Lights

Each line button has a green light and a red light. The meaning of these lights varies, depending on whether the button is used to access a line or is programmed with an equipment feature or Intercom Calling number.

Table 6-1. Light Patterns for MLS- and MLC-Model Phones

 

 

 

 

Line Button

Feature

Intercom Calling

 

 

Light Pattern

 

Button*

Button

 

 

Steady On

 

Line is busy—green if your

Feature is

Red means the

 

 

 

 

phone is busy, red if a person

on.

person or FAX

 

 

 

 

 

 

 

at another extension is busy

 

machine at the

 

 

 

 

on the line.

 

extension is making

 

 

 

 

 

 

or answering a call.

 

Off

 

Line is idle (not in use).

Feature is

Extension idle (not in

 

(steady off)

 

 

off.

use).

 

 

 

 

 

 

 

Flash

 

A call is ringing on the line.

—

Green if an intercom

 

 

 

 

Green flash means a call is

 

call is coming in from

 

(long on, long off)

 

ringing at your extension.

 

the extension or the

 

 

 

 

Red flash means a call is

 

FAX machine

 

 

 

 

ringing on the line, but not at

 

extension is calling

 

 

 

 

your extension.

 

you.

 

Alternating Red/Green Flash

 

Appears at both extensions

—

—

 

(red on, green on)

 

in a joined call.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wink

 

A call is on hold. When

—

—

 

 

 

 

green, the call is on hold at

 

 

 

 

(long on, short off)

 

your extension—when red, at

 

 

 

 

 

 

 

another extension. (Anyone

 

 

 

 

 

 

 

with the line can retrieve the

 

 

 

 

 

 

 

call.)

 

 

 

 

Flutter

 

Green means a call is on

—

—

 

 

 

 

Exclusive Hold at your exten-

 

 

 

 

(short on, short off)

 

sion and can only be

 

 

 

 

 

 

 

retrieved from your extension.

 

 

 

 

Broken Flutter

 

—

—

Fax Management:

 

 

 

 

 

 

Fax not answering,

 

(short on/off, long off)

 

 

 

may be out of paper.

 

*Applies only to Night Service, Do Not Disturb, and Privacy, which must be programmed on a button with lights (see pages 5-13and 5-16).

NOTE:

When a phone is in programming mode, the lights show information about programmed settings. See “Telephone Programming Procedures” on page 5-4 for details.

Using Telephones 6-3

Page 96 Page 98
Page 97
Image 97
AT&T II manual Lights, Light Patterns for MLS- and MLC-Model Phones, Line Button Feature Intercom Calling Light Pattern
Page 96 Page 98

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