Roaming Status Verification for Wireless Spoofed Call Detection
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Solution Overview
Problem
Existing communication networks lack a reliable method to detect and block spoofed phone numbers originating from off-network sources, as current solutions do not allow carriers to verify the legitimacy of calls from other carriers' phone numbers, leading to a high incidence of nuisance traffic events.
Innovation Solution
Implementing a system where wireless carriers share real-time roaming status information with each other or a third-party service, allowing carriers to verify the legitimacy of incoming calls by comparing the roaming status of the caller's device, with optional subscriber consent and privacy protections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If carriers share real-time roaming status information with each other or third-party services, then the ability to detect and block spoofed calls is improved, but the system complexity and privacy protection requirements increase
Solution Approach 1:
The patent introduces a third-party service as an intermediary that receives roaming status information from multiple carriers and provides verification services. This mediator simplifies the architecture by centralizing the verification logic and data storage, eliminating the need for direct peer-to-peer communication between all carrier systems.
Solution Approach 2:
The third-party service performs multiple functions: storing roaming status information, verifying caller legitimacy, blocking spoofed calls, and providing services to multiple carriers simultaneously. This multi-functional approach reduces overall system complexity by consolidating capabilities into a single universal platform.
2Reliability
If carriers verify the legitimacy of incoming calls by comparing roaming status, then spoofed call detection is improved, but the processing time and operational complexity increase
Solution Approach 1:
The system performs preliminary actions by pre-storing roaming status information in the third-party service before verification is needed. When a call arrives, the verification simply queries pre-existing data rather than performing complex real-time analysis, significantly reducing verification time.
Solution Approach 2:
The system creates simplified copies of verification data in the third-party service, storing essential roaming status information that can be quickly queried. This copying approach allows fast verification without requiring access to complex original network data.
3Object-affected harmful factors
If carriers block calls from off-network sources identified as invalid, then nuisance traffic reduction is improved, but the risk of false positives and subscriber impact increases
Solution Approach 1:
The system incorporates feedback mechanisms where carriers can report false positives and the third-party service can adjust its verification logic accordingly. This continuous feedback loop improves accuracy over time and reduces false positives while maintaining effective nuisance traffic blocking.
Data Source
AI summary
A processing system may determine a nuisance traffic event. The processing system may receive from a first entity a request to determine a status of a wireless user endpoint device associated with a wireless phone number, wherein the status comprises a determination as to a validity of a subject communication associated with the wireless phone number, perform a presence analysis of the wireless user endpoint device based on the wireless phone number, and respond to the request by providing an indication as to the validity of the subject communication associated with the wireless phone number back to the first entity.