VoIP (voice over internet protocol) control system and VoIP control method

Abstract

The invention provides a VoIP (voice over internet protocol) control system which comprises an acquisition unit, an identification unit, a storage unit, a search unit and a decision-making unit, wherein the acquisition unit is used for carrying out acquisition on data; the identification unit is used for carrying out identification on data, and when a situation that a VoIP signaling stream exists in the data is identified, extracting signaling information in the signaling stream, and sending the signaling information to other DPI (dots per inch) acquisitors in a DPI acquisitor cluster; the storage unit is used for receiving signaling information sent by the other DPI acquisitors in the DPI acquisitor cluster, and storing the signaling information; the search unit is used for searching signaling information corresponding to a media stream from the stored signaling information when a situation that the media stream exists in the data is identified, if the signaling information is searched, identifying the protocol type of the media stream into a VoIP protocol type the same as that of the information; and the decision-making unit is used for controlling the VoIP protocol according to a control strategy corresponding to the stored VoIP protocol type. Accordingly, the invention also provides a VoIP control method. Through the technical scheme of the invention, under the condition that the signaling stream is separated from the media stream, the VoIP protocol type can be correctly identified, and a corresponding control strategy can be taken for the VoIP protocol type.

Description

technical field [0001] The present invention relates to the technical field of Internet telephony, in particular to a VoIP control system and a VoIP control method. Background technique [0002] Voice revenue is the main source of income for telecom operators, and voice service is the most reliable telecom service. Due to the development of broadband Internet and VoIP technology, many virtual operators, especially some illegal ones, adopt private VoIP services that are cheap and have no service guarantee, which affects the normal operation order of the telecommunications market. In order to protect their own interests, telecom operators need to technically monitor illegal VoIP and crack down on the operation of illegal VoIP services. [0003] Among them, some protocols in the VoIP protocol, such as: SIP (Session Initiation Protocol, Session Initiation Protocol) / H323, the signaling stream and the media stream are separated, the signaling stream has characteristics, and the m...

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Problems solved by technology

[0003] Among them, some protocols in the VoIP protocol, such as: SIP (Session Initiation Protocol, Session Initiation Protocol) / H323, the signaling stream and the media stream are separated, the signaling stream has characteristics, and the media stream is written in the signaling stream channel; the media stream is transmitted using the common RTP (Real-time Transport Protocol, real-time transport protocol) voice stream format, without any characteristics, and VoIP control cannot be achieved simply through the media stream

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