There are three levels in the settings hierarchy for portal.rpxfax.com.
1. Server settings - Administration > Manage > Settings
2. Department settings - Administration > Manage > Departments > Edit/Create department
3. User settings - Administration > Manage > Users > Edit/Create user
After adjusting server settings, all newly added departments and users will inherit those default settings.
An admin can adjust those default settings on a department and user level.
Modifying department settings will override the server settings and apply those settings to all department members.
Modifying user settings will override the server and department settings and apply only to that individual user.