Copy Settings (#399) copies Automatic Extension Privacy and Abbreviated Ringing settings as well as Fax Machine extensions, equipment dialing restrictions, and group assignments from one extension to another; it does not copy line assignments, line ringing settings, or button programming—see page 5-11for a list of the specific programmed settings that are copied. To save time, you can program one extension for each type of phone connected to the equipment controller, and then use Copy Settings to program other phones of the same type. For example, you can program one MLS-12D phone and then copy its settings to other extensions that have MLS-12D phones.

Programming Overlays

System Programming requires a programming overlay placed over the phone’s dial pad.

During System Programming, the normal functions of several buttons on the display phone at extension jack 10 or 11 change. For example, the left [ Intercom ] button becomes [ System Program ], the button used to enter System Programming mode. To identify these buttons while programming, place the appropriate programming overlay (provided with the premises equipment) on the dial pad of the phone at extension jack 10 or 11. Figures 5-1and 5-2show the programming overlays for the MLS-34D and MLS-12D phones, and explain what the special buttons do while programming.

Telephone Programming Procedures

Two methods can be used to program telephones:

Centralized Telephone Programming from extension jack 10 or 11

Extension Programming from an MLS- or MLC-model phone at the extension being programmed.

During Centralized Telephone Programming, the display phone at extension jack 10 or 11 takes on the characteristics of the telephone being programmed, including any System Programming and the lines assigned to the phone. Make sure the programming phone is as large as the largest phone connected to the equipment controller, because an MLS-12D phone cannot program an MLS-34D phone. When you enter Centralized Telephone Programming, green lights appear next to any line buttons that are already assigned so that you do not attempt to program over them.

Programming Telephone Buttons

Telephone buttons without lines assigned to them are programmable buttons. Programmable buttons that are used to store outside telephone numbers, Centrex extension numbers, or Centrex feature codes are called Auto Dial buttons, because pressing the button automatically dials the number stored on the button.

5-4Programming Reference

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AT&T II manual Telephone Programming Procedures, Programming Overlays, Programming Telephone Buttons

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.