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Sounds commonly used to indicate that a button has been pressed are a click, a ring or a beep. Interior of a readymade loudspeaker, showing a piezoelectric-disk-beeper (With 3 electrodes ... including 1 feedback-electrode ( the central, small electrode joined with red wire in this photo), and an oscillator to self-drive the buzzer.
In the United Kingdom, a warbling signal sounding rather like an alarm siren is played at steadily increasing volume to a telephone left off-hook and unused on telephone lines provided by the BT Group and many PABX extensions. It is sometimes referred to as a howler. In some cases it is composed of the DTMF tones * and # played alternately.
This is an accepted version of this page This is the latest accepted revision, reviewed on 23 January 2025. Type of clock A traditional wind-up (key-wound), mechanical spring-powered alarm clock An alarm clock or alarm is a clock that is designed to alert an individual or group of people at a specified time. The primary function of these clocks is to awaken people from their night's sleep or ...
On hook telephone handset. The term on-hook has the following meanings: . The condition that exists when a telephone or other user instrument is not in use, i.e., when idle waiting for a call.
Razer Forge TV (discontinued) Xiaomi TV, [3] Xiaomi Mi Box, Mi Box S, [4] Mi TV Stick, [5] Xiaomi TV Stick 4K, [6] and Xiaomi TV Box S (2nd Gen). [7] Nokia Streaming Box, [8] and Nokia Media Streamer (Europe) [9] Walmart Onn Android TV Box [10] Realme 4K Smart Google TV Stick [11] and 1080p Smart Android TV Stick (India) [12] Akari SMARTBOX ...
an alarm clock that sounds an alarm at a pre-set time, often used to wake a person up or remind them of an event. a fire alarm which is used to give occupants of a building early warning of a potential fire and give them time to evacuate. warning devices on a vehicle that sound when it is moving in an unexpected direction, such as reversing,
A confused Spike O'Dell, host of the station's morning show at the time, was heard on-air wondering "what that beeping was all about". [104] [105] On May 19, 2010, NOAA Weather Radio and CSEPP tone alert radios in the Hermiston, Oregon area, near the Umatilla Chemical Depot, were activated with an EAS alert shortly after 5 p.m.
[19]: 1 While beep lines were not initially illegal in the United States, [16] [b] they were frowned upon by the telephone companies because of their potential to overload a main trunk line in a central office, [4] preventing normal telephone service for a given area and potentially leading to outages for critical lines such as hospitals and ...