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, this kind of information for monitoring of VoIP service level agreements (slas) it is very important to network administrators, this kind of monitoring method does not need how many amount of calculation, enough to realize real-time monitoring of the call, and it is based on the standard, the standard is the service quality evaluation in 2000 published a part of the European telecommunications standards institute of new standards,
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