Routing Outgoing Calls
Modifying Call Routing
Administrator’s Guide for Avaya Communication Manager
227
November 2003
To add a new prefix, follow the same directions, except use a shorter dial string (such as list ars
route-chosen 2223333, where
222
is the old prefix) and a dial type of hnpa.
Tip:
If you change an existing area code for a network with multiple locations, be sure to
change the
Number Plan Area Code
field on the Locations screen. See
Setting up
Multiple Locations
on page 221.
Using ARS to restrict outgoing calls
ARS allows you to block outgoing calls to specific dialed strings. For example, you can restrict users
from making international calls to countries where you do not do business, or in the U.S. you can restrict
access to 900 and 976 pay-per-call numbers.
SECURITY ALERT:
!
To prevent toll fraud, deny calls to countries where you do not do business. The following
countries are currently concerns for fraudulent calling.
Instructions
To prevent callers from placing calls to Colombia (57):
1
Type change ars analysis 01157
and press
ENTER
.
Enter 011 (international access) and the country code (57). The ARS Digit Analysis Table screen
appears.
2
Move to a blank
Dialed String
field.
If the dialed string is already defined in your system, the cursor appears in the appropriate
Dialed
String
field. Skip to
Step 5
to deny calls to this dialed string.
3
Enter 01157 in the
Dialed String
field.
4
Enter 10 in the
Total Min
and
23
in
Total Max
fields.
5
Enter deny
(denied) in the
Route Pattern
field.
6
Enter intl in the
Call Type
field.
7
Press
ENTER
to save your changes.
country
code
country code
Colombia
57
Pakistan
92
Ivory Coast
225
Peru
51
Mali
23
Senegal
221
Nigeria
234
Yemen
967