Kamailio (OpenSER) 3.0.0 release represents a big step forward for the SIP server, with many new features and enhancements. Along with ability to run SIP Express Router (SER) modules due to the new SIP-Router.org core framework, it brings asynchronous TCP, refurbished secure transport TLS and SCTP, new command line interface (cli), number portability and topology hiding support, memcached connector and internal dns caching system. The presentation will focus to highlight what Kamailio 3.0.0 can offer to build scalable VoIP platforms.