Finding And Fixing VoIP Problems: The R-Factor
Finding And Fixing VoIP Problems
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How can network architects get an accurate reading of the voice quality of service?
Passively measuring each call has been made possible with the ITU G.708 standard E model with extensions to recognize the role of human behavior in assessing call quality. It has become a popular standard for voice over IP quality measurements. The R-factor is a dimensionless metric based on E-Model, which can be calculated, based on observed traffic flow for every phone call on the network. The R-factor, with human behavior factored in, can be correlated to a subjective Mean Opinion Score (MOS), giving the network administrator an accurate, unbiased, independent accounting of the quality of the calls as they would be assessed by human listeners.Get the full story here. --------
