Troubleshooting

The charts on pages C-3 to C-8 describe various problems that can occur, possible causes for each problem, and procedures you can follow to try to solve the problem yourself.

Problem

Possible Cause

Do This

If...

Then...

1. All Phones

1. Equipment

Make sure the

LEDs light, and the

The problem is

Dead: No

controller not

controller’s power

trouble is gone,

corrected.

Dial Tone or

receiving power.

cord is plugged

LEDs light, but the

Call the AT&T Helpline*.

Lights

 

securely into the wall

 

 

outlet. Also make sure

trouble remains,

 

 

 

all circuit breakers

LEDs do not light,

Go to Possible Cause 2.

 

 

(plastic pop-up tabs

 

 

shown in Figure 1-3on

LEDs are flashing,

Call the AT&T Helpline*.

 

 

page 1-7) are in the

 

 

“ON” position (pushed

 

 

 

 

down). To see circuit

 

 

 

 

breakers, remove the

 

 

 

 

controller’s cover.

 

 

 

2. The power outlet

Test the outlet by

The appliance does

The outlet is faulty.

 

may be faulty.

plugging in an ap-

not work,

Plug the controller into

 

 

pliance, like a lamp or

 

a different outlet, check

 

 

radio.

 

fuse box, or call an

 

 

 

 

electrician.

 

 

 

The appliance

Call the AT&T Helpline*.

 

 

 

works,

 

2. Multiple

1. Equipment

Make sure that the

LEDs light,

Problem is solved.

Phones Dead:

modules not

modules are paired so

The problem

Go to Possible Cause 2.

No Dial Tone

installed in correct

that a 206 module is

or Lights

order—LEDs on

installed before each

remains,

 

 

several modules

400 module. If the

 

 

 

are out.

modules are not in the

 

 

 

 

right order, reinstall

 

 

 

 

them (see page 2-9.)

 

 

 

2. Several modules

If several LEDs are

LEDs light,

Problem is solved.

 

are out.

out, try reseating the

The problem

Go to Possible Cause 4.

 

 

leftmost module of the

 

 

ones with the lights

remains,

 

 

 

out (see page 2-9).

 

 

 

3. One module is out.

Check the LEDs on

LEDs light.

Problem is solved.

 

 

the front of the

The problem

Call the AT&T Helpline*.

 

 

modules. If a single

 

 

green LED is out, try

remains,

 

 

 

reseating the module

 

 

 

 

in the carrier (see

 

 

 

 

page 2-9).

 

 

 

4. Expansion cable

Check the connection.

The LEDs light,

Problem is solved.

 

not properly

Make sure the cable is

The problem

Go to Possible Cause 5.

 

connected.

secure at both ends.

 

 

 

remains,

 

 

5. Expansion carrier

Make sure the power

The LEDs light,

Problem is solved.

 

not receiving

cord is plugged into

The problem

Call the AT&T Helpline*.

 

power.

the wall outlet and all

 

 

circuit breakers are in

remains,

 

 

 

the “ON” position.

 

 

 

 

Power up the expan-

 

 

 

 

sion carrier first, then

 

 

 

 

the primary carrier.

 

 

*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.

Maintenance and Customer Support C-3

Page 133 Page 135
Page 134
Image 134
AT&T II manual Troubleshooting, Maintenance and Customer Support C-3
Page 133 Page 135

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.
Top Page Image Contents