Hold the wires? We told the new guys that the phones worked better if you licked the ends of the wires before you clamped them down. Here watch how I do it (sticks both wires in mouth, pulls them out and connects to phone). Now you do your end (hand on the crank)"Hold these wires" (connected to a TA-312 field phone). "We have to make certain it is working" as you crank the handle.