The Last Number Redial feature allows the user to have the system redial the last external number dialed, when either the last number redial code is dialed or the Redial key is pressed. An external number is defined as one that makes use of the system's automatic route selection (ARS) feature. Since these features use ARS to select routes, the digit strings used in network calls are treated as external digit strings for the last number redial feature.
This feature is not subject to conditions, programming, or operation instructions.