Many of our calls show yellow caution signs that say that the call quality is only based on some of the data. Normally these are the calls that we experience some type of voice issues with. What is happening with those calls?
Also, there seems to be a significant lag at times that does not show up in voice metrics at all.
Hard to tell from just the screenshot itself, but in my investigations, I would typically start looking at the details for the specific calls, and potentially, work to correlate that information with the Call Quality Dashboard (for example, perhaps the issues are isolated to a particular site/location, and CQD could help us pinpoint that). Also, I would ensure that your managed locations have properly configured the firewall rules necessary for communication to the O365 environment.