Next week I get DSL installed. Anything that I need to know? Does DSL only work on old Copper telephone lines? What about Fiber Optic lines? Not sure what kind of lines I have. With all the static on my phone, they must be copper. I guess they're going to put filters on my other telephone lines? Do all the empty outlets need filters or just the ones that are actually being used? I have a monitored home alarm system, what to do about that? Will they use a DSL modem or just plug into my network ethernet card? Can they use my existing phone line thats in my dial up modem? Or will they need to split the phone line outside and have a dedicated DSL line? It may have been easier to get a cable modem instead? I don't really have an official "firewall." I do have my ISP firewall turned on. I do have the MSWindows XP firewall turned on. I went to DSL reports and did a Port Scan. I'm just a noob, teach me! What protection do I need when upgrading to DSL?