Inside Wiring

Inside Wiring: That telephone wiring located inside your premises or building. Inside Wiring starts at the telephone company's Demarcation Point and extends to the individual phone extensions. Traditionally, Inside Wiring was installed and owned by the telephone company but now you can install your own wiring. And most companies installing new phone systems are installing their own new wiring because of potential problems with reusing the old telephone company cable.

Inside Wire or Line Backer: names of products sold by LECs (Local Exchange Carriers) to their customers as "insurance" on their inside wire. Customers pay upwards of $5 per month in order not to have to pay the phone company a pile of cash if something goes wrong with their inside wiring.