In Case of Difficulty

If you should have a problem with your premises equipment, you may be able to solve it yourself by following the appropriate troubleshooting procedures described in this appendix. In the U.S., AT&T provides a toll-free customer helpline 24 hours a day at 1 800 628-2888.

For assistance in Canada, contact your local AT&T authorized dealer.

If you call, have the following information ready so that the representatives can better help you:

The kind of equipment controller you have (for example, PARTNER II Centrex, Release 1)

The number of lines and extensions in your system

The model number of the problem phone, if applicable (located on the upper right-hand corner of the phone—MLS-34D, MLS-12D, MLS-12, MLS-6, or MLC-6).

If you followed a troubleshooting procedure and need more help, tell the representative what you did.

Power Failure Operation

When power to the equipment controller is cut off, the first line jack on each 206 module automatically connects to the first extension jack on the module. For example: line jack 01 connects to extension jack 10; line jack 07 connects to extension jack 16; line jack 13 connects to extension jack 22; and line jack 19 connects to extension jack 28. This allows the equipment controller to maintain telephone service during a power outage.

To make and answer calls during a power failure, you must use a standard touch-tone or rotary telephone connected to extension jack 10, 16, 22, or 28. For this reason, it is strongly suggested that you have a standard telephone connected—either directly or by a 267F2 bridging adapter—to the first extension jack of every 206 module (extension jacks 10, 16, 22, and 28). During a power failure, only standard phones can make and receive calls.

The equipment controller can stay programmed for approximately four days after it stops receiving power. After four days elapse, all of the equipment’s programmed settings return to the factory settings.

C-2Maintenance and Customer Support

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AT&T II manual Case of Difficulty, Power Failure Operation

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.