I have no voice phones in my house. I only have one phone line running into the office for the DSL modem. I would like to run this through my attic instead of outside where the wire is so degraded from the weather, I feel I am losing strength.
This would go from the NID to the jack in the wall and thus to the DSL modem.
I have a whole bunch of CAT5 laying around so there really isn't a need for CAT3. I was just curious if I would see a performance increase from what I have NOW to CAT5 I would install soon.
My guess is, if you didn't have the issue of degraded wire (is it worn through anywhere?) just rewiring from cat 3 to cat 5 wouldn't give you a speed increase here. You are before the dsl modem - this signal is designed to run over POTS phone wire even.