Tuesday, July 21, 2009

Blog by MiConDa

As of today, this blog will get only sporadic updates. The most of the blogging activity will take place at:


OpenSER renamed to Kamailio one year ago, therefore the name is pretty obsolete now. Moreover, it is a lot to blog about SIP-Router.org project and other SIP/VoIP related things.

Update your bookmarks and rss feeds! See you at the new address:

Monday, July 20, 2009

SIP Router Bootcamp, Berlin, Germany, Sep 1-4, 2009

Next SIP Router Bootcamp will take place at the end of the summer, on September 1-4, 2009 in Berlin, Germany.


Daniel-Constantin Mierla - co-founder of OpenSER/Kamailio project in 2005, currently core-developer and member of project’s management board

Olle Johansson - Asterisk developer and member of the Digium Asterisk Advisory Board.

By end of 2008, Kamailio (OpenSER) and SIP Express Router (SER) started a joint collaboration under http://sip-router.org project, bringing together valuable developers and architects of SIP servers. Kamailio 3.0 and SER 3.0 (to be released soon) become compatible in terms of configuration file and extensions.

Learning to configure the SIP server is not easy, but is the key for a successful and secure VoIP business. The flexibility of SIP routing engine allows you to implement in no time innovative services, IP telephony, Instant Messaging, Presence and beyond. Asterisk comes to complete with rich media services and applications. Doing everything designed right and scalable saves time and money.

We create the opportunity for you, guided by experienced instructors, to learn how to build an Unified Communication platform from scratch using the SIP server engine and Asterisk.

Click here for course details and registration.

Thursday, July 16, 2009

Roadmap to Kamailio (OpenSER) 3.0

The roadmap to next major release of Kamailio (OpenSER), codenamed 3.0, was sketched during IRC meeting Jul 07, 2009, as:

- freezing in 1-1.5 months

- 1-1.5 months testing

- release by end of September/ beginning of October

Right now, current development state is:

- all but one module (seas) were updated to work with the new core

- several addons in kamailio core and tm still to be included in GIT master branch

- many new features developed: mecached, event_route, xml doc handling … see:


All of you are invites to test, startup guidelines can be found at:


You can send feedback at:

Wednesday, July 15, 2009

Kamailio (OpenSER) v1.5.2 Released

A new release in 1.5 series is out. Kamailio (OpenSER) 1.5.2 is based on the latest version of branch 1.5, including many fixes in code and documentation, therefore those running 1.5.0 or 1.5.1 are advised to upgrade.

Source tarballs are available at:


Detailed changelog:


Download via SVN:

svn co https://openser.svn.sourceforge.net/svnroot/openser/branches/1.5 kamailio

Tag for this release can be browsed at:


Project site at SourceForge.net (still using old name):


Binaries and packages will be uploaded at:


Modules' documentation:


What is new in 1.5.x release series is summarized in the announcement of v1.5.0:


Note: Kamailio is the new name of OpenSER project. First version under Kamailio name was 1.4.0. Older versions will continue to use OpenSER name. The source tree for current development version is hosted by SIP Router project, you can test it via:

Tuesday, July 14, 2009

New module MI_RPC available

Several days ago, a new module named mi_rpc was added to the source tree. The goal is to be able to execute MI commands using RPC interface from sip router core.

One big advantage of this is executing MI commands using the sercmd tool. sercmd is a command line interface, able to do auto completion for commands, used to change parameters, get insights of core and modules at runtime.

If you grabbed the source code (some guidelines at: http://sip-router.org/wiki/migration/kamailio-3.0-config ), then:

cd utils/sercmd



At the prompt: “mi ps”

See the readme of the module for more options:


You need to compile and load modules_s/ctl:


Saturday, July 11, 2009

Two more modules updated

Two of the last three modules that were not ported to use the new sip router core are ready now: nat_traversal and siptrace.

Particularly, siptrace was refurbished a lot. Before release, there are couple of new features that should get in trunk since sip route core offers support for such extensions:

- ability to filter the ACK for negative replies issued by sl module in the script

- ability to store stateless forwarded messages (now only stateful ones being stored)

Testing is very much appreciated, see guidelines at Kamailio 3.0 Config wiki page.

