MCI and Time Warner Cable Partner to Deliver Next Generation, IP-Enabled Communications

ASHBURN, Va., December 08, 2003 - MCI (WCOEQ, MCWEQ) today announced that it has entered into a multi-year, multi-million dollar agreement with Time Warner Cable to provide consumers with next-generation voice-over-IP (VoIP) communications services utilizing MCI's global voice and data network.

As a result of the services provided by MCI under the terms of the agreement, Time Warner Cable will be able to deploy its residential Internet protocol ("IP") voice service, Digital Phone, nationwide. In addition to providing local points of interconnection to terminate IP voice traffic to the public switched telephone network, MCI will also deliver enhanced 9-1-1 service, local number portability as well as manage network integration and electronic bonding of both companies' order entry systems.

"The time has come for a new solution that delivers all of the simplicity, quality and value that customers want - full service communications, high-speed Internet and video -- all in one package, on one bill, from a single provider," said Jonathan Crane, MCI executive vice president of Corporate Development and Strategy. "This relationship represents the next evolution in consumer communications - leveraging the added capabilities of cable and the global reach of the MCI IP network to create services that leave the old public switched network behind."

The agreement also enables the cost-efficient use of both companies' access facilities, simplifies pricing and offers new communications features that not only benefit consumers today but also pave a logical migration path toward new communications technologies in the future.

About WorldCom
WorldCom, Inc. (WCOEQ, MCWEQ), which currently conducts business under the MCI brand name, is a leading global communications provider, delivering innovative, cost-effective, advanced communications connectivity to businesses, governments and consumers. With the industry's most expansive global IP backbone, based on the number of company-owned POPs, and wholly-owned data networks, WorldCom develops the converged communications products and services that are the foundation for commerce and communications in today's market. For more information, go to http://www.mci.com.