KAMAILIO (OPENSER) SIP Server: Kamailio (OpenSER) v1.5.0 Released

Monday, March 2, 2009

Kamailio (OpenSER) v1.5.0 Released

On March 02, 2009, Kamailio (OpenSER) 1.5.0 has been released. It represents the major version with the biggest new features boost since project was started back in 2005.

Release 1.5.0 comes after a shorter development period than usual - about five months of coding and more than one month of extensive testing, but brings lot of new features and improvements, with special care to stability, performance, security and flexibility. A short summary of what the release brings out:

configuration file caching system - generic storage engine in memory via htable module allowing to share data between processes and reduce SQL operations by storing results in cache
execute SQL queries against multiple databases and access the results in a fast and natural fashion
execute config file route blocks on timer
send SIP requests from config file
perform HTTP queries from config file - integration with web service
dialog info presence support - RFC4235
support for TLS server_name extension (aka SNI=server name indication)
support for non-blocking logging
many enhancements to least cost routing (LCR), load balancing (dispatcher) and carrier routing (carrierroute)
access in config file to both request or reply during transaction processing
perl-like regular expression support (PCRE library)
sanity check of SIP message structure
protection against SIP reply attack
twelve new modules
code restructuring in core - slimmer and less exposed to issues
web management interface - SIREMIS