| 摘要 |
PURPOSE:To call a specific party without manual intervention in a short time by controlling both caller and called telephone sets so as to form a speech line between the both when a telephone paging portable medium is loaded to the caller and called telephone sets. CONSTITUTION:Telephone sets 1a, 1b are connected via a digital private branch of exchange (PBX) 2, and an IC card 3 as a telephone paging portable medium is loaded to attain the telephone paging system under the control of the IC card 3. The IC card 3 stores an identification code specific to a subscriber and a called party identification code being an object of call. The exchange 2 is provided with a database 23 registering each identification code or the like sent from the IC card 3 and uses the sent called party identification code to retrieve the database, sends the caller identification code through the wire or in a radio wave to the called telephone set, and when the IC card 3 for both the caller and called parties is loaded to the telephone sets 1a and 1b, a speech line is formed between the both. |
