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System for monitoring VOIP voice quality based on SIP protocol and detection method thereof

A SIP protocol and voice quality technology, applied in transmission systems, digital transmission systems, telephone communications, etc., can solve problems such as low flexibility, difficult adjustment, high cost, etc., and achieve the effect of enhanced scalability and high measurement accuracy

Inactive Publication Date: 2009-05-20
CHONGQING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: design a kind of VOIP (Internet Telephony) voice quality monitoring system based on SIP (Session Initiation Protocol), and detection method, solve in existing hardware equipment, cost height and flexibility are low, face It is difficult to make timely adjustments to special detection indicators in different environments and special evaluation models in various environments. To address the above problems, we propose corresponding solutions

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  • System for monitoring VOIP voice quality based on SIP protocol and detection method thereof
  • System for monitoring VOIP voice quality based on SIP protocol and detection method thereof
  • System for monitoring VOIP voice quality based on SIP protocol and detection method thereof

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Embodiment Construction

[0023] The implementation of the present invention will be described in detail below with reference to the accompanying drawings and specific examples.

[0024] Such as figure 1 Shown is a schematic diagram of the system structure of the VOIP voice quality monitoring system based on the SIP protocol. The monitoring system is mainly composed of the following four modules:

[0025] ①Voice data acquisition module, this module is mainly responsible for collecting the copy of the data message captured by the network card and obtained by the kernel space of the operating system. First, compare the captured data packet with the keyword "sip" for judging SIP. The received data packet is a SIP packet, otherwise it is discarded, and the SIP packet is passed to the session tracking module at the same time.

[0026] ②Session tracking module, this module is responsible for tracking the session establishment process, capturing the media information of the voice communication to be establis...

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Abstract

The invention discloses an SIP protocol-based VOIP voice quality monitoring system and a detection method thereof and relates to a computer network. For overcoming the drawbacks of high cost and inflexibility of voice quality monitoring equipment in the prior art, a system and a method for monitoring the VOIP voice quality are designed. The method comprises the following steps: a voice data acquisition module extracts an SIP data packet and transmits the SIP data packet to a session tracking module for call state tracking; a voice data processing module carries out monitoring and maintenance analysis on a call established successfully; and finally, a voice quality estimation module calls an e-Model to calculate a voice information quality index MOS according to indexes such as network data delay, packet loss rate and jitter. The system can carry out accurate analysis of voice session and provide effective quality index and is low in cost. The system and the method can be widely used for monitoring, analysis and control of network flow, QoS guarantee and in other fields related to flow engineering.

Description

technical field [0001] The invention relates to computer network technology, in particular to the technical fields of computer network flow monitoring, network service quality and network performance analysis. Background technique [0002] VoIP can easily provide value-added services such as ring tones, voice mail, etc. The further popularization of IP networks has enabled VoIP to develop rapidly around the world. With the rapid growth of my country's IP telephone network scale and traffic, the important problem is: VoIP is realized based on IP network, but the special "best effort" of IP network brings delay, jitter, packet loss, etc. A series of problems make QoS not guaranteed at all. [0003] Voice quality is very important to network services. Poor voice quality may lead to customer loss, affect the promotion of VoIP, and restrict its development. To ensure the voice quality of VoIP, it must be monitored. The effectiveness of voice quality monitoring depends on the ev...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04M7/00H04L12/56
Inventor 徐川唐红赵国锋张毅
Owner CHONGQING UNIV OF POSTS & TELECOMM
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