Secure Telephony Identity Portal

What is STIR/SHAKEN?

STIR/SHAKEN is a framework designed to allow the telephone industry to combat fraudulent robocalls and illegal phone number spoofing. STIR stands for Secure Telephony Identity Revisited. SHAKEN stands for Secure Handling of Asserted information using toKENs. STIR/SHAKEN allows carriers to securely transmit information identifying the source and destination phone numbers, as well as a trust level for outgoing calls, also known as an attestation. There are three possible attestations:

A

The service provider knows the customer and their right to use the phone number.

B

The service provider knows the customer, but not the source of the phone number.

C

The service provider has originated the call onto the network but can’t authenticate the call source e.g., international gateway.