| 摘要 |
PURPOSE:To attain telephone call of a specific party automatically by providing a portable medium with an identification code specific to a subscriber and an identification code of an opposite subscriber or the like registered thereon and a telephone set with the said portable medium freely attachable and detachable, and provided with a function sending the subscriber identification code in a radio wave. CONSTITUTION:A portable medium 3 is provided with a pocket beeper receiver function and registered with an identification code specific to the subscriber, plural opposite subscriber identification codes being object of call and a line address or an ISDN number part in pairs with the opposite subscriber identification codes. Telephone sets 1A, 1B, 1a, 1b are constituted to load or unload the portable medium 3 and is provided with a function sending the subscriber identification code in a radio wave. When the portable medium 3 is loaded to the telephone set and the desired opposite subscriber identification code is designated, the relevant line address or ISDN number is sent automatically to the line and the telephone set corresponding thereto sends the opposite subscriber identification code in a ratio wave. Then when both the portable medium 3 of the caller and the called party is loaded to each telephone set, a speech line is formed between both the parties. |
