T-Mobile and AT&T Work Together to Give Customers New Call Authentication Protections

Business Wire 14-Aug-2019 9:05 AM

Competitors put differences aside to fight unwanted robocalls for customers

  • What's the news: Today, AT&T and T-Mobile are delivering SHAKEN/STIR caller authentication technology that works across both their networks, an important step towards industry-wide call verification.
  • Why it matters: U.S. mobile customers received nearly 48 billion robocalls last year – more than 150 calls for every adult! Unwanted robocalls aren't slowing down but caller verification can help customers better decide which calls they answer or ignore.
  • Who it's for: Anyone who is tired of the growing number of fraudulent robocalls.

T-Mobile (NASDAQ:TMUS) and AT&T (NYSE:T) today began rollout of cross-network call authentication based on SHAKEN/STIR standards – another big step toward protecting consumers from unwanted robocalls.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20190814005435/en/

SHAKEN/STIR technology lets consumers know that an incoming call is really coming from the number listed on the caller ID display – not a spoofed robocall or scammer. While authentication won't solve the problem of unwanted robocalls by itself, it is a key step toward giving customers greater confidence and control over the calls they answer.

For example, a call that is illegally "spoofed" – or shows a faked number – will fail the SHAKEN/STIR Caller ID verification and will not be marked as verified. By contrast, verification will confirm that a call is really coming from the identified number or entity. More calls will be verified over time as more device providers participate, and as more network providers implement the standards.

The FCC has recommended SHAKEN/STIR standards to digitally validate phone calls. The acronym stands for Signature-based Handling of Asserted Information Using toKENs (SHAKEN) and the Secure Telephone Identity Revisited (STIR).

For more information on all the ways T-Mobile is protecting customers, including capable handsets, visit https://www.t-mobile.com/resources/call-protection. For Metro by T-Mobile customers, more information is available at https://www.metropcs.com/shop/services/protection. For more information on all the ways AT&T is protecting customers, including capable handsets, visit https://about.att.com/story/2019/att_call_protect.html and https://att.com/CyberAware.

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About T-Mobile US, Inc.

As America's Un-carrier, T-Mobile US, Inc. (NASDAQ:TMUS) is redefining the way consumers and businesses buy wireless services through leading product and service innovation. Our advanced nationwide 4G LTE network delivers outstanding wireless experiences to 83.1 million customers who are unwilling to compromise on quality and value. Based in Bellevue, Washington, T-Mobile US provides services through its subsidiaries and operates its flagship brands, T-Mobile and Metro by T-Mobile. For more information, please visit http://www.t-mobile.com.

About AT&T Communications

We help family, friends and neighbors connect in meaningful ways every day. From the first phone call 140+ years ago to mobile video streaming, we innovate to improve lives. We're building FirstNet just for first responders and creating next-generation mobile 5G. With DIRECTV, DIRECTV NOW and WatchTV, we deliver entertainment people love to talk about. Our smart, highly secure solutions serve nearly 3 million global businesses – nearly all of the Fortune 1000. And worldwide, our spirit of service drives employees to give back to their communities.

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