Also found in: Dictionary, Thesaurus, Medical, Legal, Financial, Acronyms, Wikipedia.


A United States long-distance telecommunications company. Recently bought from British Telecom


(1) (Media Control Interface) A high-level programming interface from Microsoft and IBM for controlling multimedia devices. It provides commands and functions to open, play and close the device.

(2) (Microwave Communications Inc.) The long distance telephone company that was largely responsible for competitive telephone services in the U.S. It all started in 1963 in Springfield, IL. Jack Goeken and four others formed a company to increase sales of two-way radios by building microwave towers along Route 66 from St. Louis to Chicago for truckers. Bill McGowan, a New York consultant, joined the company in 1968 and helped Goeken acquire leases to build towers nationwide at a time when AT&T controlled virtually all long distance in the U.S.

In 1969, the FCC granted MCI the right to offer long distance services and to hook up to AT&T's network for access to the customer's premises, yet MCI was thwarted at every turn. In 1974, it filed a suit against AT&T, and the Justice Department filed its own suit, all of which led to the breakup of AT&T in 1984 (see Divestiture).

Throughout the 1980s and 1990s, MCI raised USD $2.6 billion in capital, offered innovative services and ultimately captured one third of the business market. After McGowan died in 1992, MCI lost its soul and was slower to form novel strategies; however, it did develop one of the best IP networks in the country. In 1997, MCI was acquired by WorldCom for USD $30 billion. Five years later, WorldCom declared bankruptcy, but emerged in 2004 as MCI.

In 2005, MCI was acquired by Verizon Communications, Inc. and became the Verizon business division of the company ( See MCI Mail, WorldCom and MCI Decision.
References in periodicals archive ?
MCI supports its suite of Ethernet services with comprehensive service level guarantees.
In the deal, MCI Worldcom gains Sprint's nationwide wireless operation, a crucial tool in competing with AT&T Corp.
In a related measure, MCI's Board adopted a stockholders rights plan, approved earlier by the company's stockholders, that provides a dividend of one preferred share purchase right for each outstanding share of MCI common stock and Class A common stock owned by BT.
Judge Wilk has never decided that motion but waited for an opportunity to issue this opinion, attempting to carve out a modification of the Ansonia opinion, which we believe says the MCI is part of the permanent increases which form a part of the base rent.
It has enabled MCI to rapidly incorporate customer feedback into the business, enabling positive changes to be made quickly and efficiently.
Several analysts predicted Wednesday that MCI would be hard pressed not to accept the higher offer from Worldcom, which would pay the equivalent of $41.
Because of the extra costs MCI now faces in penetrating the U.
MCI is negotiating with additional telecom operators and expects to provide similar calling services with other carriers before the end of the year.
AT&T and MCI are a major force whose sudden departure will collapse competitive choice, spike prices to business and concentrate the market power of SBC and Verizon at a level not seen since the days of the old Bell System.
The combination with BT is an about-face of sorts for MCI, too.
The MCI VideoPhone, is also distributed in the United Kingdom by BT under the name, the "BT Relate 2000 Videophone.