Why the world’s leading brands are prioritizing in-country number testing?
Spearline
OCTOBER 5, 2021
Here at Spearline, we have conducted millions of test calls worldwide, resulting in billions of data points. The test calls are recorded, and the audio quality is measured using the industry-standard Perceptual Evaluation of Speech Quality (ITU P.862 862 – PESQ) method. 1 Financial Training Services.
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