manual telephone system

manual telephone system

[′man·yə·wəl ′tel·ə‚fōn ‚sis·təm]
(communications)
A telephone system in which connections between customers are ordinarily established manually by telephone operators in accordance with orders given verbally by calling parties.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
Mentioned in ?