SIP & Network
A telephone number assigned to a customer that routes inbound calls directly to a specific endpoint, and is typically used as their outbound caller ID.
DIDs are provisioned in blocks and reassigned over time. A number recycled from a previous owner may already carry a poor reputation or complaint history before your customer ever uses it.
Which DIDs a customer is authorized to present is the core input to any honest attestation decision.
Maintaining an authoritative map of which customer may present which DID is what makes automated A attestation both possible and defensible.
Evidence that a customer is genuinely authorized to use the telephone numbers they present as caller ID.
The three confidence levels an originating carrier assigns when signing a call, describing how well it knows the customer and their right to use the calling number.
The ITU standard number format that gives every phone number a globally unique representation: a plus sign, country code, and subscriber number.
Analytics-driven tags such as 'Scam Likely' or 'Spam Risk' that terminating carriers and handsets apply to inbound calls.
SipShield scores live SIP traffic with patented AI so the controls behind this term run automatically — and leave the audit trail regulators expect.