John Legere
T-Mobile CEO John Legere at the GeekWire Summit 2014.

T-Mobile’s is again going after the competition, and this time it’s Verizon.

The Bellevue-based wireless carrier debuted a new promotion called “Never Settle,” which lets Verizon customers bring their number over to T-Mobile phone for two weeks. At the end of the trial period, customers can either return the phone at no cost or switch to T-Mobile and have the company pay off any termination or outstanding device payments up to $650.

T-Mobile CEO John Legere tweeted about the new deal, which runs from May 13 to May 31, calling Verizon’s service “old school wireless bullshit.”

T-Mobile offers a similar “Test Drive” deal as a way to try an iPhone 5S on T-Mobile’s network, on loan for seven days, without making a major commitment. This new promotion is targeted at Verizon customers, however.

T-Mobile, the nation’s fourth-largest carrier, is close to surpassing Sprint in terms of customers. Verizon still remains at the top, while AT&T — which T-Mobile attacked for the better part of the past two years — is second.

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