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Service providers that have implemented STIR/SHAKEN can request these headers to be sent by Creating a Support Ticket. Please be ready to include the list of Endpoint Groups that you would like to receive the headers for.
Inbound Verification (STIR/SHAKEN verification results)
You may configure Inbound Verification at the Endpoint Group-level. The options are verstat, which sends STIR/SHAKEN verification results in the P-Asserted-Identity field, or header, which passes the entire STIR/SHAKEN header to your network (TCP Transport Type is recommended for this). For more information, please see our Wiki article on Endpoint Groups.
Will VI provide attestation for invalid Caller IDs?
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