DISA

DISA definition - telecom
  1. Direct Inward System Access. A PBX feature that allows remote access to the system, generally on a toll-free basis.The caller dials the telephone number associated with a special DISA trunk. After the PBX answers the call, the caller can gain access to connected resources by entering the proper authorization codes. DISA is useful to authorized users requiring remote access to e-mail servers, voice processors, computer systems, and outgoing toll trunks. However, DISA may open the system and all connected resources to hackers, who often target them in order to gain unauthorized access to the same resources.
  2. Data Interchange Standards Association. A not-for-profit organization created for the development of cross-industry business interchange standards. DISA serves as the Secretariat for the ANSI Standards Committee (ASC) X12 and their X12 Electronic Data Interchange (EDI) and Extensible Markup Language (XML) standards development processes. See also ANSI, EDI, standards, and XML.

Webster's New World Telecom Dictionary Copyright © 2008 by Wiley Publishing, Inc., Indianapolis, Indiana.
Used by arrangement with John Wiley & Sons, Inc.

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