Class of Restriction (COR), Facility Restriction Level (FRL), Alternate Route Selection (ARS), and Automatic Alternate Routing (AAR) are complex but very important concepts for Avaya Aura Communication Manager administrators to understand. These features work together to control what kind of calls people are authorised to make and are used to ensure least cost routing of outbound calls to keep the phone bills down. The purpose of this white paper is to explain these flexible programming concepts in a simplified manner.
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