Just as predicted, T-Mobiles latest hyped up new plan to change the cellular industry is this: the company will pay your early termination fee if you agree to switch. While T-Mobile CEO John Legere hasnt yet announced it on stage, the company just issued a press release confirming the plan. Youll also need to trade in your existing phone, buy a new T-Mobile phone, sign up for a new T-Mobile plan, and even port your existing phone number to T-Mobile — in case you werent going to do that anyways. T-Mobile also wont be paying out a lump sum of $350, but rather the actual amount you pay your existing carrier if you break your contract to switch.