Problem

Possible Cause

Do This

If...

Then...

16. Other

1. Possible faulty

Unplug the cord from

The other phone

Old phone was faulty.

Problems

telephone.

the base of the prob-

works,

Call the AT&T Helpline*

with Phones

 

lem phone and plug it

 

for a replacement.

 

 

into a phone of the

The other phone

Go to Possible Cause 2.

 

 

same type that works.

 

 

 

does not work,

 

 

2. Defective telephone

Unplug the cord from

If the phone works,

Cord is faulty. Call the

 

cord.

the base of the phone

 

AT&T Helpline* for a

 

 

and the wall jack.

 

replacement.

 

 

Replace it with a cord

If the phone does not

See Problem 13,

 

 

that works.

 

 

 

work and is part of a

Possible Cause 3 on

 

 

 

combination

page C-7.

 

 

 

extension,

 

 

 

 

If the phone does not

Call the AT&T Helpline*.

 

 

 

work and is not part

 

 

 

 

of a combination

 

 

 

 

extension,

 

17. Other

1. System needs a

Use System Reset

The problem is not

Go to Possible Cause 2.

Problems

hardware reset.

(#728) to reset the

solved,

 

with the

 

system (see page

 

 

System

 

5-10).NOTE: This

 

 

 

 

procedure disconnects

 

 

 

 

all calls in progress.

 

 

 

2. Filters on

Place the filters just

The problem is not

Call the AT&T Helpline*.

 

expansion cable

below the base of the

solved,

 

 

need to be

backplanes (see page

 

 

 

repositioned.

2-9).

 

 

*In the U.S., help is available 24 hours a day at 1 800 628-2888. In Canada, call your local AT&T authorized dealer.

C-8Maintenance and Customer Support

Page 139
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AT&T II manual 8Maintenance and Customer Support

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.