One more question, I have a Harris TS22AL set, and I noticed they sell a p3218-441 ground start cord for this set. Now, I shouldn't need this right? Example: If the CO dropped a white blue/blue pair, my normal butt set would be the red lead (negative) connected to the blue(ring) and the black lead will touch ground to initiate dial tone. So I shouldn't need the cord, right? thanks again
