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A method, system and monitoring media gateway for multimedia monitoring

A media gateway and monitoring system technology, applied in the field of communication, can solve the problems of wasting MGW media resources, high cost and time-consuming multimedia monitoring technology transformation and upgrading, and achieve the effect of convenient monitoring business, convenient management and maintenance, and shortening the transformation period

Active Publication Date: 2007-08-01
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0011] Embodiments of the present invention provide a method, system and media gateway for realizing multimedia monitoring, complete the conversion of media stream format, realize the monitoring of multimedia services, and solve the problem of high cost, time-consuming and waste of MGW media in the transformation and upgrading of existing multimedia monitoring technology resource problem

Method used

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  • A method, system and monitoring media gateway for multimedia monitoring
  • A method, system and monitoring media gateway for multimedia monitoring
  • A method, system and monitoring media gateway for multimedia monitoring

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specific Embodiment

[0049] Specific embodiment: as shown in FIG. 8 , it is an embodiment when the monitoring user and the multimedia conversation party access in the same MGW and the monitoring user initiates a call as the calling party. The definitions of the media stream path and the endpoint are the same as those described in FIG. 7 . Specific steps are as follows:

[0050] Step 801, the monitoring user (calling user) initiates an Invite session request message (session 1) to the softswitch, which carries the address of the called user in the message, and informs the softswitch of the receiving address (IP address and port) of its media flow by the SDP protocol ) and the requested media format;

[0051] Step 802, the softswitch sends an Add message to the media gateway MGW, and adds a termination point T1 at the media gateway MGW to access the media stream of the monitoring user (calling user);

[0052] Step 803, the soft switch sends an Add message to the media gateway MGW, and adds a termi...

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Abstract

The case in this invention for monitoring multimedia comprises exactly: A. the media gateway copies the monitored media flow to obtain and send the copied media flow to the monitoring media gateway; B. the latter converses the media format; and C. the monitoring media gateway transmits the conversed media to the monitor center. This invention reduces cost in technique upgrade, and saves MGW resource.

Description

technical field [0001] The invention relates to the communication field, in particular to a technology for realizing multimedia monitoring. Background technique [0002] With the maturity of softswitch technology, it has been widely used in mobile and fixed networks. At the same time, more and more multimedia services are carried out in the softswitch network, such as streaming media and video calls. With the increasing variety of multimedia services, there are many new demands and problems, one of which is lawful interception. Lawful interception refers to the law enforcement agency (LawEnforcement Agency, LEA) of the country. In order to maintain national security and combat various forms of crimes, etc., it is required to be able to obtain the required multimedia communication content through the network, and obtain its source and destination. information. As the global anti-terrorism struggle becomes increasingly fierce, governments of various countries pay more and m...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04L12/66H04L12/56H04L12/18H04L29/02
Inventor 张晓鹏
Owner HUAWEI TECH CO LTD
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