Eric S. Sande: > The DSL signal rides on top of the normal analog voice bandwidth > signalling on a norrmal T0 telephone line. It is sufficent to use a > filter to attenuate that signalling noise at individual phone sets to > allow normal analog voice (or modem) communication without noise. > > This is why we use the individual jack/filter strategy. It is easier > for the user and it is cheaper for the provider. > > This strategy basically means the whole subscriber loop (all of your > home telephone jacks) are DSL "hot".
That unfortunately also is the greatest source of problems for DSL users. I'ld personally suggest a splitter/filter at the interface between the phone company and the customer, and running a homerun from the DSL port on the splitter to where the DSL modem or modem/router will be. It also means that if problems develop like for example slow DSL speeds, the customer can do most of the troubleshooting just by first unplugging the run to phones and seeing if the DSL starts working. If there is noise on the phone section, suspect the filter/splitter doesn't work. > The plus side of this is that no rewiring is necessary other than plugging > in the filter, the phone, and the router. The negative is that all of your > phone stations also have to be filtered individually. But it leaves a major trouble shooting headache if anything goes wrong. I'm not in the business, but I constantly see folks with filters on every phone who can't successfully troubleshoot, which leaves a major headache for the tech who has to come out. I don't really think it's cheaper to filter every line. > But it's easy. George W. Bush could set this up. But could he fix it? ************************************************************************* ** List info, subscription management, list rules, archives, privacy ** ** policy, calmness, a member map, and more at http://www.cguys.org/ ** *************************************************************************
