T-Mobile has to pay $ 40 million as part of an agreement after the FCC ruled that it violated the law by adding false tones to hundreds of millions of calls over several years. You must also act within 90 days and send a compliance report to the FCC once a year for the next three years.
The operator admitted that he added fake stamps to mislead customers into believing that the party they were calling was ringing their phones, when in fact the call had not yet been connected. The FCC said in a document: "A caller can hang up, thinking that nobody is available to receive the call … False ringing tones are a problem in calls to rural areas and are a symptom of the problems of damaged quality and completion of calls to rural areas. "
In 2014, the FCC issued an order to ban the practice of adding false ring tones. Users began to complain that T-Mobile was not complying with the ban, and the FCC launched an investigation into the actions of the carrier in response. T-Mobile then claimed that it had removed the fake ringtones, but users continued to complain until the FCC discovered the full extent of the T-Mobile violations.