XLB is a high performance HTTP load balancer. connection management, caching, ssl, scripting. 300 mbit/sec / 4000 reqs/sec takes 30% cpu on a 2GhZ Xeon. connection pooling to backend servers reduces memory and cpu usage on backends.
The SIP2IMS gateway aims to enable simple SIP clients to access IMS networks and provide support for IMS features such as Service-Routes, AKA authentication, IP-Sec/TLS etc.