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call up[′kȯl ‚əp]
To retrieve data from computer memory, especially for display and user interaction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The initial voice contact between a facility and an aircraft, using the identification of the unit being called and the unit initiating the call.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved