74674691
May 16, 1995
Dec 30, 1997
electronic interface control unit for connecting to an alarm control panel and to a telephone system for receiving incoming data from a touch-tone telephone, transferring the data to the panel and for generating voice signal security system prompts for transmission over the telephone system, for use in fixed-location residential, commercial and industrial building security system applications which monitor or control the physical condition of the building, and not for use in the field of personal security
Electrical and Scientific Apparatus