DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506 Issue 1
April 2000
Features and technical reference
1140Alternate facility restriction levels
20
Alternate facility restriction levels
Alternate Facility Restriction Levels (AFRL) allows a se cond set of facility
restriction levels within a route pattern or for lines or trunks. Attendants and
system administrators can activate the alternate FRLs and change users’ access to
lines and trunks. For example, a company can use AFRL to disable long-distance
calling at night to prevent unauthorized staff from making long-distance calls.
AFRL alters the route patterns for originating phones, originating trunks, and
dialed authorization codes. If AFRL is active, Travelling Class Mark (TCM) is
also set to a new FRL value and the TCM informat ion recorded in the billing data
(CDR) is the AFRL value, not the original TCM.
!CAUTION:
AFRL impacts Automatic Alternate Routing (AAR) and Automatic Route
Selection (ARS) call routing because it may change routing preferences.
Using AFRL on tandem and tie-trunk applications affects entire networks.
Calls that are part of a cross-country private network and may have to be
routed further may be blocked.
Detailed description
You can administer an ALT-FRL button to any attendant console or any station to
activate and deactivate the AFRL. Pressing the ALT-FRL button may affect the status
of other buttons.
When AFRL is active, the user may notice a change in calling privileges. Consider
notifying users of the changes, and prepare your telecommunications department
to handle inquiries.
Authorization codes
Authorization codes prevent unauthorized access to various f acilitie s. When a user
dials an authorization code, your system checks the code. If it is not valid, the call
is intercepted. If the code is valid, the system determines an associated COR and
FRL. If AFRL is activated, the AFRL level is used.
For example, a user whose FRL is 1 attempts a long-distance call. AFRL is active
and maps to AFRL 3. The desired trunk has an FRL of 7, and the call is blocked.
In the example below, an Authorization Code set to1234567 has a COR of 3 with
an FRL 5, which is still not high enough to access the desired trunk. However,
AFRL is active and FRL 5 maps to FRL 7. The call is allowed.