying Kamailio!

    Saturday, September 3, 2016

    Kamailio – 15 Years of Development

    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 release
    The 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!

    Monday, August 29, 2016

    VUC – SER-Kamailio At 15 Years

    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] 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!

    Friday, August 26, 2016

    SIPit 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:
    To 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!

    Tuesday, August 2, 2016

    ClueCon 2016

    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, 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!

    Thursday, July 14, 2016

    IETF96 in Berlin

    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!

    Tuesday, July 5, 2016

    Kamailio v4.2.8 Released

    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 4.2.8
    Source tarballs are available at:
    Detailed changelog:
    Download via GIT:
     # git clone git:// kamailio
     # cd kamailio
     # git checkout -b 4.2 origin/4.2
    Binaries 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!