Inventors:
Hagop Sakadjian - Lake Forest CA, US
Assignee:
The Chamberlain Group, Inc. - Elmhurst IL
International Classification:
H04M011/00
US Classification:
37910206, 37910201, 37942801
Abstract:
Disclosed is a security gate phone entry system that allows a person located at a security gate, that bars access into a secure area, to call an occupant within the secure area. The phone entry systems only communication connection port is a standard telephone line jack. Communication with phone entry unit can be established with the phone entry unit by connecting a standard telephone line to the unit. Alternatively, the phone entry unit can be connected directly to a computer with modem by using a telephone line simulator to connect the computer with modem to the telephone line jack of the phone entry unit. Additionally, the phone entry unit can be connected to a central control unit by a private communication line through a telephone line simulator connected to the telephone line jack.