telephony

(communications) (a) The science and technology of telecommunications. (b) The science and technology of converting voice and other audio into electrical or digital signals, which can be transmitted by wire, fiber optics or radio and reconverted to audible sound upon receipt.
Telephony (“far voice” in Greek) has entered the world of personal computers with inexpensive after market add-on boards that combine the functions of modems, sound boards, speakerphones and voice mail systems.

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