Wifi VDP, will change your mobile phone for indoor machine of intercom, let you no matter where, can through your mobile phone calls with his family. Or when we have visitors, can talk with him and confirm the identity, the remote to open the door.
Wifi VDP, will change your mobile phone for indoor machine of intercom, let you no matter where, can through your mobile phone calls with his family. Or when we have visitors, can talk with him and confirm the identity, the remote to open the door.