If arguing for completely getting out of your AT&T early-termination-fee isn’t your thing, you can try doing what Felix did and get 75% off it.
He negotiated with the CSR and said he would switch to a pay-as-you-go plan and not switch to MCI if they waived his ETF. She down to sell him a smaller package. He remained silent. She tried the reduced package again. He repeated that he would switch if charged. Then she offered 50% off. He restated his position once more and stayed silent. She tried the smaller plan again. He said no. Then she offered him 75% off. So now he’s free of annual contract and can switch to any other provider whenever he feels like.
Not a tactic that will make financial sense for everyone, but it might come in handy for some.