41753169079241_page_170

41753169079241 | page 170 | https://thedailydialectics.com/pdfs/FIOA/41753169079241/41753169079241.pdf

IV, CIPHONY, CIFAX AND SPEECH PRIVACY — 1, a. Since communications are conveniently and rapidly carried out by means of telephony, it is natural for communica- tors who require secret communications to consider enciphering telephone conversations, The field involving making telephone communications…