JPS57181258A - Called subscriber searching and calling system - Google Patents

Abstract

PURPOSE:To achieve connection with an extension telephone set where there is a desired person by allocating an individual number to every extension subscriber, and then providing a memory stored with numbers of extension equipment terminals where extension subscribers stay actually. CONSTITUTION:When an extension subscriber A dials this service set code and then dials the individual number of the subscriber A and the number of an extension telephone set 101A where there is the subscriber A actually, a central controller 105 controls an extension telephone number information memory 106 to search for the extension equipment terminal number of the telephone set 101A from the dialed number. Then, the device 105 controls an individual number information memory 107 to store the searched extension equipment terminal number of the telephone set 101A in a memory area which corresponds to the individual number of the subscriber A. When an extension subscriber B dials the individual number of the subscriber A by using an extension telephone set 101B, the controller 105 controls the memory 107 to read the extension equipment terminal number of the telephone set 101A where the subscriber A stays actually from the dialed number.