The Rush-311SD is an in-home gateway device suitable for multimedia networks that provides SIP VoIP to enable the use of internet phones. It incorporates QoS technology to meet the quality demands of the growing internet phone services, as well as multimedia and broadcasting services. Equipped with multicast management capabilities to satisfy IPTV performance requirements and optimized NAT performance, it is a product well-suited for the rapidly evolving VoIP and IP broadcasting environments.