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Network voice conversation detecting flow generation method based on conversation model

A technology for network voice and call testing, applied in data exchange networks, telephone communications, interconnection devices, etc., can solve the problems of not being able to test VOIP performance at the same time, traffic characteristic errors, and VOIP application traffic inconsistencies.

Active Publication Date: 2007-10-10
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with this generation method is that the .wav file used can only be used for one-way VOIP test, that is, one-way voice transmission, but cannot test the voice interaction between two call parties, so it does not match the traffic of real VOIP applications
Using the audio file encoding method can neither test the VOIP performance of the two callers at the same time, and the audio file used does not match the actual two-way call audio, and there are errors in the traffic characteristics after using the voice activity detection technology

Method used

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  • Network voice conversation detecting flow generation method based on conversation model
  • Network voice conversation detecting flow generation method based on conversation model
  • Network voice conversation detecting flow generation method based on conversation model

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Embodiment Construction

[0036] The specific deployment environment used by the present invention is shown in FIG. 2 . Wherein, the VOIP test traffic generation host implements the VOIP call model through a software program, and completes the message sequence files of callers A and B according to the order of steps (1) to (6). The test terminal host A and the test terminal host B respectively store the message sequence files of callers A and B generated by the VOIP test flow generation host, and finally complete the VOIP through the TCP session and the UDP session according to the order of steps (7) to (10). Test traffic generation. In addition, in order to improve the accuracy of the test, a global positioning system can be installed on the test terminal host A and the test terminal host B to synchronize the clocks of the two hosts, so that the test start time is more consistent.

[0037] The specific program flow of the present invention is shown in FIG. 3 . The present invention is applicable to ...

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Abstract

The invention features the following: using a calling model to simulate the call interaction between both calling sides; calculating the state of call process at each time point; according to the sound activation detection technology, deciding if said state generates the traffic of network voice call; at the time point of generating the traffic, recording the offset between the time point and the initial time, the message sequence number and the size of the message corresponding to the code to form a traffic sequence; using the interaction between two test ends to determine the start time and the message actually-sending time, and finally generating the network voice call test traffic based on calling model.

Description

technical field [0001] The invention belongs to the technical field of the Internet, in particular to the technical field of VOIP test traffic generation. Background technique [0002] VOIP (Voice over IP), that is, voice calls through IP networks, has become one of the important applications of the Internet and is widely used by network operators and large enterprises. The performance test of VOIP is mainly by deploying test points at the access points of the deployment network, generating and transmitting VOIP test traffic at the test points, and evaluating the performance of VOIP on the network by analyzing indicators such as packet loss, delay, jitter, and audio distortion at the receiving end. performance in . The performance test of VOIP has two meanings: before the actual deployment of VOIP, through testing to determine the support ability of the deployment network for VOIP, so as to determine whether to deploy and the scale of deployment; after the actual deployment...

Claims

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Application Information

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IPC IPC(8): H04L12/26H04M7/00
Inventor 尹霞王之梁施新刚吉利
Owner TSINGHUA UNIV
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