CIRCUIT SHARING SYSTEM

摘要

PURPOSE:To assure the communication for a fixed period of time for an instantaneous call which shares a circuit with a reserved call, by having the same reserving process as the reserved call even for the instantaneous call. CONSTITUTION:An exchange 2 accepts an instantaneous call request from a terminal 15 and informs it to a reservation center 1. A reservation controller 5 reserves a circuit through a circuit reservation state file 6 after confirming the idle state of the circuit between terminals 15 and 16 for a fixed period of time from the present time point. Then the controller 5 informs a connection route through which the reservation is carried out to the exchange 2 via a signal device 7 and a communication circuit 14. A controller 9 receives the information and controls a channel device 8 according to the connection route. Then the controller 9 connects a circuit 17 and sends an instantaneous call request including the connection route to an exchange 3. Then exchanges 3 and 4 connect successively circuits according to the informed connection route, then connect terminals 15 and 16.