Administrator's Guide
Routing outgoing calls
555-233-506254 Issue 5 October 2002
Instructions
To see how your switch handles a call to an IXC:
1. Type
display ars analysis 1 and press ENTER.
The AAR and ARS Digit Analysis Table screen starting with 1 appears.
This table shows 5 translations for IXC calls.
When you use x in the Dialed String field, the switch recognizes x as a wildcard.
The x represents any digit, 0 - 9. If I dial 1010, the next 3 digits will always match
the x wild cards in the dialed string.
Use the ARS digit analysis table shown above and follow the routing for an IXC
call to AT&T. 1010288 is the carrier access code for AT&T.
— A user dials 9 1010288 plus a public network number.
— The switch drops the ARS FAC (9 in our example), looks at the ARS Digit
Analysis Table for 1010, and analyzes the number.
— The switch matches 288 with xxx and sends the call over route pattern 5.
Restricted area codes and prefixes
Certain area code numbers are set aside in the North American Numbering Plan.
These numbers are 200, 300, 400, 500, 600, 700, 800, 877, 888, 900. You need to
specifically deny calls made to area codes 200 through 900 (except 800 and 888).
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 255 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.
ARS DIGIT ANALYSIS TABLE
Location: all Percent Full: 6
Dialed Total Route Call Node ANI
String Min Max Pattern Type Num Req
1____________________11_ 11 ___ 3 intl ___ n
1010xxx______________7 _ 7 ____ 5 op ___ n
1010xxx0_____________8 _ 8 ____ 5 op ___ n
1010xxx0_____________18_ 18 ___ 5 op ___ n
1010xxx00____________9 _ 9 ____ 5 op ___ n
1010xxx01____________17_ 25 ___ 3 iop ___ n
2____________________7 _ 7 ____ 2 hnpa ___ n
3____________________7 _ 7 ____ 2 hnpa ___ n
4____________________7 _ 7 ____ 2 hnpa ___ n