| 摘要 |
A clearinghouse unit (26) in communication with a service provider (18, 20, 22) and an operator (30, 32, 34) of a communication network (38, 40, 42). The clearinghouse unit (26) has a client database (36), a position database (28) and a match database (24). The position and other information of clients/users(12, 14) may be transacted between the operators (30, 32, 34), the users (12, 14), the service providers (18, 20, 22) and the clearinghouse unit (26) without revealing the true identity of the clients (12, 14). |
