HCS Administrator Privileges
Only administrators with the Full administrator privileges role can assign the HCS Administrator role or the Read-only HCS Administrator role to other users. Full administrators can't view nor administer HCS services.
To administer HCS functions, a user must be assigned one of these roles:
HCS Administrator – With this role, a user can perform or view any HCS function.
Read-only HCS Administrator – With this role, a user can only view HCS functions, but not perform any. No additions or deletions are permitted.
For a full explanation of roles, see these articles in the Cisco Webex Help Center: