|
Beep Line
In telephony, beep lines were improvised conference calls hosted over busy signals, loop-around test tones, or certain automated informational service numbers, active in the United States from the mid-1950s to the mid-1980s. These lines allowed callers to communicate with up to dozens of other people simultaneously, the conversations often punctuated by the busy tone "beep" and accompanying intercept message. Such lines were a consequence of the electromechanical nature of switching equipment within the central offices of the public switched telephone network in widespread use at the time. Some journalists have perceived beep lines as an early form of social media. History For most of the 20th century, calls were usually placed on the public switched telephone network via electromechanical switching equipment. When a caller dialed a number that was busy or permanently unavailable, the central office of their carrier would shunt the incoming call to a circuit on which the busy s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telephony
Telephony ( ) is the field of technology involving the development, application, and deployment of telecommunication services for the purpose of electronic transmission of voice, fax, or data, between distant parties. The history of telephony is intimately linked to the invention and development of the telephone. Telephony is commonly referred to as the construction or operation of telephones and telephonic systems and as a system of telecommunications in which telephonic equipment is employed in the transmission of speech or other sound between points, with or without the use of wires. The term is also used frequently to refer to computer hardware, software, and computer network systems, that perform functions traditionally performed by telephone equipment. In this context the technology is specifically referred to as Internet telephony, or voice over Internet Protocol (VoIP). Overview The first telephones were connected directly in pairs. Each user had a separate telephone wired ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toll-free Telephone Number
A toll-free telephone number or freephone number is a telephone number that is billed for all arriving calls. For the calling party, a call to a toll-free number from a landline is free of charge. A toll-free number is identified by a dialing prefix similar to an area code. The specific service access varies by country. History The features of toll-free services have evolved as telephone networks have evolved from electro-mechanical call switching to computerized stored program controlled networks. Originally, a call billed to the called party had to be placed through a telephone company operator as a collect call, often long-distance. The operator had to secure acceptance of the charges at the remote number, or even transfer that decision to a long-distance operator, before manually completing the call. Some large businesses and government offices received large numbers of collect calls, which proved time-consuming for operators and the callers. Manual toll-free systems Pri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chat Line
Chat line is a services allowing for people to Communication, communicate with one another by telephone call. However, more recent chat lines are similar to Citizens band radio, CB radio in which a number of people both listen and speak together. See also * Instant messaging * Online chat * Party line (telephony) * Synchronous conferencing * Videotelephony * References Calling features Local loop Smartphones Technology in society {{telephony-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Party Line (telephony)
A party line (multiparty line, shared service line, party wire) is a local loop telephone circuit that is shared by multiple telephone service subscribers. Party line systems were widely used to provide telephone service, starting with the first commercial switchboards in 1878. A majority of Bell System subscribers in the mid-20th century in the United States and Canada were served by party lines, which had a discount over individual service. During wartime shortages, these were often the only available lines. British users similarly benefited from the party line discount. Farmers in rural Australia and South Africa used party lines, where a single line spanned miles from the nearest town to one property and on to the next. History Telephone companies offered party lines beginning in the late 1800s, although subscribers in all but the most rural areas may have had the option to upgrade to individual line service at an additional monthly charge. The service was common in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Resistor
A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses. High-power resistors that can dissipate many watts of electrical power as heat may be used as part of motor controls, in power distribution systems, or as test loads for generators. Fixed resistors have resistances that only change slightly with temperature, time or operating voltage. Variable resistors can be used to adjust circuit elements (such as a volume control or a lamp dimmer), or as sensing devices for heat, light, humidity, force, or chemical activity. Resistors are common elements of electrical networks and electronic circuits and are ubiquitous in electronic equipment. Practical resistors as discrete components can be composed of various compounds and forms. R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trunking
