FRAUD SECURITY DETECTION SYSTEM AND METHOD

摘要

PURPOSE: A security and illegal call detection system and a method thereof are provided to add a security detection function and various illegal calls detection functions to a security detection technique of a VoIP(Voice over Internet Protocol) network. CONSTITUTION: An SDS(Security Detection System)(120) analyzes an RTP(Real Time Protocol) signal or an SIP(Session Initiation Protocol) signal transmitted from an interface unit. The SDS creates a CDR(Call Detail Record) for creating a call of the created SIP message by analyzing the RTP signal or the SIP signal. The SDS detects trespassing by analyzing the SIP message or the call. Next, an FDS(Fraud Detection System)(130) analyzes a combination of the SIP message transmitted from the SDS, the CDR, and the result came out from analysis the SIP message or the call. The FDS detects illegal calls. [Reference numerals] (AA,DD) Subscriber; (BB) VoIP network; (CC) Backbone S/W; (EE) Wired and wireless communication service provider; (GG) VoIP service provider