Joe, just call them up--the AT&T, not my fave company but it is best to deal directly with those that run the infrastructure--and ask them what that message meant and whether its a condition that they will be fixing in the near future. You probably won't get this info from the DSL help desk, but ATT should have an office that deals specifically with configuring lines for DSL. (Bell Canada does; when I was a DSL help-desk tech, we really didn't know shit about all those mysterious conditions that can prevent DSL working in a particular location, we just referred those questions to the Bell High Speed Office. But this does not mean we didn't know how to fix problems if given a chance; I take exception to some of the pejorative comments about helpdesk--but you never know if you're going to get a rookie or a veteran at first-level tech support).

The answer to your question "why can't I get DSL if it is available in my area" is that it has to be both provided in your area, and the configuration of lines from the CO into your house, and inside your house, has to be acceptable. This varies according to distance, what else is on the lines, and the age and condition of the lines.   

Seriously, if choosing between DSL and cable service, take whichever one you can get. If it has problems for the get-go, try the other.   

Also--SRS is essentially mixed up about filters and lines. There's no reason at all to have a dedicated line for DSL--it's whole point is that it works fine on the same line you use for voice phone. You filter the voice phones NOT the DSL connection. The filters may prevent some noise on the phone line, but are 100% necessary for the DSL modem to sync to the network.

Finally, my experience is that since my ISP provides the DSL modem, it is their responsibility to replace it when a thunderstorm blows it up. I had a new one within 24 hours of phoning them. Their nickel. (And you're not supposed to run it through a surge protector)

Finally, if you do get DSL, don't get sucked into paying extra for them to install it. It's a simple procedure if you follow the instructions and you can call the helpdesk if you get stuck. This is something they DO know about.

Good luck.

W-O