Code phone door station
The Code phone door station unit is an intelligent telephone connected to a telephone exchange, mounted on office entrance and enables visitors to call to any familiar extension or to the secretary station.
However, authorized personnel can enter by keying an access code.
Alternatively, any person receiving a call from the door can speak with the visitor and open the door from his telephone extension by pressing a particular key. Open the door from the inside is possible by pressing a bypass push button.