Even when you're going out , to notify the call of your home intercom.
Then , you can confirm the image of the visitor in real time . It is also possible to talk and unlock auto-lock.

[Primary function]
Confirmation of history information of visitors ( time and image ).
Indicating that the intercom is being called.

[Precautions]
Dedicated intercom system is required.
For the correspondence of propriety, Please contact the apartment management company .
Please you are sure that you have previously acquired as a "password" and "customer number".