Abstract
Since the pandemic began, institutions have been implementing work/study-from-home. They mostly use VoIP applications to do online meetings. This study is trying to discover what metrics are the most preferred to measure the quality of VoIP applications by reviewing 38 relevant studies. We found that the most preferred Quality of Experience (QoE) metrics are Mean Opinion Score (MOS), Perceptual Evaluation of Speech Quality (PESQ), and Peak Signal-to-noise Ratio (PSNR). While the most preferred Quality of Service (QoS) metrics are jitter, bandwidth, packet loss, and throughput. We also found that there are not many new studies done on evaluating SIP quality.
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