The IMPRESS system and its session and resource management with Q.2931

To keep pace with world-wide integrating trend of telecommunication and broadcasting service, we have developed a DAVIC (Digital Audio-Visual Council) compliant ATM-based VOD (Video On Demand) system. The resources and sessions required to provide video on demand service should be managed so, we have implemented DSM-CC UN (Digital Storage Media Command and Control User-to-Network) protocol. From the DSM-CC UN perspective, an ATM connection is merely one type of resource needed within a video on demand service session, but DSM-CC UN should use Q.2931 protocol to actually create the ATM connection. In this paper, we focus on how DSM-CC UN can be used to manage sessions and resources for video on demand service with Q.293I protocol in the ATM network