Trim with decorative double lipped fastening structure comprising a first set of threads folded near a midpoint and knotted together providing a knot near a midpoint of the threads with a fringe end and a folded end on opposite sides of the knot. The invention has a mechanical conductive terminal set to output instruction signals when become conductive. The buffer amplifying circuit amplifies the PWM signal and generates an amplified signal. Temperature compensation allows the resonator to hold a resonance frequency despite changes in temperature, and can be achieved by selecting thermal coefficients of expansion of components holding or placing the ceramic disc and end cap relative to the outer plate. The method also includes assigning a higher priority to the call, in response to the caller committing to the predetermined time limit.