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Model 500 Telephone
The Western Electric model 500 telephone series was the standard domestic desk telephone set issued by the Bell System in North America from 1950 through the 1984 Bell System divestiture. The successor to the model 302 telephone, the model 500's modular construction compared to previous types simplified manufacture and repair and facilitated a large number of variants with added features. Dual-tone multi-frequency signaling, Touch-tone service was introduced to residential customers in 1963 with the #Model 1500, model 1500 telephone, which had a push-button pad for the ten digits. The #Model 2500, model 2500 telephone, introduced in 1968, added the Asterisk#Telephony, * (star) and Number sign#Computing, # (square, pound) keys. The model 500 telephone series and its derivatives were very popular and common among North American businesses and households throughout the latter half of the 20th century. The development of new simpler telephone set designs, the advent of mobile phones, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Model 302 Telephone
The model 302 telephone is a desk set telephone that was manufactured in the United States by Western Electric from 1937 until 1955, and by Northern Electric in Canada until the late 1950s, until well after the introduction of the 500-type telephone in 1949. The sets were routinely refurbished into the 1960s. It was one of the most widely used American combined telephone sets to include the ringer and network circuitry in the same telephone housing. Design and production The design of a new desk telephone for the Bell System began approximately in 1930, only a short time after the introduction of a line of handset telephones, the 102 and 202-type desk telephones. The existing Western Electric telephones comprised a desk set that only served to secure the handset and also the dial for customer-initiated calling, but required an external subscriber set (''subset'', or ''desk set box'' or ringer box), containing the ringer and network circuitry. This box was typically mounted on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Offshoring
Offshoring is the relocation of a business process from one country to another—typically an operational process, such as manufacturing, or supporting processes, such as accounting. Usually this refers to a company business, although state governments may also employ offshoring. More recently, technical and administrative services have been offshored. Offshoring neither implies nor precludes involving a different company to be responsible for a business process. Therefore, offshoring should not be confused with outsourcing which does imply one company relying on another. In practice, the concepts can be intertwined, i.e offshore outsourcing, and can be individually or jointly, partially or completely reversed, as described by terms such as reshoring, inshoring, and insourcing. In-house offshoring is when the offshored work is done by means of an internal (captive) delivery model. Imported services from subsidiaries or other closely related suppliers are included, whereas in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AT&T Information Systems
AT&T Information Systems (ATTIS), originally known as American Bell, was the fully separate subsidiary of American Telephone & Telegraph Company (AT&T) which focused on computer technology ventures and telephone sales, and other unregulated business. It was one of the three core units of AT&T formed after the breakup of the Bell System. As a twenty-five percent owner, AT&T Information Systems utilized production of Olivetti to manufacture their AT&T PC 6300 series of computers. Along with the 3B series computers and the AT&T UNIX PC the PC 6300 series of computers represented a multi-faceted strategy of competing with IBM, who was the leading computer manufacturer of the time. History After the breakup of the Bell System, which became effective in January 1984, AT&T Corporation—the world's largest company—was allowed to enter the computer market. In 1979 and 1980, the Federal Communications Commission (FCC) conducted Computer Inquiry I and II, which restricted Western Electr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Design Line Telephone
Design Line is a brand name that AT&T has used for several of its specialty telephone designs to fulfill the demand by customers for more variety in telephone models. Pre-divestiture models In the early 1970s, well before the Bell System divestiture, customers in increasing numbers chose to install and use telephones not manufactured by Western Electric, AT&T's wholly owned subsidiary. To fulfill the demand, the Bell System decided to offer a series of specialty telephones that could be purchased or leased. The series was called the Design Line telephones. The name did not refer to one particular telephone type; rather Design Line was the collective name given to all the specialty phones, including the Candlestick phone, Country Junction phone, Mickey Mouse phone and others. The phones were among the few that could be purchased in the early 1970s. Western Electric broke tradition, by obtaining housings for some of the sets from other manufacturers or local contractors in Indianapo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
6P4C
A modular connector is a type of electrical connector for cords and cables of electronic devices and appliances, such as in computer networking, telecommunication equipment, and audio headsets. Modular connectors were originally developed for use on specific Bell System telephone sets in the 1960s, and similar types found use for simple interconnection of customer-provided telephone subscriber premises equipment to the telephone network. The Federal Communications Commission (FCC) mandated in 1976 an interface registration system, in which they became known as registered jacks. The convenience of prior existence for designers and ease of use led to a proliferation of modular connectors for many other applications. Many applications that originally used bulkier, more expensive connectors have converted to modular connectors. Probably the best-known applications of modular connectors are for telephone and Ethernet. Accordingly, various electronic interface specifications exist f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modular Connector
A modular connector is a type of electrical connector for cords and cables of electronic devices and appliances, such as in computer networking, telecommunication equipment, and audio headsets. Modular connectors were originally developed for use on specific Bell System telephone sets in the 1960s, and similar types found use for simple interconnection of customer-provided telephone subscriber premises equipment to the telephone network. The Federal Communications Commission (FCC) mandated in 1976 an interface registration system, in which they became known as registered jacks. The convenience of prior existence for designers and ease of use led to a proliferation of modular connectors for many other applications. Many applications that originally used bulkier, more expensive connectors have converted to modular connectors. Probably the best-known applications of modular connectors are for telephone and Ethernet. Accordingly, various electronic interface specifications exis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Push-button Telephone
A push-button telephone is a telephone that has buttons or keys for dialing a telephone number, in contrast to a rotary dial used in earlier telephones. Western Electric experimented as early as 1941 with methods of using mechanically activated reeds to produce two tones for each of the ten digits and by the late 1940s such technology was field-tested in a Number Five Crossbar Switching System, No. 5 Crossbar switching system in Pennsylvania.Push. Click. Touch. – History of the Button – 1963: Pushbutton Telephone – December 11, 2006 The technology at that time proved unreliable and it was not until after the invention of the transistor that push-button technology became practical. The Bell System selected Findlay, Ohio as the first city in the U.S. for marketing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bell Operating Company
The Bell System was a system of telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company (AT&T), that dominated the telephone services industry in North America for over 100 years from its creation in 1877 until its antitrust breakup in 1983. The system of companies was often colloquially called Ma Bell (as in "Mother Bell"), as it held a vertical monopoly over telecommunication products and services in most areas of the United States and Canada. At the time of the breakup of the Bell System in the early 1980s, it had assets of $150 billion (equivalent to $ billion in ) and employed over one million people. Beginning in the 1910s, American antitrust regulators had been observing and accusing the Bell System of abusing its monopoly power, and had brought legal action multiple times over the decades. In 1974 the Antitrust Division of the U.S. Department of Justice brought a lawsuit against Bell claiming violations of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Model 5302 Telephone
The model 5302 telephone was a look-alike product to the 500-type telephone that was introduced as a stopgap by Western Electric in 1955 to meet the increasing post-World War II demand for a modernized telephone. It reused existing component supplies from the older model 302 that the model 502 replaced. The 302 had been issued since 1937, but starting in 1950, units were replaced with the new 500-series sets, without having served their useful component life. The 5300 and 5400 series of telephones consisted of the 300-series and the 400-series models converted to approach the appearance and performance of the model 500. This was accomplished with a new housing, new number ring and dial plate, and a ringer volume control that could be adjusted by users. The model numbering for these sets was derived from the converted 300 or 400 series units by prefixing those model numbers with the digit 5. In addition to the model 5302, the series also consisted of the specialty models 5304, 53 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
