INTERCEPTING DEVICE

PROBLEM TO BE SOLVED: To provide an intercepting device, that can continuously conduct an intercepting job, even in the case of addition and revision of a telephone number of an incoming call or of inspection of an exchange or the like. SOLUTION: In an intercepting center 1, representative lines 20, 30 representing plural lines 21-23 and 31-33 are connected to a terminal board 4, in which respective lines can be disconnectable, the respective lines of the representative lines 20, 30 are connected to plural different exchanges 2, 3. In the case of stopping one exchange, the lines of the representative lines 20, 30 connected to the exchange to be stopped are disconnected from the terminal board 4 and the lines connected to the other exchange in an operating state are used to respond to incoming calls. Thus, a service with high reliability can be realized for general subscribers.