Systems and methods for call spoofing detection

The registry check mechanism in the device verifies the legitimacy of incoming call numbers by comparing them against a stored registry, effectively preventing call spoofing and protecting users from fraudulent calls.

WO2026107631A1 Publication Date: 2026-05-28QUALCOMM INC +6
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Patent Information

Application Number
PCT/CN2024/132901
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-11-19
Publication Date
2026-05-28

AI Technical Summary

Technical Problem

Existing technologies fail to accurately detect call spoofing, allowing scammers to falsify caller IDs, which can deceive users into answering fraudulent calls.

Method used

A device or method that includes a registry check mechanism to verify the validity of an incoming call's phone number by comparing it against a stored registry of registered IDs, generating a call spoofing indicator based on the comparison.

Benefits of technology

Enhances the accuracy of call spoofing detection by determining whether an incoming phone number is legitimate, preventing users from being deceived by fraudulent calls.

✦ Generated by Eureka AI based on patent content.
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Abstract

A device includes a memory configured to store a first phone number indicated by a call invitation message. The device also includes one or more processors coupled to the memory and configured to receive, from a second device, the call invitation message associated with a call from the second device. The call invitation message indicates the first phone number as an originating phone number of the call. The one or more processors are configured to send, to the second device, a registry check request that includes the first phone number, and to receive, from the second device, a registry check response that indicates whether the first phone number is included in a registry associated with the second device. The one or more processors are configured to output a call spoofing indicator associated with the call and that is based on whether the first phone number is included in the registry.
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