TELEPHONE EXCHANGE SYSTEM

摘要

PURPOSE:To attain the talking wherever a mobile telephone set is moved when a terminal equipment for location registration is available by connecting a line controller to a subscriber line just after an exchange and managing the location information of the mobile telephone set centralizingly. CONSTITUTION:A line controller 4 is installed to the same location as an exchange 2 and a wire transmission line 5 to a terminal equipment 6 is drawn together with a subscriber line 3 from the exchange 2. A couple of the wire transmission lines 5 are installed to each terminal equipment 6. A subscriber number is decided to the subscriber line 3, which corresponds one by one to each terminal equipment 6. The line controller is provided with a memory device applying file management corresponding to each mobile telephone set 7 by using the subscriber number of the drawn subscriber line 3, the identification code of the mobile telephone set 7 and the identification code of the terminal equipment 6. The terminal equipment 6 makes the transmission/reception of the identification code of the mobile telephone set 7 with the mobile telephone set 7 in case of connecting the outgoing/incoming call and the transmission/ reception between a circuit connected to the line 9 and the line controller 4 via the line 5.