STIR/SHAKEN

When using DIDWW for outbound call termination no further actions are required from the customer’s side. The DIDWW numbers, which are used as caller-ID will receive the highest A attestation level, while the 3rd party source numbers will be appended with B attestation level.

Please follow the DIDWW news releases for more updates as STIR/SHAKEN guidelines and our offered options continue to evolve.

References:

RFC 8224 . Defines how SIP Identity tokens are used to authenticate and verify the calling number in SIP signaling.
RFC 8225 . Defines a method for creating and validating a token that cryptographically verifies a calling number.
RFC 8226 . Describes the use of certificates in establishing authority over telephone numbers.
RFC 7340 . Resents the Secure Telephone Identity Revisited (STIR) problem statement outlining challenges that have led to unauthorized robocalling and other illegitimate activities.