The telephone company 'provided for free' surge protector is inside a
grey box call an NID or Network Interface. One side of that box is
labeled customer interface. Interior wire that plugs into that side of
box and all wires inside the house are responsibility of the home
owner. Phone company will do nothing to those wires except if hired to
fix or modify those wires for maybe $70 per call. Or if telco has been
paid a monthly service contract.

Anything after that NID is responsibility of the homeowner. FCC Part
68 defines this demarcation point - a point that should be no more than
30 cm beyond where interior wire exits the building.

An obsolete protector that is creating noise is responsibility of the
building owner and should be removed. It's function has been replaced
by a superior device inside NID.

wrote:
Good advice. It is the telephone company problem. Do not bypass this
device! It protects you against a lightning surge.