A digital wake-up signal is generated from an analog switch output by providing an interruption in a conductive ground or switch trace on a printed circuit board in which the ground trace and multiple conductive switch traces are bridged by a moveable contactor responsive to movement of an actuator. Movable insert members are provided in the mold cavity, particularly at the ends of the structural rib members. When a new incoming call is presented to the packet telephony gateway, the program checks a present CPU utilization CPUP.