BELLEVUE, Wash.--(BUSINESS WIRE)--T-Mobile US, Inc. (NYSE: TMUS) will host an earnings call and an extended, open conversation to discuss the company’s second quarter 2015 financial and operational results on Thursday, July 30, 2015 at 11:00 a.m. Eastern Daylight Time (EDT). Similar to past quarters, prepared remarks will be kept to a minimum in order to provide more time for free-flowing dialogue with analysts, investors, media and consumers. Participants will have multiple ways to submit ques