of, relating to, or happening by means of a telephone system.
carrying sound to a distance by artificial means.

Origin of telephonic

First recorded in 1825–35; tele-1 + -phone + -ic
Related formstel·e·phon·i·cal·ly, adverbnon·tel·e·phon·ic, adjectivenon·tel·e·phon·i·cal·ly, adverbpre·tel·e·phon·ic, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for telephonic

Historical Examples of telephonic

Word Origin and History for telephonic

1834, in reference to a system of signaling by musical sounds, from tele- + phonic.

Online Etymology Dictionary, © 2010 Douglas Harper