Question
What Is MOS Score In Voice Calls?
Applies To
- Voice API
Answer
The Mean Opinion Score (MOS) is one metric for measuring overall voice call quality. MOS score ranges between 1 to 5 of the perceived quality of a voice call (1-lowest and 5-highest).
With a call sample, our Vonage Support Engineers can look up the MOS Score for that specific call. This helps Vonage and the customer determine if a network quality problem may be affecting the quality of a call concerning symptoms such as garbled audio, missing audio, or one-way audio. A MOS Score of less than 4 may indicate network quality which may impact the call quality.
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