IP voice calls quality cannot monitor with the usual way, the traditional network monitor focus is isolated transmission flow statistics, rather than the inherent quality and intelligibility or the end user's feeling, the new intelligent call quality monitor using the evaluation of speech quality E of the international telecommunication union - Model, it can accurately packet loss distribution and end user feel Model is set up, the packet loss distribution and codec and delay, to give a single score, a traditional way to another call quality measurement, such as feeling voice quality tests, not particularly considering packet loss or memory, they need a lot of computing resources, the need to generate signals and comparing the original signal and the received signal,
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