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A device to transfer IP voice into TDM voice and corresponding snooping method

A technology of voice conversion, speech, applied in the direction of interconnecting devices, monitoring/monitoring/testing arrangements, electrical components, etc.

Active Publication Date: 2011-08-10
ZTE CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005]However, many legal interception centers currently in use only support TDM voice monitoring. With the development of technology, IP voice communication has become more and more common. And it is the trend of communication in the future. How to make the legal interception center of TDM can continue to realize the voice monitoring of IP mode has become more and more urgent
[0006] In summary, the existing communication monitoring technology obviously has inconvenience and defects in actual use, so it is necessary to improve

Method used

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  • A device to transfer IP voice into TDM voice and corresponding snooping method
  • A device to transfer IP voice into TDM voice and corresponding snooping method
  • A device to transfer IP voice into TDM voice and corresponding snooping method

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0033] The basic idea of ​​the present invention is: after receiving the IP voice signaling and IP voice packet sent by the monitored network element, convert the IP voice signaling and IP voice packet into corresponding TDM voice signaling and TDM voice flow After that, it is sent to the legal interception center to implement voice interception.

[0034] figure 1 It shows the device structure for converting IP voice into TDM voice provided by the present invention, and the conversion device 10 is used as a monitoring interface in a system including at least one monitored network element 20 and a...

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Abstract

The invention discloses a device to converse IP voice to TDM voice and is applied to a system at least comprising a monitoring network element and a legal monitoring center. The device consists of a signal processing module applied to receiving an IP voice signal sent by the monitoring network element, generating and sending a TDM voice signal according to the IP voice signal to the legal monitoring center, a media conversion module applied to carrying out media conversion processing according to the control of the signal processing module after receiving the IP voice packet sent by the monitoring network element and sending the TDM voice flow converted from the IP voice packet to the legal monitoring center. Correspondingly, the invention also provides a method for converting the IP voice to TDM voice for monitoring. Therefore, the invention ensures that the legal monitoring center can monitor TDM voice and IP voice at the same time, thereby expanding the monitoring scale of the legal monitoring center.

Description

technical field [0001] The invention relates to monitoring technology in the communication field, in particular to a device for converting IP voice into TDM voice and a monitoring method thereof. Background technique [0002] In recent years, with the development of international political forms, LIC (Lawful Information Center, legal interception center) has been paid more and more attention by the security departments of various countries, and has become a kind of communication to ensure national security and obtain necessary national security information. An effective means of network monitoring and information acquisition. According to the ETSI (European Telecommunications Standards Institute, European Telecommunications Standards Institute) monitoring model, between the LIC and the network element to be monitored, there is also a monitoring proxy device, which is called LIG (Lawful Information Gateway, legal interception gateway). [0003] In the early days, LIC mainly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M7/00H04M3/22H04L29/06
Inventor 许建昆
Owner ZTE CORP
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