pulsing key

pulsing key

[′pəls·iŋ ‚kē]

(communications)

Method of passing voice frequency pulses over the line under control of a key at the original office; used with E and M supervision on intertoll dialing.

System of signaling where numbered keys are depressed instead of using a dial.

McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.