About Kamailio (OpenSER) SIP Server project

On the 28th of July, 2008, due to trademark issues related to OPENSER word, the OpenSER project changed the name in KAMAILIO. The wiki page for the old project name is still available at: OpenSER.

Kamailio is an Open Source SIP Server released under GPL, able to handle thousands of call setups per second. Among features: asynchronous TCP, UDP and SCTP, secure communication via TLS for VoIP (voice, video), SIMPLE instant messaging and pressence, ENUM, least cost routing, load balancing, routing fail-over, accounting, authentication and authorization against MySQL, Postgres, Oracle, Radius, LDAP, XMLRPC control interface, SNMP monitoring. It can be used to build large VoIP servicing platforms or to scale up SIP-to-PSTN gateways, PBX systems or media servers like Asterisk™, FreeSWITCH™ or SEMS. The application is written in C for Linux/Unix platforms and focuses on performance, flexibility and security. In addition to C, extensions can be written in Lua, Perl or Python.

On Nov 04, 2008, Kamailio and SIP Express Router have started the SIP Router Project.

Latest version: Kamailio v3.0.0 (Jan 11, 2010) - see release notes

Web links

• Home page with new project name: http://www.kamailio.org
• Home page with old project name: http://www.openser-project.org
• SourceForge.net Project page: http://sourceforge.net/projects/openser/
• SVN Code repository: http://openser.svn.sourceforge.net/viewvc/openser/

Blog feeds

• Kamailio 3.0.0 at FOSDEM 2010, Brussels, Feb 6-7 (28 Jan 2010 | 2:23 pm PST)
• eLeaning class on Kamailio to start on Feb 8, 2010 (27 Jan 2010 | 1:02 pm PST)
• Two weeks Kamailio 3.0.0 (26 Jan 2010 | 9:08 am PST)
• Tru++ 2010 (22 Jan 2010 | 11:38 am PST)
• 3G+ and LTE Event in Berlin (19 Jan 2010 | 9:55 am PST)
• Siremis v1.0.0 Released (18 Jan 2010 | 8:25 am PST)
• Best of New in Kamailio 3.0.0 - #19: htable (17 Jan 2010 | 1:48 pm PST)
• Kamailio and FreeSWITCH - LCR and SBC (16 Jan 2010 | 8:22 am PST)
• Best of New in Kamailio 3.0.0 - #18: transaction management (15 Jan 2010 | 8:51 am PST)
• Best of New in Kamailio 3.0.0 - #17: xmlrpc (14 Jan 2010 | 2:16 am PST)
• Kamailio (OpenSER) v3.0.0 Released (11 Jan 2010 | 10:41 am PST)
• Best of New in Kamailio 3.0.0 - #16: auth sip identity (10 Jan 2010 | 2:26 pm PST)
• Best of New in Kamailio 3.0.0 - #15: sctp (8 Jan 2010 | 11:01 pm PST)
• Best of New in Kamailio 3.0.0 - #14: iptrtpproxy (8 Jan 2010 | 5:28 am PST)
• Best of New in Kamailio 3.0.0 - #13: number portability (7 Jan 2010 | 4:51 am PST)
• Best of New in Kamailio 3.0.0 - #12: development team (6 Jan 2010 | 11:49 am PST)
• Best of New in Kamailio 3.0.0 - #11: memcached connector (5 Jan 2010 | 4:18 am PST)
• Schedule for Kamailio 3.0.0 Release (4 Jan 2010 | 6:50 am PST)
• Best of New in Kamailio 3.0.0 - #10: topology hiding (3 Jan 2010 | 2:40 am PST)
• Best of New in Kamailio 3.0.0 - ToC (2 Jan 2010 | 3:20 am PST)

Kamailio Headlines

2010

• 2010-01-27 - Kamailio SIP Router eLearning class - online training starting on Feb 8, 2010
• 2010-01-25 - Kamailio 3.0.0 Presentation at FOSDEM 2010, Brussels, Feb 6, 2010
• 2010-01-11 - Kamailio (OpenSER) v3.0.0 is out - a new major release

2009

• 2009-10-21 - Kamailio (OpenSER) v1.5.3 is out - a patch release to branch 1.5
• 2009-09-01 - Kamailio wins Best of Open Source Software Awards 2009 within Best of Open Source Networking Software category
• 2009-07-14 - Kamailio (OpenSER) v1.5.2 is out - a patch release to branch 1.5
• 2009-07-08 - SIP Router Bootcamp, Sep 1-4, 2009, Berlin, Germany
• 2009-06-22 - Asterisk and Kamailio SIP Masterclass, Summer 2009
• 2009-04-29 - Kamailio (OpenSER) v1.5.1 is out - a patch release to branch 1.5
• 2009-03-25 - Kamailio (OpenSER) v1.4.4 is out - a patch release to branch 1.4
• 2009-03-02 - Kamailio (OpenSER) v1.5.0 is out - a new major release
• 2009-02-10 - SIP Router Masterclass, Sweden, April 20-24, 2009 - first training class dedicated to Kamailio (OpenSER) and SIP Express Router (SER)
• 2009-02-07 - Social Networking Meeting in Brussels, at FOSDEM2009 - details here
• 2009-01-21 - SIREMIS - Web Management Interface for Kamailio (OpenSER)

2008

• 2008-12-16 - Kamailio v1.4.3 Released
• 2008-11-04 - SIP-Router.org Project Launched
• 2008-08-07 - Kamailio v1.4.0 Released
• 2008-08-04 - OpenSIPS announced - a forked project from Kamailio pre-release 1.4.0
• 2008-07-28 - OpenSER renamed to Kamailio - Email announcement here

