Also when builder add those rewired areas they rarely.centrally locate the equipment box/closet/area for maximizing coverage. Even sometimes locating them next to a thick wall or the worst in one of those metal boxes that was said above.
And who knows if they tested the rewiring for contunity or bad terminations on jacks. Can always add on the $10 plan that cover all inside wiring anytime you call for a Cox technician then remove it if not used as soon as the appointment is over or the next day. You will only be charged for when you had coverage. And Cox has no wait time before the plan goes into effect (phone companies tend to have an eight day wait for thier inside wire plans to go into effect.
I have added and can led that plan manyany times and no Cox representative has ever had any issues with this practice. It only costs 33 cents a day or so.