first, you must have a normal "new" phone line. New as in dsl transmittable.
the french offer a very hi speed dsl, along with free home phone(it is my same old phone i have always had , i plug it in to the back of the free modem) and discounted calls to cell phones, a wifi modem ( giving the ability to have multiple computers without going to wally world to buy it), tv signal ( i do not have this service, so i do not know what it costs if any)
The uk site offers very similar except i did not see tv mentioned.
SO: i have a normal phone line i pay for, to the phone company.
Then i pay 36 dollars a month to have a very hi speed dsl connection with multiple computers connected and free home phone to home phone calling anywhere in france.I only use my phone LINE as an internet connection ONLY.
EDIT: btw, american phone companys are already in progress of sending americans a tv signal through your dsl connection. And that will be an addtional payment as well.