From : AT&T is adding company logos to caller ID to help you sort authentic calls from scams.
US carriers have been using a caller authentication system, the Stir/Shaken protocol, for years to fight robocalls. The technology uses digital signatures to prove that real businesses are calling people. AT&T is partnering with credit reporting agency TransUnion to roll out Branded Call Display, adding another layer of verification.
Branded Call Display uses logos from participating companies to let AT&T customers know that they're receiving a call from an actual company. The calls must first be verified using the Stir/Shaken protocol to prevent malefactors from spoofing images of trusted companies.
Branded Call Display works on both iPhone and Android devices, and phone owners won't need to do anything to get the functionality. If your provider uses Branded Call Display, you'll start to see company logos popping up.
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