I just left Direct TV last month. I had one month left on my contract, I completed that month, paid the bill, and said, "good-bye." It wasn't a harsh dismissal. I wasn't angry. I didn't berate anyone on the phone because of high bills or bad customer service. I simply did not want to pay for something that I am not going to use. (There are only 4 episodes of LOST remaining, so once that is over, there will no longer be any ties between me and the TV.)
Truth is, I am just too busy to watch TV. If I have a spare moment, I want to read. I want to spend time with my wife and my children. I want to study for the next sermon. I want to accomplish some little unfinished project on my house. These are the things that I want to do. So, I broke up with Direct TV.
That is when the calls started. No voice-mail. No messages of any kind. Just silence. I called it back once, and it was Direct TV!
So, thanks the the amazing powers of Google Voice... They are now blocked! Now, when they call, they will receive a very official sounding, "I'm sorry. The number you dialed has been disconnected..."