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Panasonic DBS576 Section 700 Technical Manual Page 316

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Appendix A. ARS and TRS Operation
ARS Level
An ARS level is also assigned to each of the 50 TRS classes. This originator's ARS value is used to determine
if the caller can proceed to use a particular priority route based on the associated ARS requirement in the Route
List (described later). The originator's ARS value may be 0-9 where the higher number allows more calling
access.
Queuing Point
The Route List provides up to 5 route possibilities for handling a call. Each route is considered in a sequential
order. When the Queuing Point is set to operate, the system will search all previously considered routes and
then the current route for an available trunk for the Queuing time period.
Dialing Analysis
When ARS is active, the dialed digits can be analyzed to determine if the call is toll restricted and what type of
routing the call will follow.
Leading Digits Table
The leading digits table considers the initial dialed digits in determining the restriction TRS level and ARS
routing.
Up to 10 digits can be considered. The digits may be any number 0, 1-9. In addition a wild card (*) may be used
to occupy any digit position. For instance *11 would consider the numbers 011, 111, 211, 311, 411, 511, 611,
711, 811, 911.
When considering the prefix string, the system considers the longest exact match first. For instance, the prefix
string 404 match would be followed before 40.
A wild card is always considered last. For instance if 911 were dialed and both 911 and *11 were prefix strings,
the 911 would be followed.
If additional digits need to be considered, a prefix ID can be used to cross-reference the Analyze Digits Table.
Once the system determines an exact match, the system will determine from this table the number of digits that
are expected to be dialed and the restriction TRS level.
If the TRS level allows the call to proceed, then the route type and its associated pattern number (entry index
number) are followed. There are three possible route types; the Route Table, the Route List Table and the Time
List Table.
Analyze Digits Table
If the Leading Digits Table contains a Prefix ID, the system considers all appearances of this Prefix ID to look
for an exact match. Up to 8 digits are considered (in addition to the prefix dial digits).
Once the system determines an exact match, the system determines from this table the number of digits
expected to be dialed and the restriction TRS level.
If the TRS level allows the call to proceed, then the route type and its associated pattern number (entry index
number) are followed. There are three possible route types; the Route Table, the Route List Table and the Time
List Table.
316
DBS 576 (USA), issued January 1999
Section 700 - Operation
576-20-700

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