Gray Flannel Dwarf


Why would SDSL be avail when ADSL isn’t?

(cross-posted at

This one is pretty confusing to me – although I have my suspicions as to why, mentioned later – and I’m hoping someone out there can give me an answer.

Like most people in Loudoun County (Virginia), I can’t get DSL because of fibre in one form or another, be it lines underground or SLICs. Verizon tells me I can’t get DSL when I try prequal, as does Earthlink and all the major “consumer” oriented ISPs.

However, the strange part is that companies that offer “business” tiered DSL options, such as COVAD, Speakeasy etc., do give me DSL options… but only SDSL, despite the fact that the do have ADSL provisions.

A clearer example: If I try a prequal, requesting home service on either COVAD or Speakeasy’s site, I only get business-class SDSL options of up to 384 or 768. That is to say, while they do not specifically say “no, you can’t get regular consumer ADSL”, any such listing is excluded, and only business options are shown.

Why would a company be able to offer me SDSL of speeds up to 768/768, if regular ole consumer-oriented ADSL isn’t available?

It’s my suspicion that they’re a whole lot more willing to “stick their necks out”, placate business needs and get things fixed, when they’re going to make their $$$ selling “business-class”, SLA (service level agreement)-laden SDSL. However, if there is a technical reason, I’d be interested in learning it.


cswiii @ 12:05 pm

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