ATIS 1000092 PDF

The base SHAKEN framework enables a SHAKEN-authorized VoIP Service Provider to deliver a cryptographically protected assertion (the "attestation" value) to a terminating service provider that under specified conditions indicates the calling user is authorized to use the calling telephone number. This specification extends the base SHAKEN framework to enable SHAKEN-authorized TN Service Providers to issue delegate certificates defined in this document to their non-SHAKEN-authorized customers that allows the customer to prove it possesses an assignment or delegation of a calling TN to a SHAKEN originating service provider that is not also the TN Service Provider. This is one possible method for an originating service provider to determine that its customer's call is entitled to full attestation for certain enterprise or legitimate call spoofing scenarios where the originating service provider does not have a direct association with the calling entity and/or the calling TN.

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Number of Pages :	43
Published :	09/01/2020