User`s guide

Setting up Meridian Mail security 6-29
Controlled Class of Service
Standard 1.0 System Administration Guide January 1998
Controlled Class of Service
Introduction
You can use Controlled Class of Service to lower calling
privileges of sets in unsecured areas and still raise their calling
privileges when required. This feature is particularly effective
in preventing internal abuse.
How it works
The Controlled Class of Service (CCOS) feature allows users of
SL-1 and Meridian digital sets designated as controllers, and
users of TTYs designated as background terminals, to
temporarily alter a designated station’s Class of Service
assignments (CLS). When a station is in the controlled mode, its
CLS is derived from the Controlled Class of Service restriction
level defined for each customer.
Users of SL-1 and Meridian digital sets designated as
controllers can place stations in a controlled mode one at a time
whereas background terminals can alter individual, group, or all
designated stations at one time.