Electromagnetic Interference (EMI) filter, 1-11Emergency Phone Number List procedure (#406), 5-12EMI (Electromagnetic Interference) filter, 1-11Equipment

auxiliary, 1-9,7-1features, 4-24installing, 2-1premises, 1-7proprietary, 1-11

Equipment controller description, 1-8installing, 2-3,2-9

Equipment features

Abbreviated Ringing, 4-25,5-11Auto Dialing, 5-15,6-13

Automatic Extension Privacy, 4-25,5-11Button-Down Mode, 4-25,5-10

Call Forwarding, 4-25,5-16Call Pickup, 4-25,5-16

Call Reporting (SMDR), 4-25,5-13Dial Mode, 4-25,5-11

Dialing Restrictions, 4-25,5-12Direct Line Pickup, B-3,B-4Display Language, 4-25,5-11Do Not Disturb, 4-26,5-16,6-10Doorphones, 4-26,5-13

Emergency Phone Numbers, 4-26,5-12

Exclusive Hold, 4-26,5-16,6-10,6-15Extension Hunt Group, 5-16

Fax Machines, 4-26,5-13for call coverage, 4-10Group Calling, 4-26,5-16,6-11

Group Paging, 4-26,5-16,6-11,6-14Group Pickup, 4-26,5-16,6-11Hotline, 4-26,5-13

Intercom Calling, 4-26,B-1

Last Number Redial, 4-26,5-16,6-11listing, 4-25

Loudspeaker Paging, 4-26,5-16,6-11,6-17Message Light Off, 4-10 ,5-16, B-5Message Light On, 4-10,5-16,B-5Message Lights, 4-26,5-16

Music on Hold, 4-27,5-13Night Service, 4-27,5-13one-touch dialing, 4-25

Personal Speed Dialing, 4-15,5-15,6-13Privacy, 4-27,5-16,6-11

Recall, 4-27,5-16,6-10

Save Number Redial, 4-27,5-16,6-10Speed Dialing, 4-14,4-27,5-15summary, 1-6

System Password, 4-27,5-12

System Speed Dialing, 4-14,5-14,6-13Touch-Tone Enable, 4-27,5-16,6-11using, 6-10

Voice Paging, 6-13,B-3Example setup, 2-6

Exclusive Hold feature programming, 5-16using, 6-10,6-15

Expansion processor module description, 1-8installing, 2-3,2-9specifications, D-3

Extension

combination, 1-10,2-5,6-9to 6-10connecting, 2-10

installation, 2-6jack number, 3-4

jack specifications, D-1to D-2numbering, 2-4

out of building, D-2receptionist, 4-3

Extension Hunt Group feature programming, 5-16using, 5-16

Extension Programming instructions, 5-16

F

Fax machine

line assignments, 4-10multiple, 7-4

Notify feature, 7-3restricting dialing from, 7-3send and receive, 7-4setup, 7-1

setup decisions, 4-24single, 7-3transferring call to, 7-2

Fax Machine Extensions procedure (#601), 4-24,5-13Fax Management

button, 4-10,7-2light, 7-2programming, 5-13setup, 7-2

FCC information, E-1Feature telephone, 6-8Features

Centrex, 3-5to 3-6equipment, 1-6

Forms, A-1

400module description, 1-8installing, 2-3,2-9specifications, D-1

G

Group Calling feature programming, 5-16using, 6-11

Index IN-3

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AT&T II manual Index IN-3

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.