Can anyone assist with methods to measure the quality of a VoIP service? I am interested in measuring total delay for voice in each direction or the total turnaround .. also how to quantify other impairments eg distortion, noise, audio dropouts/gaps .. I have a customer whose voice quality is very poor, and a delay which seems to approach 1 sec. I am thinking of recommending they change to a 2Talk solution (which they are already trialing), but it would be good to have some hard data.
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