Intervoice Awards Hosting And Network Services Contract To WorldCom

Voice and Data Solutions Provider to Utilize WorldCom's UUNET IP Network
for Unrivaled Performance and Global Reach

CLINTON, Miss., December 4, 2002 - WorldCom (WCOEQ), the leading global business data and Internet communications provider, today announced that Intervoice, Inc. (NASDAQ: INTV), a world leader in voice and data solutions, has selected WorldCom to provide Internet colocation services.

WorldCom is providing Intervoice with global access to its extensive data center footprint and rigorously engineered Internet backbone. By colocating its Web servers in WorldCom's continuously monitored hosting facilities, Intervoice eliminates the capital expense and staffing demands of an in-house solution. Through direct high-speed connections to WorldCom's UUNET® IP network, Intervoice is maximizing its server performance and dependability. Additionally, Intervoice is proactively advancing its business continuity capabilities for its customers and itself by placing servers off-site, in a secure WorldCom facility.

"When companies, like Intervoice, rely on the Internet to do business, they rely on WorldCom," said Dennis Richardson, director of WorldCom Managed Service Solutions. "Our Internet expertise, global IP backbone and advanced data centers allow us to exceed our customers' most demanding performance and reliability requirements. We guarantee it."

Intervoice's hosting solution is covered by WorldCom's six-point service level guarantee, assuring 100 percent network and power availability, 99.5 percent packet delivery, and other key metrics to ensure 24/7 operations, regardless of demand levels.

"WorldCom's hosting solution enables Intervoice to offer a powerful combination of infrastructure services to our customers worldwide," said Daryl Gambrell, director of managed services for Intervoice. "Our common commitments to customer satisfaction and technical innovation are at the heart of this new business relationship."

Intervoice offers open, standards-based products including speech-enabled IVRs and applications, voice portals, short messaging services (SMS) and unified messaging to a cross-section of markets in North America, Europe, the Middle East, South America, and Asia Pacific.

WorldCom offers the full array of Web hosting solutions through its state-of-the-art data centers across the U.S., Canada, Europe and Asia Pacific, running over the UUNET global IP network.

About WorldCom, Inc.
WorldCom, Inc. (WCOEQ, MCWEQ) is a pre-eminent global communications provider for the digital generation, operating in more than 65 countries. With one of the most expansive, wholly-owned IP networks in the world, WorldCom provides innovative data and Internet services for businesses to communicate in today's market. In April 2002, WorldCom launched The Neighborhood built by MCI - the industry's first truly any-distance, all-inclusive local and long-distance offering to consumers. For more information, go to http://www.worldcom.com.