Video door phone
Video call for a front door in an apartment. Video door phone. : Video Door Phone
Quote from Article entitled Video call for a front door in an apartment. Video door phone.:
In addition, door video calls device (video interphone) can be equipped with additional features.infrared camera lights will allow you to shoot in complete darkness;given audio channel allows you to talk to a guest;recording starts when the signal is sent out from the motion sensor;remote surveillance with the help of internet technologies;voicemail function.
The full version of the article can be found here.