With ARS, the system checks the digits in the called number against an ARS Digit Analysis Table to determine how to handle the dialed digits. The system also uses Class of Restriction (COR) and Facility Restriction Level (FRL) to determine the calling privileges.

• Dialed string. Lists the first digits in the dialed string. When a user makes an outgoing call, the system analyzes the digits, and looks for a match in the table. The system then uses the information in the matching row to determine how to route the call.

  For example, if a caller places a call to 1-303-233-1000, the system matches the dialed digits with the digits in the first column of the table. In this example, the dialed string matches the digit 1. Then the system matches the length of the entire dialed string (11 digits) to the minimum (Min) and the maximum (Max) length columns. In this example, the 11-digit call that started with 1 follows route pattern 30 as an fnpa call.

  The first dialed digit for an external call is often an access code. If the digit 9 is defined as the ARS access code, the system drops this digit and uses the ARS Analysis Table to analyze the remaining digits.

• Route Pattern. Indicates the route that handles the calls that match the dial string.

• Call Type. Describes what kind of call is made with this dial string. Call Type helps the system determine how to handle the dialed string.

• Node Num. States the number of the destination node in a private network, if you use node number routing or Distributed Communication System (DCS). Valid values are 1 to 999, or blank.

For more information, see Administering Avaya Aura® Communication Manager.