Security is the utmost concern now a days and stand-alone or integrated Video Door Phone systems can be used to manage visitors .Calls made at the entrance to a building (residential complex, detached family home, workplace, etc.) and access is controlled by audiovisual communication between the inside and outside. Multi -apartment video door phone systems can be offered for Villas, residential complex, flats …etc and the solutions are from the market leaders like Samsung, Crystal..etc.