Sounds like something you should talk to ATT tech support about. AT&T does their own digital phone service and could be routing calls through that. You never can be sure why AT&T does things the way they do, but it usually involves money. -- Chad Walstrom <chewie at wookimus.net> | a.k.a. ^chewie http://www.wookimus.net/ | s.k.a. gunnarr