CPPLUS IP VDP CP-UVK-711M SETUP AND INSTALLATION
By the help of the this video you can watch your home visitor at main door entry even you can two way talk with visitor and if visitor are belonging to you and you want to access your home and stay their and no one is at home so by remotely you can open your home with help of your mobile phone by using this device this is called VDP i.e video door phone.you can use multiple indoor and out door device for complete vdp solution in apartment or villa