Fraud Types
Presenting a calling number the caller is not authorized to use, in order to disguise the call's true origin or impersonate a trusted party.
Spoofing is not illegal in itself — call centers, hospitals, and delivery services legitimately present a main office number. It becomes illegal under the Truth in Caller ID Act when done with intent to defraud, cause harm, or wrongfully obtain something of value.
Common patterns include neighbor spoofing (matching the first six digits of the called number), impersonating government agencies or banks, and spoofing numbers that are never used for outbound calls at all.
Spoofed traffic on your switch is the fastest route to a traceback, an FCC inquiry, and downstream blocking of your entire number range.
Evidence that a customer is genuinely authorized to use the telephone numbers they present as caller ID.
A list of telephone numbers that should never appear as the calling number, such as inbound-only government and bank lines, which carriers may block outright.
The FCC-mandated framework that cryptographically signs calling numbers so terminating carriers can verify the caller ID was not spoofed.
Using phone calls, usually with a spoofed or impersonated caller ID, to trick victims into revealing credentials, codes, or payments.
SipShield scores live SIP traffic with patented AI so the controls behind this term run automatically — and leave the audit trail regulators expect.