Connecting and Testing Telephones

1 To connect a phone, plug the mod- ular telephone mounting cord into a modular wall jack or directly into a 206 module extension jack. (If you are con- necting a standard phone and its mounting cord is loose, use an AT&T D2R mounting cord instead.)

To install two phones (or other devices) on a single extension jack, see Figure 2-2on page 2-5.

2 Test the telephone for proper op- eration. To test the power and lights on

aMLS- or MLC-model phone, press and hold the [ # ] button for five seconds. Before releasing the [ # ] button, lift the handset. All lights should light, the ringer should sound, and (on the MLS-12D or MLS-34D phones only) a test pattern should appear on the display. (If not, call the Helpline.) Replace the handset; the phone is now in normal operating mode.

Connecting Doorphones and Hotline Phones

Hotline

Phone

Doorphone

1 Hotline Phone: A) To install a Hotline phone, insert the modular telephone cord into the last available extension jack on the last installed 206 module. B) Route the cord as for other line and extension cords. (See Chapter 5 for instructions on programming a Hotline phone extension.)

2 Doorphone: A) To install an AT&T doorphone, insert the modular plug into the last available extension jack on the last installed 206 module. B) Route the cord as for other line and extension cords. (See Chapter 5 for instructions on programming a doorphone extension.)

NOTE: If you add a module to your premises equipment, you should move the Hotline phone and doorphone extensions. See “Adding New Modules” on page 2-14.

2-12Installing the Hardware

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AT&T II manual Connecting and Testing Telephones, Connecting Doorphones and Hotline Phones, 12Installing the Hardware
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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.
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