PROBLEM TO BE SOLVED: To perform split charge settlement by determining split charge sharing on the basis of the agreement of all users.;SOLUTION: Only when a plurality of user terminals 210 to 230 which can be operated by a plurality of users who pay a use price by splitting the cost respectively are all put in an online state with a conference server 100, information designated by the user terminals 210 to 230 respectively is accepted, and the split charge sharing of the use price is determined on the basis of the information in the conference server 100.;COPYRIGHT: (C)2008,JPO&INPIT
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