In telecommunications, trunking is a technology for providing network access to multiple clients simultaneously by sharing a set of circuits, carriers, channels, or frequencies, instead of providing individual circuits or channels for each client. This is reminiscent to the structure of a tree with one trunk and many branches. Trunking in telecommunication originated in telegraphy, and later in telephone systems where a trunk line is a communications channel between telephone exchanges. Other applications include the trunked radio systems commonly used by police agencies. In the form of link aggregation and VLAN tagging, trunking has been applied in computer networking. Telecommunications A trunk line is a circuit connecting telephone switchboards (or other switching equipment), as distinguished from local loop circuit which extends from telephone exchange switching equipment to individual telephones or information origination/termination equipment. Trunk lines are use ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time (magazine)
''Time'' (stylized in all caps) is an American news magazine based in New York City. For nearly a century, it was published Weekly newspaper, weekly, but starting in March 2020 it transitioned to every other week. It was first published in New York City on March 3, 1923, and for many years it was run by its influential co-founder, Henry Luce. A European edition (''Time Europe'', formerly known as ''Time Atlantic'') is published in London and also covers the Middle East, Africa, and, since 2003, Latin America. An Asian edition (''Time Asia'') is based in Hong Kong. The South Pacific edition, which covers Australia, New Zealand, and the Pacific Islands, is based in Sydney. Since 2018, ''Time'' has been published by Time USA, LLC, owned by Marc Benioff, who acquired it from Meredith Corporation. History ''Time'' has been based in New York City since its first issue published on March 3, 1923, by Briton Hadden and Henry Luce. It was the first weekly news magazine in the United St ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Verizon New England
Verizon New England, Inc. is a Bell Operating Company that serves most of Massachusetts and all of Rhode Island. It was formerly New England Telephone and Telegraph Company, more commonly known as New England Telephone, which for seven decades served most of the New England area of the United States as a part of the original AT&T. New England Telephone's coverage area included Maine, New Hampshire, and Vermont as well as Massachusetts and Rhode Island, but Verizon sold off service in the northern three states, which as of 2020 are served by Consolidated Communications. After the Bell System divestiture, New England Telephone merged with New York Telephone to form NYNEX in 1984. NYNEX was acquired by Bell Atlantic in 1997. In 2000, Bell Atlantic bought GTE and changed its own name to Verizon. New England Telephone was then renamed Verizon New England. History New England Telephone & Telegraph Company (N.E.T.&T. Co.) was incorporated in the State of New York in 1883 by con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Weekly Newspaper
A weekly newspaper is a general-news or Current affairs (news format), current affairs publication that is issued once or twice a week in a wide variety broadsheet, magazine, and electronic publishing, digital formats. Similarly, a biweekly newspaper is published once every two weeks. Weekly newspapers tend to have smaller circulations than daily newspapers, and often cover smaller territories, such as one or more smaller towns, a rural county, or a few neighborhoods in a large city. Frequently, weeklies cover local news and engage in community journalism. Most weekly newspapers follow a similar format as daily newspapers (i.e., news, sports, obituary, obituaries, etc.). However, the primary focus is on news within a coverage area. The publication dates of weekly newspapers in North America vary, but often they come out in the middle of the week (Wednesday or Thursday). However, in the United Kingdom where they come out on Sundays, the weeklies which are called ''Sunday newspape ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Disc Jockey
A disc jockey, more commonly abbreviated as DJ, is a person who plays recorded music for an audience. Types of DJs include Radio personality, radio DJs (who host programs on music radio stations), club DJs (who work at a nightclub or music festival), mobile DJs (who are hired to work at public and private events such as weddings, parties, or festivals), and turntablism, turntablists (who use record players, usually turntables, to manipulate sounds on phonograph records). Originally, the "disc" in "disc jockey" referred to shellac and later vinyl records, but nowadays DJ is used as an all-encompassing term to also describe persons who DJ mix, mix music from other recording media such as compact cassette, cassettes, CDs or digital audio files on a CDJ, controller, or even a laptop. DJs may adopt the title "DJ" in front of their real names, adopted pseudonyms, or stage names. DJs commonly use audio equipment that can play at least two sources of recorded music simultaneously. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phone-in
In broadcasting, a phone-in or call-in is a programme format in which viewers or listeners are invited to air their live comments by telephone, usually in respect of a specific topic selected for discussion on the day of the broadcast. On radio (especially talk radio), it is common for an entire programme to be dedicated to a phone-in session. On television, phone-in's are often part of a wider discussion programme: a current example in the UK is the "Jeremy Vine" TV show. The concept dates to the early radio era: a December 1924 BBC 5NG Nottingham phone-in programme is described in a 1925 Radio Times article: "listeners ... enjoyed the novelty of hearing their own voices taking part". A prior attempted phone-in to a BBC 2LO London programme "led to such a rush on the telephones that the Post Office had to intervene". Speech based Talk Radio UK was launched in 1995, with much of its programming featuring phone-ins. It also introduced the notion of the shock jock to the UK, with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_(14569629440).jpg "Click for more on -> Party Line (telephony)")
