Implementation method and system for intercepting network fraud calls based on IMS (IP Multimedia Subsystem)

Abstract

The invention discloses an IMS (IP Multimedia Subsystem) network-based fraud call interception implementation method, which comprises the following steps: at a fraud call interception platform side, receiving a first call triggered by an IMS network, storing call parameters carried by the first call, wherein the call parameters comprise a calling number, a called number and a call identifier; and when an interception request from an external system is received, querying the stored call parameters according to at least one or any combination of a calling number and a called number carried by the request, and if the stored call parameters are queried, sending a disconnection signaling to the IMS network so as to enable the first call to be disconnected. According to the invention, fraud phone monitoring and interception can be carried out on the call based on the IMS network, communication can be cut off in real time, and new business services can be provided for users.

Description

technical field [0001] The invention relates to the communication field, in particular to an implementation method for intercepting fraudulent calls based on the IMS network. Background technique [0002] In recent years, fraud through communication means has shown an increasing trend, which has had a negative impact on social stability. With the upgrading of communication technology, the communication system is upgraded from the original circuit switching technology to the IMS (IP Multimedia System) technology based on IP network. For example, the currently used fixed telephone communication network and 4G / 5G mobile communication network system It is realized through the IMS network and technology; under the current communication technology background, the proportion of fraudulent calls through the IMS network is also increasing, and it is imperative to control and intercept fraudulent calls initiated by the IMS network. [0003] At present, the interception technology for...

AI Technical Summary

Problems solved by technology

[0009] The real-time interception technology of fraudulent calls using the traditional intelligent network method is relatively mature, and the technical support of the intelligent network is also relatively complete in terms of security and disaster recovery of the entire switching network. Call the number to activate the intelligent network subscription function. However, in the traditional switching network, the subscription attribute of the number is unique and cannot be signed repeatedly. Many services (such as virtual network services, prepaid services, etc.) Intelligent network signing is implemented, so this method has mutual exclusion between intelligent network signing and other services, reducing the scope of users

[0010] With the development of communication technology, the switching network has been upgraded from traditional circuit switching to IP-based IMS switching network. With the popularization of 4G communication technology and the promotion of 5G, mobile phone and fixed phone users based on IMS network In this context, the real-time interception function of fraudulent calls based on the traditional circuit domain can no longer support the majority of IMS network users, and it is necessary to support the real-time call interception function under the IMS network

Images