LINE ROUTE SELECTION TYPE TELEPHONE SYSTEM

PURPOSE:To prevent a call time from becoming long and to prevent that the selection of a line route itself from becoming useless by providing a route selection means and a means for transmitting alarm sound or compulsorily disconnecting communication after a scheduled call time has passed. CONSTITUTION:An NCC(New Common Carrier)/NTT selection table and a route selection means selecting the most inexpensive line route based on said table are provided, and the route whose call rate is most inexpensive is selected and connected from the previously set call time and a toll number. When the call reaches the scheduled time, either method whether to transmit alarm sound or to compulsorily execute disconnection is taken. Thus, the call terminates in a timed approximate to the initially set call time, and to obtain the effect of the selection of the economic line route.