preferably has a touch tone decoder 123 for receiving and transmitting numbers as dual tone multifrequencies dtmf dual frequencies the invention is not limited to wireless communication but may communicate in the alternative through a wired station set external to the secure area the communicator is arranged to accept a smart card 125 which includes data storage relevant to the card holder the smart card may include information such as an id number a pin i e also stored at the entry access system or other information relevant to the user in the alternative to a smart card certain of this information may be entered by the user through the communicator keyboard a more detailed disclosure of the entry access system is shown in the fig2 the entry access system includes a stored data base 201 of id numbers of the authorized entrants to the secure system this is connected to the bus 202 also connected to the bus are a data base 203 of pin numbers of authorized entrants and in out unit 205 for connecting to a subscriber telephone set of the entry access system an encryption engine 207 is operative for examining input pin and id numbers and generating a arbitrary multidigit number.