| CPC H04M 11/025 (2013.01) [H04M 9/001 (2013.01)] | 8 Claims |

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1. 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.
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