How can I attain the highest attestation for my calls to the US?

The highest attestation, 'A', is granted to customers who use a Plivo-rented US Direct Inward Dialing number (DID) as the caller ID for making outbound calls to the US. You can easily rent a US DID through our API or console.

Additionally, you can obtain a 'B' attestation for calls made using a verified US caller ID. You can verify your US numbers within Plivo's system using the Verified Caller ID API or console.

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