The NORCO-SP200/400/800 series SIP Proxy Server is designed as an embedded-based platform. It performs internet telephony service for status of registration, call detail record and security registration policy. The NORCO-SP200/400/800 series provides a comprehensive, powerful platform for delivering IP telephony applications based on the Session Initiation Protocol (SIP). It also builds in VoIP 2/4/8 voice channels Gateway which support SIP signal protocols.