Sprint Is Throttling Microsoft’s Skype Service, Study Finds

Sprint Corp. has been slowing traffic to Microsoft Corp.’s internet-based video chat service Skype, according to new findings from an ongoing study by Northeastern University and the University of Massachusetts.

More than 100,000 consumers have used the researchers’ Wehe smartphone app to test internet connections. Information from those tests are aggregated and analyzed by the researchers to check if data speeds are being slowed, or throttled, for specific mobile services.

Among leading U.S. carriers, Sprint was the only one to throttle Skype, the study found. The throttling was detected in 34 percent of 1,968 full tests -- defined as ...