Method for filtering abnormal call based on multiple lists

Abstract

The invention discloses a method for filtering an abnormal call based on multiple lists. The abnormal call can be timely interrupted and connection is quickly established for a legal user, namely a normal call by matched filtering based on multiple lists such as a white list, a grey list and a black list. In addition, the state processing mechanism of the grey list is adopted to realize automaticupdating of the state in the grey list. Meanwhile, multiple list-based matched filtering and the detection process are concurrently executed, so the abnormal call can be filtered on line, abnormalityis timely discovered and the connection is terminated to prevent a called user from being disturbed.

Description

technical field [0001] The invention belongs to the technical field of communication network security, and more specifically relates to a method for filtering abnormal calls in a telecommunication network and a VoIP communication network. Through this filtering method, users can avoid malicious harassment and unnecessary mental harm. Background technique [0002] At present, the telecommunications business is developing rapidly, and the new technological revolution represented by the Internet is profoundly changing the concept and system of traditional telecommunications. The telecommunications industry is facing a century-old change. The open converged network based on softswitch technology and based on optical network and packet transmission technology, that is, the next generation network, has become a research hotspot. Softswitch technology is an optimal solution to realize Voice Over IP in the next generation network. As a voice communication network, VoIP needs the s...

AI Technical Summary

Problems solved by technology

[0004] At present, the strategy for solving abnormal calls is: record the other party’s phone number and include it in the incoming restricted list, or use the malicious call tracking function provided by the telecommunications bureau to record the attack record to determine the identity of the attacker, but these behaviors They all happen after an abnormal call, and the receiver may need to feed back corresponding information to know that the call is an abnormal call. In this way, the call ID may be manually added to the restricted list after the illegal call has occurred for a long time. Only after the list is set Realize the system's automatic processing of abnormal calls, which is relatively inefficient in filtering abnormal calls

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