I have one hooked up to the cable too.....They fucked-up my bill years ago and gave it to me for free.No shit. And $204 a month. But that includes high-speed cable, fiber optic internet access with up to six email addresses, and a landline phone.
Yes, a landline.
I use it to make long-distance calls when i'm too sorry to go out and get my "smart" phone outta the car.