Call Insights

How to read audio quality stats?
For example: If 99% value for certain audio quality stats are in red while the rest are in green, It means that most of the call, except 1%, had good au...
Why are Ring start time and Answer time displayed as 0s while the call has all the other stats?
This happens in case of auto answer. 
Why is audio level not displayed for few call uuids?
Audio level is captured at Plivo SDK end. So for call legs with PSTN number audio level wouldn’t be displayed**. ** This would mean that suspected issues ...