verland, your qausi-qausi right. Phantom numbers are used for a variety of reasons. Lets say you have a Sales person who is never in the office, but has a voice mailbox that they need to access and that people in the office need to transfer calls to. In this case, you would use a station adjunct and renumber it to coincide with your extension plan. This way, you do not use any actual 'physical' hardware to accomplish your goal.