Emergency Call Identity Validation for Spoofed Caller Filtering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Communication networks are vulnerable to malicious emergency calls from attackers using spoofed identities, leading to overloading of emergency services and preventing genuine callers from getting through.
Innovation Solution
Implementing an identity validation system that checks the validity of caller and device identities using an identity validation database, and sends invalid requests to a designated PSAP or discards them, thereby preventing overload on emergency services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If emergency calls are accepted without identity validation, then ease of operation is improved, but reliability deteriorates due to spoofed identities
Solution Approach 1:
The system performs identity validation before processing the emergency call. The validation database is queried in advance to check whether the IMSI and IMEI match before the call is routed, preventing spoofed identities from entering the emergency service system while allowing genuine callers to proceed through validation.
Solution Approach 2:
A validation database is introduced as an intermediary component between the emergency call request and the PSAP routing system. This database mediates the trust relationship by verifying the authenticity of caller identities before allowing access to emergency services, thus resolving the contradiction between ease of access and identification accuracy.
2Reliability
If identity validation is performed for every emergency call, then reliability is improved, but device complexity increases
Solution Approach 1:
The validation database serves multiple functions: it validates IMSI authenticity, verifies IMEI matching, and determines routing decisions. By consolidating these functions into a single database system, the patent reduces overall device complexity while maintaining high reliability through comprehensive validation.
Solution Approach 2:
The system automatically performs validation checks without requiring manual intervention. The validation database autonomously queries and returns results, and the calling device automatically uses these results to determine whether to proceed with the emergency call, reducing processing complexity while maintaining accurate identification.
3Reliability
If invalid identities are rejected, then reliability is improved, but loss of information increases
Solution Approach 1:
The system applies different handling based on the validation result. When identities are valid, location information is retrieved and used for routing. When identities are invalid, the system rejects the call but can still potentially retrieve location information through alternative means (such as cell tower data), thereby preserving information where possible while maintaining reliability through rejection of spoofed calls.
Data Source
AI summary
Embodiments are provided such as ones that involve receiving one or more requests for an emergency call, a request for an emergency call comprising information about one or more identities; checking a validity of one or more of the one or more identities; and sending, when one or more of the identities is invalid, the respective request for the emergency call with information that one or more of the identities is invalid.