I was investigating what appears to be a dead DSL wall jack, and I saw this in the external wire that connects the box to the wall jack:
(Sorry for the terrible quality, I'll take better pictures tomorrow, but I wanted to get this out tonight)
It appears that the cable has been spliced together at some point in the past. On further inspection, I noticed some corrosion on the wires around the spot. I'm figuring this is the source of my problem right now and that if I could peel the wires back a bit more, cut the old part, and re-connect them, it might be my best chance at fixing the problem myself. However, I'm not sure exactly how this work and what these connectors are.
Edit: after a bit more research, I found the connectors to be phone wire splice connectors.
If I bought a couple of them, do you have any helpful hints?