WASHINGTON D.C.: As part of a settlement with the Federal Communications Commission (FCC), following a 12-hour outage in June 2020 resulting in tens of thousands of emergency 911 calls failing, T-Mobile will pay some $19.5 million.

The agreement was announced by the FCC, which stated that T-Mobile agreed to pay the settlement and adopt a compliance plan to resolve its 911 outage issues, as well as provide follow-up notices within two hours of initial outage notifications.

The FCC noted that on 15th June, 2020, a 12-hour and 13-minute outage took place that led to congestion across T-Mobile's 4G, 3G and 2G networks, which resulted in the "complete failure" of more than 23,000 911 calls, as well as tens of thousands of 911 calls without location or available call back information.

In a statement on Wednesday, T-Mobile told ABC news, "We understand how critical reliable connectivity is to ensuring public safety, and we take that responsibility very seriously. We have built resiliency into our emergency systems to ensure that our 911 elements are available when they are needed."

"This was a short-term isolated outage, and we immediately took steps to further enhance our network to prevent this type of event from happening in the future. Now we are moving on from the FCC's investigation, and continuing our focus on our ongoing network build," it added.

This week's settlement follows a cyberattack that T-Mobile recently disclosed to customers.

In August, the company said a data breach compromised the personal information of millions of current and prospective customers, after a "highly sophisticated cyberattack."