Different reports interpret the data in different ways, depending on what they show.
See attached for an example of how the Total Usage and Endpoint Utilization reports will express the conference data differently depending on the infrastructure used and how the participants have connected.
Another example is when you see a different number of meetings for the same customer for a specific time period, depending on which report you look at.
For example, if we compare these three MCU reports:
Virtual Meetingroom Utilization:
Only includes static conferences, not ad-hoc or scheduled.
MCU Conference Participation Report:
Does not include conferences with less than 2 participants.
Does not care about conference type or number of participants, so the number of meetings is higher than the other 2 reports.