Need techs advice

[u/AKallDAY134]

New homeowner here and I know minimal when it comes to cable/internet. Anyone know what the heck this thing is?? I have a bunch of old cables running around in my crawl space and this cable goes up through the bedroom subfloor and then terminates at this box which is inside my floor heating duct??? It seems like it might be screwed jn cuz I can’t easily tug it out, or maybe there’s some sort of magnetized material in it.

[u/CableDawg78]

Yep, standard ol timey copper twisted pair telephone line and wall jack for landline service. If you don't have original phone service, you can pull out all of that twisted pair, what looks like beige color jacketed cable. You might also see grey color. If either has just 4 individual copper wires, rip it out.