My basement has this mounted on the joist:
Which appears to be a POTS/coax panel(?)
Each room has panels that are coax and rj11 combined. What I was thinking of doing was using electrical tape around an existing rj11 line in the basement and pulling that up via the office, since it appears this was put on far after the home was built and should not be stapled.
Then, I was planning on terminating the CAT6 with RJ45 in the rooms.
My question is mainly: how safe is it to pull on those wires? I don't know if these sorts of runs have electrical running or something, I don't think they do. They also don't appear to be connected to the old Bell Atlantic POTS panel on the right (not pictured).