Data for Max (Concurrent) calls for GVP (DN Group)

[mduran22]

I have been looking for a statistic or Informart report that will give the maximum concurrent calls for a DN Group/IVR ports. I want to report in any given interval (15 min, hour, or day, month, year) what the maximum number of ports (VTP Dns) in use were.

While realtime would be OK, I would really like to see this historically.

The only max statistic that I find is for max time.

Has anyone found metrics or reports useful for this?

Thanks,
Mike