Patent ID: 8099461

Claim:
A conference system which is provided with a plurality of communication terminals, a communication network which connects the plurality of communication terminals thereto and forms a communication environment among the communication terminals, and a server apparatus which actualizes a conference among users of the plurality of communication terminals by using the communication network, wherein each of the communication terminals comprises: a notice processor which notifies an acquisition request including the fact of a request to acquire multimedia data regarding the conference and identification information of a communication terminal to be a route of the multimedia data to the server apparatus before starting the conference in which a user of a communication terminal that is a request origin may not participate and a user of the communication terminal of the route may participate; and a storage unit which stores the multimedia data to be transmitted via the communication terminal of the route, and the server apparatus comprises: a memory unit which associates the communication terminal that is the request origin with the identification information, and stores them when the acquisition request is notified; an inquiry processor which inquires a possibility to become the route of the multimedia data to the communication terminal of the route; and a transmission processor which transmits the multimedia data to the communication terminal of the request origin via the communication terminal of the route when a permission response is received from the communication terminal of the route in response to the inquiry.