Avaya Communication Manager Administrator's Manual page 1385

AAR
AAR routes calls over private networks. When a user dials the AAR feature access code (normally 8 in
North America) and phone number, AAR selects the least expensive route for the call in the private
network and performs any digit conversion. If the first-choice route is not available, another route is
chosen automatically.
AAR routes private-network numbers, public-network numbers, service codes, an international number,
operator access code, or an operator-assisted dialing number. AAR routes calls route as far as possible
over the private network, and then accesses the public network. This saves long-distance charges and
allows you to use your private network as much as possible.
ARS
ARS routes calls over the public network. When a user dials the ARS feature access code (normally 9 in
the US and 0 outside of the US) and phone number, ARS selects the least expensive route for the call
when there are one or more long-distance carriers or services.
ARS, like AAR, routes private-network numbers, public-network numbers, service codes, an
international number, operator access code, or an operator-assisted dialing number, and also routes to
Inter-exchange carriers (IXC). These are your long-distance providers.
You can route ARS calls to a variety of types of public-network and private-network trunk groups
including CO, FX, ISDN, Tie, and WATS. See
AAR and ARS digit analysis default
translations
Your switch contains built-in AAR and ARS Digit Analysis Default Translations. These default
translations are used for call processing whether or not AAR or ARS is enabled on your switch.
Any 7-digit dialed string that begins with any number 2 through 9 is processed as an AAR call.
Exceptions are listed in the ARS Digit Analysis Default Translations Table. The translations shown on
the ARS digit analysis default translations
each of the 8 possible ARS Digit Analysis Tables.
NOTE:
For service outside of North America, these defaults should be deleted. You can delete the
defaults by entering change ARS analysis 0 . Then use spaces to blank out all of the
Dialed String entries.
Administrator's Guide for Avaya Communication Manager
November 2003
Managing Trunks on page 349 for more information.
table are displayed in sorted order (including additions) on
Feature Reference
Automatic routing — general
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