Monday, June 22, 2009

Kamailio Presence at LinuxTag 2009

Henning Westerholt will be present at LinuxTag 2009 in Berlin, Germany giving the talk "Building carrier grade voice over IP systems with Kamailio", on Wednesday the 24th June afternoon. Further details can be found in the conference program at:

If you are around Berlin on June 24-25 and want to meet for some discussions, just drop an email to <henning(dot)westerholt[at]1und1(dot)de>

Saturday, June 20, 2009

SIP Router Cfg - VIM Syntax Highlighting

Those using VIM as text editor can get nice coloured sip router config file (working as well for Kamailio (OpenSER) 1.5.x). Download the vim syntax file from:


Place it in:


Open the config file

vim kamailio.cfg

And then execute:

:setf ser

Thursday, June 11, 2009

SIP Router Bug Tracker

The SIP Router project has a new bug tracker available:


Feel free to use it to report:

  • bugs (code, documentation, web site)
  • feature requests
  • improvements

Tuesday, June 9, 2009

Asterisk SIP Masterclass Summer 2009

Asterisk SIP Masterclass is professional training program dedicated to Asterisk and integration with SIP router (Kamailio/OpenSER). This class focuses on building a carrier-class scalable network architecture with Asterisk and Kamailio (OpenSER).

The course will be taught by two teachers that have all the insights you need to learn the details of Asterisk and Kamailio (OpenSER):

  • Olle E. Johansson - Asterisk SIP Developer and Kamailio (OpenSER) contributor
  • Daniel-Constatin Mierla - Kamailio (OpenSER) Developer and founder

The class is held in Malaga, Spain, June 22-26, 2009.

Register now - seats are limited! It is more than a learning opportunity, a great chance for networking and business opportunities, a place to get in touch with latest VoIP technologies and professionals world-wide.

For more details and registration:

Wednesday, May 27, 2009

SIP Router IRC channel

The IRC fans that want to do “a more real-time chat” about using and developing SIP Router project, can join the #sip-router channel on irc.freenode.net.

Monday, May 18, 2009

SIP Router Users Mailing List

As the project entered the phase where it is usable with modules from both Kamailio (OpenSER) and SIP Express Router (SER) projects, a new mailing list has be created:


You can subscribe to it at:


It is intended for community users, the early testers at this moment in time.

The other mailing lists available for the project are:

- sr-dev - for development related discussions

- sr-users-es - sip router Spanish community mailing list

Friday, May 15, 2009

SIP Router Ready for Testing

The period of SIP Router integration phase is more and more approaching the end. Apart of 4 modules that are not integrated yet from Kamailio - seas, siptrace, uac_redirect and nat_traversal (work being undertaken) — the rest of 88 modules are ready for http://sip-router.org core.

There is now a page to collect guidelines for the default Kamailio configuration file used with sip-router. We invite all of you to test it, not only this one, but your private configs as well.

Feel free to add to the wiki page or post questions about it to sr-users@lists.sip-router.org. This is a new list created for users of sip-router project, you can subscribe to it at:

At this stage, sip router can be used with modules from both Kamailio (OpenSER) and SER projects, mixed in same instance at the same time. Therefore you can choose the best ones that fit your needs. For Kamailio (OpenSER) users there is a page that tries to collect new features they got from SER side (still a lot to add there, hope ser developers will contribute what they find missing). Another page collects links for ser and kamailio users to find what the other project brings:

It was not only integration work in the past months, sip router has quite a bunch of brand new feature. The wiki page to collect the summary is available at:

Jan just set online documentation portal, available for web browsing:

Common modules are located in directory ‘modules’ while kamailio and ser specific modules can be found under module_k and modules_s. Project’s wiki portal got also good content and it is under heavy work — note that everyone can contribute to wiki:

Couple of core and tm features are not yet integrated or not exactly as they were in Kamailio. Please report the ones you are missing in your config at:

It is the place that should set the priority rank for integration. I hope that in 1-2 months time frame to get into beta stage and prepare a stable release.

Many thanks for those that allocated resources to make things evolve to this stage and many thanks in advance for those that will start testing and help improving the sip router project.

Thursday, May 14, 2009

SIP Router Online Documentation

Thanks to Jan, automatically generated HTML documentation from docbook documents stored in the git repository is available at


This is all the docbook documentation that we currently have in the repository, including the documents under doc, modules, modules_k, modules_s, and lib subdirectories.

The HTML documentation is updated automatically upon changes in the git repository.

Tuesday, May 5, 2009

Amoocon 2009 Presentation

Slides presented at Amoocon 2009, Rostock, Germany, are now available at:


The two day event, although Asterisk centric, brought many people from different projects and technologies around SIP and VoIP. Very interesting talks about integration with web and social networking, SS7 or database clustering.