Reports - End-user status attribute is misleading for suspended or deleted end-users

I have been building reports trying to discover where phantom calls are logged - these would be calls in which suspended users leave voicemail (but apparently the voicemail isn't recorded).

When I look at a report for calls in 2021 for example, I see results for several end-users who are currently suspended but at the time of the call, were active.

It contradicts what I have been told by Zendesk support agents - in that a suspended user is prompted to leave voicemail, however no voicemail is recorded.

How can this be a Voicemail call from a Suspended end-user?

From Metrics and attributes for Zendesk Talk – Zendesk help:

End-user status - The status in Zendesk Support of the end user associated with the call.

Is the intent of the report to show the End-user current status or the status at the time of the call?

I almost suspect the answer is “neither” because I have experimented with suspending and unsuspending users and reloading the report, and the status shown in the report does not change.