> The idea of implement something like reverse-path forwarding on SS7 switches would for example greatly cut down on robo-calling. SHAKEN & STIR [0] should (ho

> The idea of implement something like reverse-path forwarding on SS7 switches would for example greatly cut down on robo-calling. SHAKEN & STIR [0] should (hopefully!) eliminate most of the issues which result from "spoofing" caller ID. From "Combating Spoofed Robocalls with Caller ID Authentication" [1]: > "[The FCC] adopted new rules requiring all originating and terminating voice service providers to implement caller ID authentication using STIR/SHAKEN technological standards in the Internet Protocol (IP) portions of their networks by June 30, 2021." -- [0]: https://en.wikipedia.org/wiki/STIR/SHAKEN https://en.wikipedia.org/wiki/STIR/SHAKEN [1]: https://www.fcc.gov/call-authentication https://www.fcc.gov/call-authentication