You are lucky they went with cat5. In my house there are phone lines everywhere, too, but real phone lines. Like in ISDN. That’s 8 strands plus some extra stran

You are lucky they went with cat5. In my house there are phone lines everywhere, too, but real phone lines. Like in ISDN. That’s 8 strands plus some extra strands (the European ISDN bus needs 4 strands, so for a faked star topology you need 4 to every room and 4 back). It is neither shielded nor twisted of course. Just plain dumb copper wires. On some connections a stable 10 Mbit link is possible. From what I gather the cables were installed around 2000…