Strike Out Numbers Attestation For Free

If a call is assigned full attestation, it means: The carrier is responsible for originating the call. The carrier has a pre-existing direct relationship with the customer who is making the call and can authenticate and identify this caller. The carrier can verify an association with the number used to make the call.

Gateway Attestation (C) ? The service provider has authenticated from where it received the call, but cannot authenticate the call source. An example of this case would be a call received from an international gateway.

"Gateway Attestation", "C", indicates the call can only be verified as coming from a known gateway, for instance, a connection to another service provider.

Partial Attestation (B) - The originator knows the identity of the caller, but cannot confirm their right to use the Caller ID. Gateway Attestation (C) - The identity of the caller is not known, as the call originated outside of the network, or internationally. C level is applied when A or B cannot be.

Full Attestation (A) - The identity of the caller is known, and they have the right to use the Caller ID for this call. Partial Attestation (B) - The originator knows the identity of the caller, but cannot confirm their right to use the Caller ID.

Before completing a call to the intended party, one of three levels of Attestation is assigned: Full Attestation, Partial Attestation, and Gateway Attestation. Full Attestation (A) means the service provider authenticated the caller and phone number.

Essentially, the attestation levels are designed to protect the integrity of the telecom networks and provide a way to signal confidence levels to other carriers that the calls can be trusted, and at what level.