A fully-restricted line has all of the attributes of an semi-restricted line. In addition calls directed to a fully-restricted line from the business group attendant, as well as calls originated at a fully-restricted line and directed to the business group attendant, are routed to error treatment (reorder tone or special intercept announcement).
A fully-restricted line does not have indirect access of any sort to or from lines outside the business group; this should include multiply-forwarded calls.
The administrator can assign a fully-restricted line to a DN on an originating basis on a terminating basis, or both.
Parent topic: Line Restrictions