Specifications

Route Table Warning Tone
You can arrange for the system to sound a warning tone in the-user’s
handset or station speaker if ARS routes a call on any route other than
the least expensive, This tone indicates that the system has chosen a
more expensive line group. If a station user hears this tone, he or she
should hang up and try again later.
Routes
There are a total of 32 route tables that you can program for the
system. Each route table can contain up to 6 routes. Each of these
routes conveys the data listed as follows:
-the line group to route the call over,
-the access level of the route,
-the modify digit table,
-all costing information.
Program the six routes from the least costly routing method to the
most costly routing method. The costliness of the route is determined
by the line group over which the call is routed. ARS will always try to
select route 1 first, and then routes 2 through 6, when routing a call. If
a station, through its class of service assignment, does not have a route
access level high enough to allow it access the route selected by ARS,
dialing is denied; similarly, if a caller does not have access to the first
route level, the call will never try the other routes. If the route access
level is high enough, ARS will route the call based on the routing
information. If the system cannot route the call over the line group that
ARS first selects, ARS will try the next route of the route table. Once
again the route access level is tested. This process is repeated, up to a
maximum of 6 times. If the station has access to at least the first route,
but is unable to dial out (because all lines are busy), it will receive a
busy tone in the handset or speaker. The station can then camp-on the
route so it will ring when a line in the route table becomes available.
12 - 4 Automatic Route Selection