手机用户的权利将得到更好的保护

摘要

For years, advertisers have dreamed of taking advantage of technology that discloses a cellphone caller's location to send text messages promoting nearby restaurants and retail stores. But until recently.when wireless carriers began to upgrade their systems to comply with a federal mandate that they be able to locate anyone dialing 911. few wireless companies had the ability to track the whereabouts of all of their customers.