Specifications

Programming Reference Guide
Printed in the USA Page 13 GCA3A39-877, Rev 5, Issue 9/01
Automatic Route Selection Programming
Step 1 – Program a Number Entry – The ARS feature interacts with the toll restriction
feature. You must enter a number on the toll restriction table and assign a route table to it
before the system can perform ARS on the dialed number. The system will route only those
numbers that you have both assigned a route number to and entered on the toll restriction
table.
Step 2 – Program the Route Table – There are 32 route tables. Each route table has six
routes available. In each of these routes you must program the following data:
• Assign the line group to route the call over.
• Assign the access level of the route.
• Assign the modify digit table (if used).
• Enter all costing information for SMDA/SMDR.
Step 3 – Program the Line Groups – Since ARS uses line groups to route calls, you should
group similar lines together into line groups. If the system cannot route the call over the line
group that ARS first selects, ARS will try the next route in the route table. Therefore, if you
are using ARS for least cost routing, you should assign the line group with the least
expensive lines to the first route, the next most expensive to the second, and so on.
Step 4 – Program the Route Access Level – Each of the six routes of a route table require a
route access level of 1 to 4. Each station, through its class of service, is also assigned a route
access level of 1 to 4. Before the system accepts a dialed number, ARS compares the two
route access levels. If the station route access level is greater than or equal to the route
access level assigned to the route, the station is allowed to access the route.
Step 5 – Program the Modify Digit Table – In some circumstances you may want the
system to add digits ahead of the number dialed by the user such as codes used by long
distance carriers. Use this table to enter those digits you wish to add. The modify digit table
also allows digits to be deleted from the number dialed.
Step 6 – Enable ARS – You must enable the ARS feature in System Programming.