Kamailio (formerly named OpenSER) is ahigh-performance SIP (RFC3261) server, with aflexible architecture and many extensions. Theserver implements proxy, registrar, redirect, andlocation SIP/VoIP services. It has support forUDP/TCP/TLS transport layers, ENUM, AAA viadatabase, RADIUS, DIAMETER, gateways to SMS andXMPP, least cost routing, load balancing, NATtraversal, and call processing language.License: GNU General Public License (GPL)Changes:
This release adds Oracle database support, trafficshaping rate limits,regexp dial plan conversions, shared variables inthe configuration, atesting suite, and radius-based peering.