The U.S. Federal Communications Commission needs to improve its oversight of mobile telephone carriers, because the agency has no way to measure the outcomes of the tens of thousands of complaints it receives each year, the U.S. Government Accountability Office (GAO) said in a report released Thursday.
Even though 84 percent of U.S. mobile-phone customers are very or somewhat satisfied with their service, many U.S. residents aren't aware that they can complain about problems to the FCC, and a significant number of customers have had problems with billing, terms-of-service contracts, or customer service, said the GAO, based on surveys it conducted.