audio response unit
Also found in: Acronyms.
audio response unit[′ȯd·ē·ō ri′späns ‚yü·nət]
A magnetic recording system that provides voice response to an inquiry made from a typewriter or telephone-type terminal connected to a computer by a data transmission line.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.