Caller ID Shielding for Scam Call Protection
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Solution Overview
Problem
Scammers exploit vulnerabilities in telecommunication networks by spoofing caller IDs, leading to increased chances of users answering scam calls, and users may attempt to call back scammer numbers without warnings, potentially falling into scams.
Innovation Solution
Implementing a system where the telecommunication network shields scammer caller ID information from target users and warns users when attempting to call likely scammer numbers, by modifying caller ID information to 'Anonymous' and providing scam announcements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If the telecommunication network provides caller ID information to users, then users can identify incoming calls, but scammers can spoof their phone numbers to appear legitimate, increasing the likelihood that recipients will answer scam calls
Solution Approach 1:
The patent introduces a spam indicator as an intermediary element that mediates between the caller ID information and the recipient. This indicator acts as a warning signal that alerts users to potential scam calls without completely blocking the caller ID information, thus resolving the contradiction by providing both identification and protection
2Object-affected harmful factors
If the telecommunication network blocks all scammer caller ID information, then users are protected from scam calls, but users lose the ability to identify and potentially block unwanted calls themselves
Solution Approach 1:
The patent applies local quality by selectively modifying caller ID information based on the specific call context. Instead of uniformly blocking all caller ID information, the system selectively displays spam indicators only for calls identified as potential scams, while preserving caller ID information for legitimate calls, thus protecting users without causing information loss
3Ease of operation
If users can see scammer phone numbers in call history, then users can manually block numbers, but users may attempt to call back scammer numbers without warnings, potentially falling into scams
Solution Approach 1:
The patent implements preliminary action by displaying spam indicators in the call history before users have a chance to callback scammer numbers. This advance warning allows users to recognize potential scam numbers in their call history and avoid callback attempts, thus preventing harm before it occurs while preserving user control
Data Source
AI summary
When an application server receives an invite message associated with a call from an originating user equipment (UE) to a terminating UE, the application server can determine if one of the originating UE or the terminating UE is associated with a scammer. If the originating UE is associated with a scammer, the application server can remove the scammer's caller identification (ID) information from the invite message, such that a user of the terminating UE cannot use that caller ID information to make a return call to the scammer. If the terminating UE is associated with a scammer, the application server can remove caller ID information associated with the originating UE from the invite message to hide the calling party's information from the scammer, and/or invoke playback of a scam announcement to the originating UE to warn the calling party that they are calling a scammer.