In the CQD, you could find the total counts of the calls. It also shows call and meeting quality, at an org-wide level, for Microsoft Teams.
If you want to view your call histories that older than 30 days, you need to contact the Office 365 admins in your organization and run either of the 2 reports below:
- The first one is Usage reports. The admins can go to Teams admin center -> Analytics & reports -> Usage reports and run the reports for the last 90 days.
- The second one is Office 365 eDiscovery, which returns items from chats, meetings, and calls in Microsoft Teams. Then you can document the time spent on calls.
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