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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Routing outgoing calls
180Understanding ARS analysis
8
You can also deny access to the 976 prefix, which is set aside in each area code for
pay-per call services, if you do not want to incur charges. You can block 976 or
any other prefix in all NPAs with a single entry in the digit analysis table. See
‘‘
Using wild cards’’ on page 181 for more information.
Instructions
Set the 200 area code apart from other area codes 201 through 209. We use the
digit analysis table 120 because it defines long distance calls that begin with 1 and
all area codes from 200 through 209.
To deny long distance calls to the 200 area code:
1. Type
change ars analysis 120 and press ENTER.
The AAR and ARS Digit Analysis Table
screen beginning with 120
appears.
The table in our example shows 2 translations for calls that begin with 120.
First, follow the routing for a long-distance call that begins with 120 and is
allowed. The 120 translation handles all dial strings 1-201 through 1-209, and
there are many matches.
— A user dials 9 120 plus 8 digits (the first of the 8 digits is not 0).
— The switch drops the ARS FAC (9 in our example), looks at the ARS Digit
Analysis Table for 120, and analyzes the number. The switch determines
that the call is a long-distance call and sends the call over route pattern 4.
Now let’s follow a call that begins with the restricted area code 200. Only one
string matches this translation.
— A user dials 9 1200 plus 7 digits.
— The switch drops the ARS FAC (9), and looks at the ARS Digit Analysis
Table for 1200. The switch determines that the call type is deny and the call
does not go through.
ARS DIGIT ANALYSIS TABLE
Location: all Percent Full: 6
Dialed Total Route Call Node ANI
String Min Max Pattern Type Num Req
120__________________11 11 4 fnpa ___ n
1200_________________11_ 11____ deny fnpa ___ n