Taken from article:
T-Mobile (TMUS) - Get T-Mobile US, Inc. Report agreed to pay $19.5 million to settle a Federal Communications Commission complaint over a 12-hour nationwide outage that resulted in thousands of failed 911 calls.
The company must also put a compliance plan in place that contains new commitments by T-Mobile to improve the 911 outage notices given to call centers, or public safety answering points, the FCC said in a consent decree.