A voip network topology detection method based on gateway spatio-temporal correlation analysis

Abstract

The invention discloses a VoIP network topology detection method based on gateway time-space association analysis, used for overcoming the problem that fraud calls cannot be protected due to the facts that most of fraud calls are communicated through a VoIP network and a VoIP communication service adopting a private protocol cannot be effectively supervised in the prior art. The VoIP network topology detection method disclosed by the invention comprises the steps of: (1), detecting the VoIP call flow born by a gateway by utilizing the characteristic that the gateway is communicated by adopting a standard protocol; (2), obtaining the call routing of the call according to the time-space consistency characteristic of the flow of the VoIP call displayed on a passing path; and (3), describing a corresponding VoIP network topology relational graph. By means of the VoIP network topology detection method disclosed by the invention, the VoIP network topology is grasped; on one hand, guidance is provided for VoIP call detection based on a known protocol or plaintext; on the other hand, a VoIP call based on an unknown protocol or ciphertext is tracked, traced and located; and thus, VoIP fraud calls can be blocked and intercepted.

Description

technical field [0001] The invention relates to the technical field of converged network communication, in particular to a VoIP network topology detection method based on gateway time-space correlation analysis. Background technique [0002] At present, most fraudulent calls communicate through the VoIP network. Virtual operators use private protocols to communicate with VoIP services in their own networks, or encrypt the communication process, making it impossible to track the call process of VoIP fraudulent calls. [0003] VoIP is mainly constructed and operated by virtual operators, which rely on the Internet to establish VoIP operating platforms and carry out VoIP communication services. Since the domestic VoIP business has not yet been officially opened for operation, virtual operators cannot obtain legal operating status and can only carry out business implicitly. In order to avoid tracking and attack, many virtual operators use private protocols for communication of ...

AI Technical Summary

Problems solved by technology

[0005] The present invention overcomes the problem in the prior art that most fraudulent calls communicate through the VoIP network and cannot effectively supervise the VoIP communication services using private protocols, resulting in the inability to protect fraudulent calls, and provides a method with better monitoring and control VoIP network topology detection method based on gateway spatio-temporal correlation analysis based on capability

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