AT&T and Comcast are partnering to authenticate calls made between the two networks, letting customers know when there’s a genuine caller — not a spammer — on the phone. It won’t cover every call AT&T and Comcast customers receive, but it’s a step in the right direction to battling the scourge of robocalls.
AT&T says the deal is likely the “nation’s first” to authenticate calls between two providers through the SHAKEN/STIR (which stands for “Secure Handling of Asserted information using toKENs” and “Secure Telephony Identity Revisited”) protocol. The protocol lets consumers know when a call they’re receiving is actually being placed by the displayed number listed on caller ID. AT&T and Comcast said they hope to have the system up and...
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