AT&T MERLIN LEGEND Release 4.0 Feature Reference page 72

Feature Reference
Route Selection within the Table
Once the table is selected, ARS checks the subpatterns within the table (if
applicable) and the restrictions on the routes.
Figure 2. ARS Route Selection within a Table
Subpatterns
Depending on the time of the call, one of two subpatterns (arrays of up to six
different routes) is chosen for each table [except the Special Numbers (N11)
and Dial 0 tables]. The time of day is compared to the start and stop times of
Subpatterns A and B. (The start time for Subpattern A is the stop time for
Subpattern B.) If the time of the call is between the Subpattern B start time and
stop time, then Subpattern B is selected; otherwise Subpattern A is selected. If
both Subpatterns have 00:00 start times, Subpattern A is selected. See Figure 3
below.
72
Automatic Route Selection
START
Selected Table
If appropriate for
the selected table,
select Subpattern
A or B depending
on time of day.
Select first route
where:
telephone's
•
FRL is > route's
FRL and route
is not busy
for PRI, call
•
type matches
route type
(data, voice,
or both)
Route available?
Route Call
NO Return
fast busy
YES