Release Series

• 3.0.x
  • 3.0.0 - Jan 11, 2010 - v3.0.0 Release Notes
    • first release using SIP Router core
• 1.5.x
  • 1.5.0 - Mar 02, 2009 - v1.5.0 Release Notes
  • 1.5.1 - Apr 29, 2009
  • 1.5.2 - Jul 14, 2009
  • 1.5.3 - Oct 21, 2009
• 1.4.x
  • 1.4.0 - Aug 07, 2008 - v1.4.0 Release Notes
  • 1.4.3 - Dec 16, 2008
• 1.3.x
  • 1.3.0 - Dec 13, 2007 - v1.3.0 Release Notes
  • 1.3.4 - Nov 24, 2008
• 1.2.x
  • 1.2.0 - Mar 12, 2007 - v1.2.0 Release Notes
• 1.1.x
  • 1.1.0 - Jul 10, 2006 - v1.1.0 Release Notes
• 1.0.x
  • 1.1.0 - Oct 28, 2005 - First version with TLS
• 0.9.x
  • 0.9.4 - Jun 14, 2005 - Initial version of Kamailio (OpenSER)

Download

• Main download page - http://www.kamailio.org/mos/view/Download/
• SVN Repository (0.9.x to 1.5.x) - https://openser.svn.sourceforge.net/svnroot/openser
• GIT Repository (3.0.x on) - http://git.sip-router.org/sip-router/ (browse)

Features

• SIP proxy/registrar/redirect server (RFC3261, RFC3263)
• SIP over UDP
  • MTU fallback support
• SIP over TCP
  • asynchronous TCP
• SIP over TLS
  • multi-homing support
• SIP over SCTP
  • multi-streaming
  • multi-homing
• IPv4 and IPv6
• Transactional stateful proxy
• Modular architecture
• Programmable configuration file
• ENUM support
• Call Processing Language (CPL)
• Gateway to sms or xmpp
• Authentication, authorization and accounting via Radius or database
• NAT traversal system
• Kernel space packet relaying for RTP
• Least cost routing
• Load balancing
• Carrier routing
• Multiple database backends: MySQL, Postgres, Unixodbc, Oracle, BDB or flat files
• SIMPLE Presence Server (IETF SIMPLE extensions - rich presence)
• Dialog Info Presence - SLA/BLA
• XCAP and RLS
• Presence User Agent
• Dialog Stateful Proxy
• Instant Messaging
  • Offline message storage
  • Instant messaging conferencing
• SNMP support
• RADIUS support
• LDAP support
• Perl Programming Interface
• Lua Programming Interface
• Python Programming Interface
• Java SIP Servlet Application server
• Number portability
• XMLRPC control interface
• Topology hiding
• Memcached connector
• Command line interface (cli named sercmd)
• Over 150 modules (extensions)

Documentation

• Main Documentation Page - http://www.kamailio.org/docs/
• Dokuwiki Page - http://www.kamailio.org/dokuwiki/

• v1.0.x Modules' Documentation - http://www.kamailio.org/docs/modules/1.0.x/
• v1.1.x Modules' Documentation - http://www.kamailio.org/docs/modules/1.1.x/
• v1.2.x Modules' Documentation - http://www.kamailio.org/docs/modules/1.2.x/
• v1.3.x Modules' Documentation - http://www.kamailio.org/docs/modules/1.3.x/
• v1.4.x Modules' Documentation - http://www.kamailio.org/docs/modules/1.4.x/
• v1.5.x Modules' Documentation - http://www.kamailio.org/docs/modules/1.5.x/
• v3.0.x Modules' Documentation - http://www.kamailio.org/docs/modules/3.0.x/

• Devel Guide - http://www.asipto.com/pub/kamailio-devel-guide/

Project Resources

• Users mailing list - http://www.kamailio.org/cgi-bin/mailman/listinfo/users
• Development mailing list - http://www.kamailio.org/cgi-bin/mailman/listinfo/devel
• Business mailing list - http://www.kamailio.org/cgi-bin/mailman/listinfo/business
• Community's web forum - http://www.voipuser.org/forum_view_24.html
• Project's tracking system - http://sourceforge.net/tracker/?group_id=139143
• Blog - http://openser.blogspot.com/
• IRC channel - new: #kamailio @ irc.freenode.net
• IRC channel - old: #openser @ irc.freenode.net
• Configuration auto-generator: http://www.sipwise.com/wizard

Deploying Kamailio

• Install Kamailio 3.0.x from GIT
• Install Kamailio 1.5.x from SVN

• Realtime Integration Of Asterisk 1.4 With Kamailio 1.5.x - step by step integration of Asterisk v1.4.x with Kamailio 1.5.x to provide voicemail service with MWI to large number of VoIP subscribers

• Kamailio 1.5.x and RTPProxy - Kamailio (OpenSER) v1.5.x configuration to do NAT traversal using nathelper and rtpptoxy

• Kamailio and RADIUS - tutorial to build VoIP services with Kamailio and FreeRADIUS

• SIREMIS Web Management Interface - http://siremis.asipto.com
• Kamailio (OpenSER) Administrator - web interface for managing Kamailio written in Ruby on Rails

Platforms

Kamailio is known to work on

• most of Linux flavours (OS used for development is mainly Debian)
• 64b Linux flavours
• SUN/Solaris
• FreeBSD
• OpenBSD
• NetBSD

Misc Resources

• Kamailio Consultants
• eLearning and Certification programs for Kamailio

See also

• http://www.kamailio.org
• SIP Router Project
• http://sip-router.org
• SIREMIS
• http://siremis.asipto.com