Crackling Line
There can be a number of reasons why you are getting a crackling line.
- The telephone extension wiring in your house has perished may be cracked or the outer casing split especially if the cable is running under a carpet and not around the edge of the skirting board also watch out for the carpet grippers as the cable could have the gripper nail through it.
- There could be a fault on your main incoming line which will transfer to every telephone point in your house.