Figure 4-1 shows how Central Call Coverage works.

Ext. 1004

Ext. 1005

Ext. 1006

Ext. 1007

Primary

Receptionist's Phone

Ext. 1000

Incoming Call

rings immediately

Ext. 1001

Ext. 1002

Ext. 1003

Covered Call rings after about 20 seconds

Figure 4-1. Central Call Coverage

Setup for Central Call Coverage is simple, because the equipment controller automatically assigns all lines to the receptionist’s phone (the phone connected to extension jack 10). The Centrex line connected to line jack 01 on the equipment controller is assigned as the primary line; all other lines are assigned as secondary lines. This arrangement lets a receptionist cover all of the lines in your system.

Table 4-1shows the equipment programming settings that are needed for Central Call Coverage. The first column shows the name of the programming procedure or function. System Programming procedures, which determine how the equipment controller handles lines and extensions, include the procedure number in parentheses—for example, “Line Assignment (#301).” Telephone Programming procedures, which affect the operation of individual extensions, show only the name of the procedure. (See Chapter 5 for more information on programming.) The remaining columns show the required and optional settings for this call coverage setup.

4-4Customizing Your System

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AT&T II manual Shows how Central Call Coverage works

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.