What settings affect enabling Enterprise CALs on Exchange?

Question

Microsoft Exchange

Maybe someone has come across or knows what parameters affect the inclusion of Enterprise CAL'ov on Exchange?
Exchange happily announces that it is necessary to purchase Enterprise CALs according to the number of Standard CALs.
ForeFront Antispam is not worth it.
Unified Messaging is not enabled.
Journaling seems to be disabled.
Personal Archiving is enabled on the server for multiple users.
There are several personal tags in retention policy tags.
There are multiple users with connected mobile devices.
There is a retention policy.
I looked at the Exchange Server 2013 licensing table (although I have 2010).
Found an interesting script Report Exchange Server 2010 SP1 Client Access Lice... who also counts... but he didn't understand the counting system in the script.
I sin on personal tags. They were created during installation.
And changing the device's ActiveSync policy... (on the "Devices" and "Applications for the device" tab - but no one will remember what was there by default).
I did not find adequate information on the Internet, what parameter can influence the calculation so much ... Now I'm trying to parse the script.

Answer 1

Precisely I demand Enterprise CAL:
Archival boxes.
Extended retention policies.
Legal hold.
There may be some other specific ActiveSync settings,