Calling restrictions

all calls from an extension, 5-12Allowed phone numbers, 5-12Centrex, 3-6

Disallowed phone numbers, 5-12equipment, 4-15

outside line, 4-16secondary line, 4-10with password, 5-12

Capacity, system, 1-8,D-1Carrier

description, 1-8installation, 2-9placement, 2-3

Central Call Coverage, 4-3

Centralized Telephone Programming instructions, 5-15Centrex

call coverage, 4-5dial-out code, 3-7extension number, 3-3,6-1features, 3-5

ringing pattern, 1-6telephone number, 3-3

Centrex features

Abbreviated Extension Dialing, 3-5accessing, 6-12

Call Detail Recording, 3-5

Call Forwarding (Busy), 3-5

Call Forwarding (No Answer), 3-5Call Forwarding (Send All Calls), 3-5Call Hold, 3-5

Call Pickup, 3-5

Call Waiting, 3-5

Conference, 3-5Dial-Out Code, 3-5Direct Connect, 3-5Directed Call Pickup, 3-5Line Calling Restrictions, 3-6listing, 3-5

Multi-Line Hunt, 3-6

Night Service, 3-6programming on buttons, 3-6Speed Dialing (Group), 3-6Speed Dialing (Personal), 3-6Transfer, 3-6

Voice Mail, 3-6

Changing equipment settings, 5-7Combination extension

definition, 1-10installation, 2-5problem, C-6to C-7using, 6-9to 6-10

Conference calling, 3-6,6-16

Copy Settings procedure (#399), 5-4,5-11Credit card scanner setup, 7-7Customizing the system

programming procedures, 5-10setup decisions, 4-1

D

Daily operation, vii Default

line assignments, 3-3,4-5line ringing, 3-3,4-5

Delayed ringing, 1-5

Desk mounting an MLS-model telephone, 2-11Dial Mode procedure (#201), 5-11

Dial tone Centrex, 6-2intercom, B-2

MLS- and MLC-model phones, 6-2Dial-out code, 3-7

Dialing restrictions

all calls from an extension, 5-12Allowed phone numbers, 5-12Centrex, 3-6

Disallowed phone numbers, 5-12equipment, 4-15

outside line, 4-16secondary line, 4-10with password, 5-12

Direct Line Pickup feature answering a call with, B-3joining a call with, B-4programming, 5-16using, B-4

Direct Station Select (DSS), 4-11

Disallowed List Assignments procedure (#405), 5-12Disallowed Phone Number Lists procedure (#404), 5-12Display

language, 5-11

MLS- and MLC-model telephones, 1-9Display Language procedure (#303), 5-11Do Not Disturb feature

for covered extension, 4-9programming, 5-16using, 6-10

Doorphone description, 1-11installation, 2-5,2-12moving, 2-14

setup decisions, 4-23

Doorphone 1 Extension procedure (#604), 5-13Doorphone 2 Extension procedure (#605), 5-13Doorphone Alert Extensions procedure (#606), 4-24,5-13DSS (Direct Station Select), 4-11

E

Electrical requirements, D-2specifications, D-2

Electrical surges, 1-11

IN-2 Index

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AT&T II manual IN-2 Index

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.