Once you give up the lease you become responsible for all the wiring after it enters your house.
That wouldn't be a big deal though, since most phone companies offer inside wiring options. Most I've seen are a buck or two a month. Heck, it's just phone wire, not rocket science. I've never understood why people need to even buy the wiring protection.
Just amazing though that anyone would still lease a phone.
Yeah, but i pay $4.50 to cover that each month. Not $29!!! :O