>what is UUCP? It's a file transfer protocol, traditionally run over phone lines (but it also works over TCP/IP.) It's used for mail and news transfer in some places. >and what is Frame Relay? It's a low-level communications protocol; some ISPs use it on their backbones. (This is a ``if you have to ask then you don't need to know'' ones, perhaps...) ttfn/rjk