Every month we pay our month mobile bill, but is the billing actucally correct. Sciencitist have done some reaerch and discovered it might not be at all be accurate. No surprise here that cariers over charge their customers.
This question is more important to consumers than ever. Over the past year, the growth in the popularity of smartphones has led the largest U.S. mobile carriers to replace unlimited data plans with ones that place caps on data usage, and charge extra for exceeding those limits.
Working with three colleagues at the University of California, Los Angeles,computer science PhD researcher Chunyi Peng probed the systems of two large U.S. cell-phone networks. She won’t identify them but says that together they account for 50 percent of U.S. mobile subscribers. The researchers used a data-logging app on Android phones to check the data use that the carriers were recording. The carriers were found to usually count data correctly, but they tended to overcount—and hence potentially overcharge—when a person used applications that stream video or audio, and particularly when coverage was weak or unreliable.
