A surface treated copper foil which is well bonded to a resin and allows the resin to have excellent transparency after removal of the copper foil by etching, and a laminate using the same are provided. Upon detection of the failing dim headlight bulb, a visual indicator is provided by at least 3 one-quarter second flashes of the dim headlight bulb. A control unit 16 determines the called extension terminal on the basis of the detected caller ID and the information stored in the storage means, so the extension terminal receives the call from the digital key telephone interface unit 13 or a standard telephone interface unit 15.