An interphone system for an apartment complex composed of a plurality of dwelling buildings (A-E), and a central building (5-1, 5-2) capable of communicating with the dwelling buildings, wherein: each of the dwelling buildings (A-E) includes: apartment parent devices (30A, 31A, 32A, 33A, 34A, 35A, 30B, 31B, 32B, 33B, 34B, 35B) which are installed in apartments, respectively; a plurality of terminal devices (10A, 11A, 12A, 10B, 11B, 12B, 20A, 20B) capable of communicating with the apartment parent devices; and a building controller which is connected to the apartment parent devices of the apartments and the plurality of terminal devices provided in the corresponding building, each of the apartment parent devices, the terminal devices, and the building controllers has a setting file able to contain control contents for control of the corresponding device, the interphone system being characterized in that it further includes a setting apparatus capable of accessing each of the setting files of the apartment parent devices, the terminal devices, and the building controllers, and in that the setting apparatus includes: an accessing unit (81A, 82A, 83A) configured to access at least one registered setting file of a first device amongst the apartment parent devices, the terminal devices, and the building controllers and at least one unregistered setting file of a second device amongst the apartment parent devices, the terminal devices, and the building controllers, each registered setting file containing control contents for control of the corresponding device, and each unregistered setting file containing no control contents for control of the corresponding device; a display unit configured to display the control contents of the plurality of accessed setting files; and a control unit configured to be able to copy the control contents of the registered setting file displayed on the display unit into the unregistered setting file. each of the dwelling buildings (A-E) includes: apartment parent devices (30A, 31A, 32A, 33A, 34A, 35A, 30B, 31B, 32B, 33B, 34B, 35B) which are installed in apartments, respectively; a plurality of terminal devices (10A, 11A, 12A, 10B, 11B, 12B, 20A, 20B) capable of communicating with the apartment parent devices; and a building controller which is connected to the apartment parent devices of the apartments and the plurality of terminal devices provided in the corresponding building, apartment parent devices (30A, 31A, 32A, 33A, 34A, 35A, 30B, 31B, 32B, 33B, 34B, 35B) which are installed in apartments, respectively; a plurality of terminal devices (10A, 11A, 12A, 10B, 11B, 12B, 20A, 20B) capable of communicating with the apartment parent devices; and a building controller which is connected to the apartment parent devices of the apartments and the plurality of terminal devices provided in the corresponding building, each of the apartment parent devices, the terminal devices, and the building controllers has a setting file able to contain control contents for control of the corresponding device, the interphone system being characterized in that it further includes a setting apparatus capable of accessing each of the setting files of the apartment parent devices, the terminal devices, and the building controllers, and in that the setting apparatus includes: an accessing unit (81A, 82A, 83A) configured to access at least one registered setting file of a first device amongst the apartment parent devices, the terminal devices, and the building controllers and at least one unregistered setting file of a second device amongst the apartment parent devices, the terminal devices, and the building controllers, each registered setting file containing control contents for control of the corresponding device, and each unregistered setting file containing no control contents for control of the corresponding device; a display unit configured to display the control contents of the plurality of accessed setting files; and a control unit configured to be able to copy the control contents of the registered setting file displayed on the display unit into the unregistered setting file. an accessing unit (81A, 82A, 83A) configured to access at least one registered setting file of a first device amongst the apartment parent devices, the terminal devices, and the building controllers and at least one unregistered setting file of a second device amongst the apartment parent devices, the terminal devices, and the building controllers, each registered setting file containing control contents for control of the corresponding device, and each unregistered setting file containing no control contents for control of the corresponding device; a display unit configured to display the control contents of the plurality of accessed setting files; and a control unit configured to be able to copy the control contents of the registered setting file displayed on the display unit into the unregistered setting file.