So This isn't a unused ACD. This is your call pilot ACD. Don't mess around with this or you will have big problems on your hands. If 2000 is the CP pilot DN, and for some reason the call pilot won't aquire that ACd, then 2005 will perform default routing. These are all valid ACD's, so like I said, just leave them be. But through all this, at least you know now huh!