at&t

T-Mobile and AT&T say US regulators should drop a plan to require unlocking of phones within 60 days of activation, claiming that locking phones to a carrier's network makes it possible to provide cheaper handsets to consumers. "If the Commission mandates a uniform unlocking policy, it is consumers—not providers—who stand to lose the most," T-Mobile wrote in an October 17 filing with the Federal Communications Commission.The proposed rule has support from consumer advocacy groups who say it will give users more choice and lower their costs. T-Mobile has been criticized for locking phones for up to a year, which makes…