<p>Content delivery service quality and operation efficiency are improved. A network resource management unit (11) performs a network resource management including the current and future use state of a network (2). A content price calculation unit (12) calculates a content price or discount ratio as the content price information according to the network resource. A delivery request acceptance unit (13) controls the entire user interface concerning the content delivery, indicates the content price information to a customer (31), accepts a content delivery reservation request from the customer (31), and delivers a requested content at a desired delivery time. A reservation request processing unit (14) reserves a network resource necessary for content delivery and manages reservation information. A customer information holding unit (16) holds customer information including charging information.</p>
