Understanding STIR/SHAKEN

https://transnexus.com/whitepapers/understanding-stir-shaken/

The Federal Communications Commission (FCC) has been encouraging the telecommunications industry to develop a solution to stop robocalls and spoofed calling numbers since 2014. The industry’s response has been to develop a new technology standard called STIR [1] (Secure Telephony Identity Revisited) and SHAKEN [2] (Secure Handling of Asserted information using toKENs) which defines how telephone service providers should implement the STIR technology to ensure calling numbers are not spoofed.