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Routing Outgoing Calls
World Class Routing
Administrator’s Guide for Avaya Communication Manager 213
November 2003
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Routing Outgoing Calls
World Class Routing
Your system uses Automatic Alternate Routing ( AAR ) and Automatic Route Selection ( ARS ) to direct
outgoing calls.
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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 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.
Managing calling privileges
Each time you set up a phone, you use the Station form to assign a COR. You can create a different COR
for different groups of users. For example, you may want executives in your company to have different
calling privileges than receptionists.
When you set up a COR, you specify a facility restriction level (FRL) on the Class of Restriction form.
The FRL determines the calling privileges of the user. Facility restriction levels are ranked from 0–7,
where 7 has the highest level of privileges.
You also assign an FRL to each route pattern preference in the Route Pattern form. When a user makes a
call, the system checks the user’s COR. The call is allowed if the caller’s FRL is higher than or equal to
the route pattern preference’s FRL.