This is a context-sensitive widget depending on whether the toggle in the dashboard’s upper right is set to Calls, Meetings, or Webinars. In Meetings or Webinars mode, it is called Endpoints and ISPs. In Calls mode, it is called Upstream and Downstream. In both cases, it shows quality and volume breakdowns of all streams or calls by endpoint and ISP.
The Endpoint tab shows endpoint devices used during meetings and phone calls for the selected time frame. When in Calls mode, it shows the average MOS for upstream and downstream call legs for each endpoint: