INTERCOM SYSTEM AND DATA TRANSFER METHOD IN SAID SYSTEM

摘要

An intercom system to be used in a housing complex constituted by a plurality of dwelling buildings is provided in which each of the plurality of dwelling buildings is provided with a dwelling parent device 30 installed in each dwelling, a collective foyer device 10 with which it is possible to perform a calling operation for calling the dwelling parent devices 30, and a building control unit 40 configured to communicatively interconnect the dwelling parent device 30 in each dwelling of the host building and the collective foyer device 10 via an intercom line, the collective foyer device 10 includes a storage unit 105 in which terminal information of the collective foyer device 10 is stored, the collective foyer device 10 or the building control unit 40 is capable of performing communication with an external device 80 connected to an external network N2, and data on the external network N2 is transferred to the collective foyer device 10 or the building control unit 40 by using the external device 80 as a communication medium.