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1835, "apparatus for signaling by musical notes" (devised by Sudré in 1828), from French téléphone (c.1830), from télé- "far" (see tele-) + phone "sound" (see fame (n.)). Also used of other apparatus early 19c., including "instrument similar to a foghorn for signaling from ship to ship" (1844). The electrical communication tool was first described in modern form by P.Reis (1861); developed by Bell, and so called by him from 1876.
1878, from telephone (n.). Related: Telephoned; telephoning.
instrument designed for simultaneous two-way voice communication and the technological system through which it is employed. It is a central part of modern telecommunication.