- tone keypad
- Телефония: кнопочный номеронабиратель
Универсальный англо-русский словарь. Академик.ру. 2011.
tone keypad
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Dual-tone multi-frequency signaling — One of the few production telephone DTMF keypads with all 16 keys, from an Autovon Telephone. The column of red keys produces the A, B, C, and D DTMF events. Dual tone multi frequency signaling (DTMF) is used for telecommunication signaling over… … Wikipedia
Telephone keypad — A telephone keypad is a keypad that appears on a “Touch Tone” telephone. It was standardised when the dual tone multi frequency (DTMF) system was introduced in the 1960s, and replaced the rotary dial.The contemporary keypad is laid out in a 3… … Wikipedia
Dual-tone multi-frequency — (DTMF) signaling is used for telephone signaling over the line in the voice frequency band to the call switching center. The version of DTMF used for telephone tone dialing is known by the trademarked term Touch Tone (canceled March 13, 1984),… … Wikipedia
Numeric keypad — A numeric keypad, numpad or tenkey for short, is the small, palm sized, seventeen key section of a computer keyboard, usually on the very far right. The numeric keypad features digits 0 to 9, addition (+), subtraction (−), multiplication (*) and… … Wikipedia
Voicemail — (also known as voice mail, voice message, or voice bank) is a computer based system that allows users and subscribers to exchange personal voice messages; to select and deliver voice information; and to process transactions relating to… … Wikipedia
Voice broadcasting — is a mass communication technique, begun in the 1990s, that broadcasts telephone messages to hundreds or thousands of call recipients at once. This technology has both commercial and community applications. Voice broadcast users can contact… … Wikipedia
Vertical service code — A vertical service code or VSC is a special code dialed prior to (or instead of) a telephone number that engages some type of special telephone service. Typically preceded with an asterisk, or * (star), key on the touch tone keypad and… … Wikipedia
Pulse dialing — Middle 20th century rotary dial telephone Pulse dialing, dial pulse, or loop disconnect dialing, also called rotary or decadic dialling in the United Kingdom (because up to 10 pulses are sent), is pulsing in which a direct current pulse train is… … Wikipedia
Goertzel algorithm — The Goertzel algorithm is a digital signal processing (DSP) technique for identifying frequency components of a signal, published by Dr. Gerald Goertzel in 1958. While the general Fast Fourier transform (FFT) algorithm computes evenly across the… … Wikipedia
Blue box (phreaking) — An early phreaking tool, the blue box is an electronic device that simulates a telephone operator s dialing console. It functions by replicating the tones used to switch long distance calls and using them to route the user s own call, bypassing… … Wikipedia
Model 500 telephone — Western Electric model 500 set made in 1951 By 1975, the Model 500 layout … Wikipedia
