T-Mobile beats second-quarter phone estimates, shares jump

Its net income, however, dropped sharply due to costs associated with its merger with Sprint Corp, previously the fourth-largest phone provider, which closed in April.T-Mobile said it has overtaken rival AT&Tas the second-largest wireless provider in the United States across postpaid, in which customers pay a recurring monthly bill, and prepaid phones - customers paying for service in advance.T-Mobile reported 98.3 million customers in those categories, while AT&T had nearly 93 million p