Features
555-230-024
A-4 Issue 5 January 1998
Look Ahead Routing
Provides an efficient way to use trunking facilities. It all ows you to continue to try
to reroute an outgoing ISDN-PRI call that is not completing. When DEFINITY ECS
receives a cause value that indicates congestion, Look Ahead Routing tells the
system what to do next. For each routing preference, you can indicate if the next
routing-preference should be attempted or if the current routing-preference
should be attempted again.
Subnet Trunking
Modifies the number you dial so an AAR or ARS call can route over different trunk
groups that may terminate in switches with different dial plans. Subnet Trunking
inserts digits, deletes digits, pauses, and/or waits for dial tone in digit outpulsing,
as required, so calls route:
■To or through a remote switch
■Over Tie trunks to a private netw ork switch
■Over CO trunks to the serving CO
Subnet Trunking is required on calls routing to or through a remote switch,
regardless of the call’s destination.
Time of Day Routing
Provides the most economical routing of ARS and AAR calls. This r outing is
based on the time of day and day of the week that each call is made. Up t o 8
TOD routing plans may be administered, each scheduled to change up to 6
times a day for each day in the week.
This allows you to take advantage of lower calling rate s during specific times of
the day and week. In addition, companies with locations in diffe rent time zones
can use different locations that have lower rates at differen t times of the day or
week. This feature is also used to change patterns during the times an offi ce is
closed in order to reduce or eliminate unauthorized call s.