Glossary

A

Auto Dial button

A programmable telephone button that lets you dial a series of digits simply by pressing that button. An Auto Dial button can be used to store a Centrex feature code or a telephone number so that it can be dialed with one touch. See also Equipment feature button and Programmable button.

Auxiliary equipment

Telecommunications equipment (other than MLS- and MLC-model telephones) that can be connected to the equipment controller. Auxiliary equipment includes industry-standard devices that can connect directly to the public telephone network (such as standard phones or fax machines) as well as devices that require the interface provided by the equipment controller (such as a loudspeaker paging system).

B

Backplane

The bottom and rear portion of the plastic housing that makes up a carrier. The backplane distributes power to the premises equipment, and has slots where the modules are installed.

Backup programming extension

A second extension from which you can program premises equipment, using the phone connected to extension jack 11 on your equipment controller. See also Primary programming extension.

Button-Down Mode

Asystem-wide setting that causes incoming calls on secondary lines to flash, but not ring. A user must press the line button down to pick up the call. This feature enables the equipment to imitate the way lines ring at extensions on key telephone systems like the 1A Key System.

C

Call coverage

An arrangement that lets a receptionist or a person at another extension answer a call when the dialed extension is busy or not answered. Call coverage may be provided centrally by a receptionist (using default equipment settings), locally by a person at another extension (requiring secondary line assignments), or using Centrex coverage services (such as call forwarding or voice mail). In addition, answering machines may be installed at key extensions to take messages when a person is not available to take calls.

Call record

A line of information on a call report that includes data fields such as call type, date, time, called number, and call duration. See also Call report.

Call report

A page of information that begins with a header and lists incoming and outgoing calls to and from your business on a line-by-line basis. See also Call record.

Call reporting

A feature that provides records of call activity. Call reporting is also referred to as Station Message Detail Recording (SMDR).

Call Viewing

An equipment feature that allows users to monitor call activity at system extensions by observing the lights on a one-touch Intercom Calling button. See also Intercom Calling button.

Calling restriction

A feature available from your Centrex system or from the equipment controller that lets you control telephone use at specific extensions.

Carrier

Molded plastic housing, made up of a backplane and cover, which holds equipment controller modules. Your configuration consists of at least the primary carrier and can be expanded to include the expansion carrier.

Centralized Telephone Programming

A method of telephone programming that lets you program individual extensions in the system from an MLS-34D or MLS-12D phone at extension jack 10 or extension jack 11. Centralized Telephone Programming is an alternative to Extension Programming.

Glossary GL-1

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AT&T II manual Glossary GL-1

II specifications

AT&T II, a pivotal case in the landscape of telecommunications regulation, emerged from the expansive antitrust actions against the American Telephone and Telegraph Company (AT&T). Following World War II, AT&T had established itself as a telecommunications behemoth, monopolizing the market. The ramifications of this dominance spurred a significant shift in regulatory measures, leading to the dissolution of the Bell System in 1984, which consisted of AT&T and its regional operating companies.

One key feature of AT&T II is its emphasis on promoting competition in the telecommunications sector. The court's decision aimed to dismantle the monopolistic practices that had stifled innovation and restricted consumer choice. By encouraging competition among various service providers, the ruling paved the way for an environment where new technologies could flourish.

The technologies that emerged post-AT&T II significantly transformed the telecommunications landscape. The introduction of new digital switching systems allowed for improved call quality and increased network efficiency. The evolution of fiber-optic technology also played a crucial role, enabling faster transmission speeds and greater data capacity. Moreover, innovative services, such as mobile telephony and broadband internet, proliferated as competition increased.

Another characteristic of AT&T II is its focus on accessibility and consumer protection. The ruling mandated that telecommunications services be available to a broader swath of the population, ensuring that underserved communities had access to essential communication services. This shift not only democratized access but also laid the groundwork for the modern internet revolution, fostering the growth of the digital economy.

The impact of AT&T II can also be seen in the regulatory frameworks that followed. The Federal Communications Commission (FCC) adopted policies aimed at enhancing market transparency and ensuring fair practices among competitors. These regulatory changes helped to create a more equitable playing field, allowing smaller companies to compete against established giants.

In summary, AT&T II marked a turning point in telecommunications history, characterized by a focus on competition, technological advancements, and consumer protection. The dissolution of AT&T's monopoly allowed for the rapid evolution of technology and services, ultimately benefiting consumers and fostering an environment ripe for innovation. This ruling not only redefined the telecommunications industry but also set a precedent for how markets are regulated in the United States.