Multiple dwelling house interphone system

A multiple dwelling house interphone system configured to respond to a call from a collective entrance machine installed at an entrance by not only a dwelling room master device installed in an individual dwelling unit but also a mobile phone carried by a dweller, the multiple dwelling house interphone system comprising:

• a communication management device that transmits a call signal from the collective entrance machine to the mobile phone and controls communication between the collective entrance machine and the mobile phone,
• wherein the communication management device relays the communication to the mobile phone registered as a calling destination of the collective entrance machine so as to be linked to the dwelling room master device using a predetermined application based on a VOIP (Voice Over Internet Protocol),
• wherein when a predetermined registration operation to allow the communication with the communication management device based on the VOIP is performed to link the mobile phone to the dwelling room master device,
• wherein an information list of mobile phones that are already registered relative to the dwelling room master device as a link target is transmitted from the communication management device having accepted the registration in addition to an application for a download, and
• wherein the mobile phone that has downloaded the application displays the information list on a display section of the mobile phone.