Try adjusting the time range for your "Number of Concurrent Calls" metric:
1. Click the time range dropdown at the top of your dashboard.
2. Select a broader range (e.g., "Last 30 days" or "Custom Range" covering the period you expect data).
3. Click
Apply to refresh the insights.
If the metric still shows "No data available," double-check that your filters are not too restrictive.
According to the documentation, a narrow or mismatched time range is a common cause for this issue ([Vapi Boards Quickstart](
https://docs.vapi.ai/observability/boards-quickstart)).
Source:
- [Vapi Boards Quickstart](
https://docs.vapi.ai/observability/boards-quickstart)