Twilio has achieved full compliance with the STIR/SHAKEN protocol which ensures phone calls transmitted via its platform are legitimate and authenticated.
All of Twilio’s calls will be stamped with an approval attesting to the fact that terminating service providers and end users can trust that the call is not illegally spoofed.
STIR/SHAKEN (Secure Telephone Identity Revisited/Signature-based Handling of Asserted information using toKENs/) is a set of protocols developed by the Internet Engineering Task Force (IETF), the Alliance for Telecommunications Industry Solutions (ATIS) and the SIP Forum that verifies not only whether a caller has the right to use a calling number but that the caller is a known entity by the originating party.
Twilio also announced that it has enrolled in the Federal Communications Commission’s Robocall Mitigation Database through which voice service providers are required to inform the agency of their robocall mitigation efforts. Participants in the telecommunications ecosystem must indicate if they are using STIR/SHAKEN protocols on originating calls.
If a service provider cannot sign all calls with the protocols, they must submit their own plan to the FCC on how they will block or mitigate illegal robocalls. Non-participants also risk losing their ability to originate calls and potential enforcement actions against them by the FCC if they are found to be hosting illegal robocalls on their networks.