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Certified Caller is a complete STIR/SHAKEN solution that enables service providers to authenticate and verify the caller telephone identity. This added layer of trust gives subscribers confidence in knowing who's calling so they can make a better decision about answering.

Again, Full Attestation, or an A rating, means that carriers: Are responsible for originating calls. Have pre-existing relationships with the caller and can identify and authenticate the caller. Can verify the association between the caller and the number dialed from.

If the call is authenticated the Verstat Parameter would be updated as ?TN validation passed.? If the call is not authenticated, then the terminating service provider would set it ?TN validation failed.? In this case, they can also block the call.

Attestation. In a STIR/SHAKEN call, the originating service provider signs (or attests) to their relationship with the caller and their right to use the calling number.

The FCC approved the mandate on March 31, 2020, under which large carriers must implement the systems by June 30, 2021, and smaller and rural carriers by June 30, 2022.

The STIR/SHAKEN framework, an industry-standard caller ID authentication technology, is a set of technical standards and protocols that allow for the authentication and verification of caller ID information for calls carried over Internet Protocol (IP) networks.

How do I know if my number is flagged as spam? Open Phone app on their device; Tap More options and then Settings and then Spam and Call Screen; Turn See caller & spam ID on or off.

SHAKEN/STIR will verify with a symbol such as a check mark that the person calling you is, indeed, authentic and calling you from the number on your screen. While call verification doesn't block robocalls from reaching your phone, it gives you more information to make a decision to answer the call.

These attestation levels distinguish a caller's validity to use a specific number. Read on to learn more about the attestation process, how it works, and why it's essential for improving the quality of your incoming traffic.