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appointment call

appointment call definition - telecom
An international long distance calling method that requires the caller to make an appointment for an international operator to seize an international trunk and place an international call at an appointed time. Appointment calling largely has been replaced by international direct distance dialing (IDDD). See also IDDD.

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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