U.S. federal trademark · Serial No. 74674691 · Reg. No. 2124657
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
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