The company said Tuesday that the number of iPhones sold globally fell 1 percent in the first calendar quarter, compared with the samebr period a year ago, although revenue rose to $52.9 billion as more customers bought the supersized, more expensive iPhone 7 Plus.br Customers Waiting on New iPhones Crimp Apple’s Profits -br By VINDU GOELMAY 2, 2017br SAN FRANCISCO — Apple’s iPhone business is sailing squarely into the doldrums between new models.br Services grew 18 percent to $7 billion, and Mr. Cook saidbr that customers were paying for 165 million active subscription services from Apple and third parties.br Apple raised the amount of money it was willing to commit to stock buybacks by $50 billion, and Mr. Maestri saidbr that it would continue to buy despite the record price.br A version of this article appears in print on May 3, 2017, on Page B2 of the New York editionbr with the headline: Apple Profit Up, but iPhone Sales Fall in Anticipation of New Model.