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Tape recorders, like answering machines, are installed between the telephone wall socket and the telephone itself. Telephone calls flow through the recorder. If the recorder is on, the call is recorded on magnetic tape, and can be played back on compatible devices. Cassette tape recorders are used for small-scale use.
A telephone keypad is a keypad installed on a push-button telephone or similar telecommunication device for dialing a telephone number. It was standardized when the dual-tone multi-frequency signaling (DTMF) system was developed in the Bell System in the United States in the 1960s – this replaced rotary dialing , that had been developed for ...
Wiretapping, also known as wire tapping or telephone tapping, is the monitoring of telephone and Internet-based conversations by a third party, often by covert means.The wire tap received its name because, historically, the monitoring connection was an actual electrical tap on an analog telephone or telegraph line.
A secure telephone is a telephone that provides voice security in the form of end-to-end encryption for the telephone call, and in some cases also the mutual authentication of the call parties, protecting them against a man-in-the-middle attack. Concerns about massive growth of telephone tapping incidents led to growing demand for secure ...
A covert listening device, more commonly known as a bug or a wire, is usually a combination of a miniature radio transmitter with a microphone. The use of bugs, called bugging, or wiretapping is a common technique in surveillance , espionage and police investigations.
The Communications Assistance for Law Enforcement Act (CALEA), also known as the "Digital Telephony Act," is a United States wiretapping law passed in 1994, during the presidency of Bill Clinton (Pub. L. No. 103-414, 108 Stat. 4279, codified at 47 USC 1001–1010).
Watch: Prince Harry arrives at High Court for phone-tapping and privacy case 01:52 , Andy Gregory Harry and Meghan Frogmore eviction ‘just the start’ of King Charles’ plans to slim down monarchy
Multi-tap (multi-press) [1] is a ... Some portable telecommunications devices ... Telephone keypad letter mapping; References This page was last edited on 22 ...