I looked at MCI, but the "InternetMCI voice mail system" is "Full". So you can't even leave a message to have someone call you back (800.582.1253, kinda funny since they spend all that money on advertising and customer's can't even contact them).
And heaven help you if you should have a problem dealing with the local branch MCI office for MCI installation. We placed an order last January, dealt with the salesguy extensively for about 6 weeks at which point he left the company and it turned out had never placed the order. The guy who took over from him has given us a runaround, requiring us to spend money on wiring contractors (upon which we'd be turned up "within 2 days"), thereafter requiring increasing amounts of documents and signatures and then nothing. Neither he nor his supervisor will return phone calls, even though I've been nothing but polite. (Perhaps that's the problem.) You have to practically hire a private detective to find an MCI contact outside of the branch office who will help (I haven't yet found one, although I've found direct line customer support, InternetMCI customer support, scads of other numbers, and the above-mentioned voice mail box that was also full when I tried it). They have an email address which eventually responds with the suggestion that you should call your branch office. The kicker: we're now getting billed, even though we've yet to get service. The bill includes an "expedite" charge plus CPE that we never asked for nor received. I suppose this is only peripherally (at best) an operations note. If there was an "internet-bureaucracy" list, I'd rant there. :-) -mm-