Chapter 8: Routing Outgoing Calls; World Class Routing - Avaya Communication Manager Administrator's Manual

Chapter 8: Routing Outgoing Calls

World Class Routing

Your system uses Automatic Alternate Routing (AAR) and Automatic Route Selection (ARS) to
direct outgoing calls.
AAR routes calls within your company over your own private network.
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ARS routes calls that go outside your company over public networks. ARS also routes
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calls to remote company locations if you do not have a private network.
Automatic routing begins when a user dials a feature access code (FAC) followed by the
number the user wants to call. Avaya Communication Manager analyzes the digits dialed,
selects the route for the call, deletes and inserts digits if necessary, and routes the call over the
trunks you specify in your routing tables. ARS and AAR can access the same trunk groups and
share the same route patterns and other routing information. ARS calls can be converted to
AAR calls and vice-versa.
The FAC for AAR is usually the digit 8. The FAC for ARS is usually the digit 9 in the US and 0
outside of the US. Your Avaya technician or business partner sets up AAR on your server
running Communication Manager and usually assigns the AAR FAC at the same time. You can
administer your own ARS FAC.
This section describes only ARS call routing.
World Class Routing
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