voice-frequency telegraph system

voice-frequency telegraph system

[′vȯis ¦frē·kwən·sē ′tel·ə‚graf ‚sis·təm]
(communications)
Telegraph system permitting the use of many channels on a single circuit; a different audio frequency is used for each channel, being keyed in the conventional manner; the various audio frequencies at the receiving end are separated by suitable filter circuits and fed to their respective receiving circuits.