Abstract: An intercom system includes a dwelling parent device installed in each dwelling, a collective foyer device configured to communicate with the dwelling parent device, and a control device configured to control the collective foyer device, which includes name plates on each of which a resident name for specifying a dwelling parent device of a resident is displayed so a visitor may call the resident, and dedicated buttons correlated with the name plates and capable of receiving an operation for calling the dwelling parent device corresponding to the resident name displayed on each name plate. The collective foyer device or the control device includes a calling table in which location numbers for specifying locations of dedicated buttons in a region of the collective foyer device are assigned. The respective resident names are assigned to the location numbers of the dedicated buttons visually recognizable to the visitor, on the calling table.

Abstract: In an intercom system to be used in an apartment complex configured by residential buildings and a centralized building that can communicate with the residential buildings, the residential buildings includes: residential room master devices disposed in residential rooms collective entrance devices—which can communicate with the residential room master devices; and a building controller. The building controller has: a building controller ID that, when one of the residential room master devices is called from the centralized building via the building controller, is used in recognition in which the centralized building recognizes the building controller; and a collective entrance device ID that, when the one residential room master device is called from the centralized building via the building controller, is used in recognition in which the one residential room master device recognizes the building controller as a virtual collective entrance device that is different from the collective entrance devices.

Abstract: In an intercom system which is to be used in an apartment complex configured by a plurality of residential buildings and a centralized building (5) that can communicate with the residential buildings, each of the residential buildings includes: residential room master devices (30) which are disposed in residential rooms, respectively; a plurality of collective entrance devices (10A to 10D) which can communicate with the residential room master devices (30); and a building controller which communicably connects the residential room master devices (30) of the residential rooms in the own building, with the collective entrance devices (10A to 10D).

Abstract: An intercom system includes a dwelling parent device installed in each dwelling, a collective foyer device configured to communicate with the dwelling parent device, and a control device configured to control the collective foyer device, which includes name plates on each of which a resident name for specifying a dwelling parent device of a resident is displayed so a visitor may call the resident, and dedicated buttons correlated with the name plates and capable of receiving an operation for calling the dwelling parent device corresponding to the resident name displayed on each name plate. The collective foyer device or the control device includes a calling table in which location numbers for specifying locations of dedicated buttons in a region of the collective foyer device are assigned. The respective resident names are assigned to the location numbers of the dedicated buttons visually recognizable to the visitor, on the calling table.