Main -> News -> B2BUA in OpenSIPSBack-to-Back User Agent in OpenSIPSA new feature has been added to OpenSIPS: a signaling B2BUA implementation. This implementation gives OpenSIPS power over the calls and makes possible building some PBX specific services. It is not a full B2BUA as it does not handle media, but only creates and controls media sessions. B2BUA in OpenSIPS is an implementation of the behavior of a B2BUA as defined in RFC 3261 that offers the possibility to build certain services on top of it. It consists of two modules:
The reason for which the architecture has two parts is to allow extensions and integration with other system that might implement their own logic interpretor. Instead of the b2b_logic module, another module with a different logic interpretor or scenario source can be added and use the interface that the b2b_entities module offers to build quickly a new B2BUA implementation. The b2b_entities role in the processing is an independent one that is required in any B2B implementation and it is therefore encoded in a separate module. It offer an upper level library that will make the implementation of another logic interpreter and applier much easier. The services are defined in scenario documents that are XML documents with a structure that allows describing many services described in detail here. There are two means to trigger a B2BUA service:
When a certain service should be initiated is left at the decision of the administrator. In the documentation page you can find two services examples with their corresponding scenario documents Other services can also be defined as long as the document format permits describing the needed actions. This implementation is only an initial version and it can be extended to support other services definitions if they will be requested for. You can read more here http://www.opensips.org/Resources/B2buaTutorial. Also you can check out the modules documentation: b2b_entities and b2b_logic. | News OpenSIPS 1.6.211th of March 2010
OpenSIPS 1.6.2 is brings new features... OpenSIPS Control Panel 4.008th of March 2010
OpenSIPS CP 4.0 comes with user provisioning... Conference on "OpenSIPS 2.0"5th of March 2010
VoIP Users Conference will host an audio conference OpenSIPS webinar25th of February 2010
Next webinars is Explaining the default script OpenSIPS 2.0 Design15th of February 2010
Design of OpenSIPS 2.0 is unveiled OpenSIPS webinar28th of January 2010
Next OpenSIPS webinars is SIP Introduction Building Telephony Systems with OpenSIPS 1.621st of January 2010
New edition is available... OpenSIPS 1.6.1 is released21st of December 2009
OpenSIPS 1.6.1 minor release is out... OpenSIPS Development Course17th of December 2009
OpenSIPS Devel Course for 2010... OpenSIPS Bootcamps 201009th of December 2009
2010 Schedule for Bootcamp events... User Location is faster13th of November 2009
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OpenSIPS project offers free VoIP services... OpenSIPS & Astricon21th of September 2009
OpenSIPS talks and exhibits at Astricon 2009... SVN freeze17th of September 2009
SVN trunk gets frozen to prepare 1.6 release... New types of script routes10th of September 2009
New additions to configuration file routes... STUN server7th of September 2009
OpenSIPS has now a built-in STUN server... Pseudovariable implementation extended3rd of September 2009
Added new operations for pvars to give more power to the script writer... OpenSIPS Asterisk Integration30th of August 2009
Tutorial for realtime integration... OpenSIPS 1.5.3 is released27th of August 2009
OpenSIPS 1.5.3 minor release is out... AAA and RADIUS support18th of April 2009
New AAA API and RADIUS enhancements in OpenSIPS OpenSIPS webinar4th of April 2009
Next OpenSIPS webinars is Types of Routs in OpenSIPS B2BUA3rd of August 2009
A B2BUA signaling implementation in OpenSIPS DB virtual23th of July 2009
A DB conn mixer for failover, parallel and LB Codec manipulation23th of July 2009
SDP codecs and priorities manipulation Memcached interfacing16th of July 2009
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OpenSIPS 1.5.2 minor release is out... OpenSIPS@ClueCon14th of July 2009
OpenSIPS talks at ClueCon OpenSIPS webinar30th of June 2009
Next OpenSIPS webinars is Routing in SIP REGISTRAR enhancements29th of June 2009
REGISTRAR module becomes more flexible OpenSIPS free webinars01st of June 2009
OpenSIPS webinars program was launched OpenSIPS-CP 2.0 is released13rd of April 2009
OpenSIPS Control Panel 2.0 major release is out... OpenSIPS 1.5.1 is released13rd of April 2009
OpenSIPS 1.5.1 minor release is out... OpenSIPS 1.5.0 is released23rd of March 2009
OpenSIPS 1.5.0 major release is out... OpenSIPS 1.4.5 is released23rd of March 2009
OpenSIPS 1.4.5 minor release is out... OpenSIPS as Load Balancer4th of March 2009 OpenSIPS at Amoocon (AsteriskTAG)24th of February 2009 |