First of all, thank you all for your assistance in my previous post, it really helped. Now what I need to know is if there are any DSL installation classes, preferibly somewhere that would certify me, but if not just a class or a company that would give me a good knowledge base of DSL. Right now I dont work DSL tickets but there are a lot of voice repair tickets I do where DSL is also at the house. I've been told it's the same as working voice, but from what I've seen in the field it's different. Any assistance would b greatly appreciated.

Is there even such a thing? I mean DSL rides regular voice lines.

It's basically just like the old AML (Additional Main Line) units where you had two numbers on one cable pair. The trick is to get a filter at the entrance to extend to the sets and run a dedicated non-filtered line to the DSL modem unit. I normally have the line requested for the POTS used for the fax. The self install instructions want you to put a filter at each set (non-system reference for residential). Waste of time and filters. Good luck.

True but if you use a splitter do you still need the filters? Also, do the filters support multi-lines? There are a lot of xconnect boxes where there are ports marked for dsl use.... not sure why that is. And is there a way to figure out if someone has dsl at the box (like would any of the readings be different on a dynatel)? Yup, I'm clueless. Thats why I was trying to see if i could learn some of it on my own since we dont get the opportunity to work with it. I guess it's an in-house thing my company does since no one else has heard of an actual certification.

1 - If you use a splitter, you don't need filters.
2 - Some lines are marked for DSL use because they have been configured for DSL. A lot of lines work through a SLC (dubbed "slick") and have had a DSLAM wired into the unit, or it has one of the new consolidated port cards.
3 - Many butt sets will detect a DSL signal on a line, and there are some specialized test sets for DSL which, obviously, will detect the presence of a DSL signal.

Use a ts 44 from Harris, they have a built in filter so you won't interupt data to the customer.