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PBX / Centrex Compatibility
122 ◆ Features DSX Feature Handbook
PBX / Centrex Compatibility
Description
PBX/Centrex Access Codes
PBX Access Codes are the digits PBX extension users must dial to obtain outside lines. When the DSX is
installed behind a PBX, users must dial these codes before the digits for their outside call. For example, if
the PBX access code is 98, and the DSX user wants to reach 203-926-5400, they must dial 98-1-203-926-
5400. Normally, DSX Toll Restriction and Forced Account Codes are applied to the digits dialed after the
PBX Access Code. This is because any call dialed without the PBX access code is an internal PBX call, and
usually won’t require the restrictions imposed by Forced Account Codes and Toll Restriction.
Operation
Operation is automatic when the feature is enabled in programming.
The DSX provides unique features when connected to a PBX or Centrex.