Suspicious Call Handling via Outgoing Data Analysis
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Solution Overview
Problem
Existing systems for handling suspicious calls within communication networks struggle to identify and manage calls from new phone numbers, leading to potential fraud without imposing a burden on the called party.
Innovation Solution
A suspicious call handling system that includes an outgoing and incoming call information collecting server and session control servers, which collect and analyze call data to detect suspicious calls based on predefined conditions and execute pre-set actions when such calls are identified.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If incoming call restriction is implemented using incoming call history analysis, then existing fraud patterns can be detected, but suspicious calls from new phone numbers cannot be identified
Solution Approach 1:
The system performs preliminary analysis of outgoing call information before the suspicious call actually occurs. By collecting and analyzing outgoing call data in advance, establishing suspicious call patterns, and preparing restriction rules beforehand, the system can detect and block suspicious incoming calls from new numbers without relying on existing incoming call history.
2Measurement precision
If comprehensive call monitoring is implemented to detect all suspicious calls, then fraud detection accuracy improves, but burden on called parties increases
Solution Approach 1:
The system extracts only the necessary outgoing call information (such as calling patterns, frequency, and duration) from the complete call data set. By selecting and analyzing only the critical parameters needed for suspicious call detection rather than monitoring all call details, the system achieves accurate fraud detection while minimizing the burden on users.
3Ease of operation
If incoming call restriction settings are required on the called party side, then call control flexibility is maintained, but system complexity and user operation difficulty increase
Solution Approach 1:
The system introduces an intermediary server that automatically performs suspicious call detection and restriction. This intermediary component analyzes outgoing call information, identifies suspicious patterns, and executes call restriction actions without requiring the called party to manually configure settings. The intermediary server handles the complex analysis and decision-making, simplifying the user interface to just basic on/off controls.
Data Source
AI summary
A suspicious call handling system that detects and handles a suspicious call within a communication network includes an outgoing and incoming call information collecting server 10 and session control servers 20A to 20C. The outgoing and incoming call information collecting server 10 includes a storage unit 15 that stores a suspicious call condition, a collecting unit 11 that collects outgoing and incoming call information from each of the session control servers 20A to 20C within a communication network, and a searching unit 12 that searches for a phone call that matches the suspicious call condition from the outgoing and incoming call information and gives a notification of the phone call to the session control servers 20A to 20C accommodating a user to which the phone call is connected. The session control servers 20A to 20C include an action unit 24 that executes an action, which has been set in advance, in a case where it is detected that a call has been transmitted to a user who has received the notification from the outgoing and incoming call information collecting server 10.