The stainless steel directory door station offers to the steeltech panel the ability of numeric call up to 64516 and name call up to 16000 apartments. It can also take for the door opening up to 16000 codes without using a number of panels of 16.000 in total. The introduction of each number (codes) and the responding names (characters) is done very easily either manually programming them from the same panel or from a PC or from PDA using Bluetooth.