On an MLS- or MLC-Model

On a Standard Phone

 

 

Phone*

 

 

 

 

 

 

 

 

To make an outside call

1. Press an unlit line button.

This equipment feature is not available

 

on a secondary call

 

on a standard phone, but may be

 

The secondary line may be

2. Lift the handset.

available from Centrex.

 

3. Dial the number according to your

 

 

 

someone’s primary line; you

 

 

 

may not be allowed to make

Centrex instructions.

 

 

 

outgoing calls.

 

 

 

 

 

 

 

 

 

To Auto Dial a number

1. Lift the handset or press [ Spkr ].

This equipment feature is not available

 

 

 

on a standard phone. Some feature

 

You can use an Auto Dial

2. Press the Auto Dial button on which the

phones have programmable buttons

 

button to dial a number—for

number is programmed.

that can store phone numbers for auto

 

example, an account

The equipment controller selects your

dialing.

 

number for an automatic

primary line, turns on the speaker if the

 

 

 

banking service—while on

handset is on hook, and dials. (The number

 

 

 

an outside call.

being dialed shows on MLS display phones.)

 

 

 

 

 

 

 

 

To dial a System or

1. Lift the handset or press [ Spkr ].

This equipment feature is not available

 

Personal Speed Dial

 

on a standard phone, but may be

 

Number

2. Press [ Feature ].

available from Centrex. Some feature

 

 

 

phones can be programmed with

 

See pages 5-14and 5-15for

3. Dial the two-digit Speed Dial code

speed dial numbers.

 

programming instructions for

(20–79 for a System Speed Dial number;

 

 

 

MLS- and MLC-model

80–99 for a Personal Speed Dial

 

 

 

phones.

number.)

 

 

 

 

The system turns on the speaker if the hand-

 

 

 

Ask your System Manager

set is on the hook, and dials the Speed Dial

 

 

 

for a copy of the form

number. (The dialed number shows on MLS

 

 

 

showing your company’s

display phones unless it is Marked.)

 

 

 

System Speed Dial numbers.

 

 

 

 

 

 

 

 

 

To ring another

1. Lift the handset or press [ Spkr ].

1. Lift the handset.

 

extension on your system

2. Dial the Centrex extension number.

You hear the Centrex dial tone.

 

To ring an extension using

2. Dial the Centrex extension number.

 

 

 

the intercom on MLS- or

 

 

 

 

MLC-model phones, see

 

 

 

 

Appendix B.

 

 

 

 

 

 

 

 

 

To voice page another

1. Lift the handset.

This equipment feature is not available

 

extension on your system

2. Press the button programmed with the

on a standard phone.

 

 

 

 

 

You can voice page

Centrex extension number you want

 

 

 

MLS-model phones only

to call.

 

 

 

To use this feature if the

3. After the beep, start talking.

 

 

 

extension number is not

Your voice is heard on the speaker at the

 

 

 

programmed on a button,

paged MLS-model phone.

 

 

 

see Appendix B.

 

 

 

 

 

 

 

 

 

To ring all extensions in

Press the button programmed with this

This equipment feature is not available

 

a Calling Group

feature or follow Steps 1 through 3 below:

on a standard phone, but your Centrex

 

 

 

system may allow you to ring Centrex

 

See page 5-13for

1. Lift the handset.

calling groups.

 

instructions on setting up a

2. Press [ Intercom ].

 

 

 

Calling Group. See page

 

 

 

5-16for instructions on

You hear the intercom dial tone.

 

 

 

programming Group Calling

3. Dial [ 7 ] and a group number (1-4).

 

 

 

onto a button on MLS- or

 

 

 

MLC-model phones.

All non-busy extensions in the group ring.

 

 

 

 

 

 

 

*If you are using an MLC-6 cordless phone, make sure the handset is on before following these instructions. For more information on using the MLC-6 phone, see AT&T MLC-6 Cordless Telephone Quick Reference: Display and Controls.

Using Telephones 6-13

Page 106 Page 108
Page 107
Image 107
AT&T II On a secondary call, To Auto Dial a number, To dial a System or, Personal Speed Dial, Number, To ring another
Page 106 Page 108

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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