Teleglobe Continues Strong Growth of Internet Business in Caribbean.

ARUBA--(BUSINESS WIRE)--May 18, 1999--

Internet Capacity Sold Increases 200 Per Cent Over Past Year

Global Carrier Continues Regional Expansion

Via Network Investments, New Offices

Teleglobe Communications Corporation announced the continued growth of its Internet business in the Caribbean with a 200 per cent increase in Internet capacity sold over the past year.

The company has become one of the leading providers of global Internet connectivity in the region thanks to its continued investment in the region's fiber optic cable and satellite systems. Teleglobe also announced that it has opened an office in Miami and the Dominican Republic and plans to open an office in Puerto Rico in the coming months to support growth in the region.

Teleglobe made these announcements at the annual CANTO conference, a meeting of the region's telecommunications ministers and executives.

"We have seen tremendous demand from users in the Caribbean for high-quality, economical global Internet services," said Paolo Colombi, regional vice president, Mexico, Central America, Panama and Caribbean for Teleglobe.

"During the past year, business in the region has increased significantly due to demand for high-bandwidth applications, such as high-speed Internet, ATM and high-definition broadcasting."

In the Caribbean, Teleglobe currently provides Internet connectivity via its Globeinternet(sm) worldwide backbone to Antigua, Aruba, Bahamas, Barbados, Cayman Islands, Cuba, Curacao, Dominican Republic, Grenada, Jamaica, Martinique, Sint Maarten, Trinidad and Tobago, and Turks/Caicos.

This brings to 14 the number of access customers Teleglobe has secured in the Caribbean since the launch of its Globeinternet service two and a half years ago.

As the world's third largest owner in submarine fiber optic cable systems, Teleglobe is significantly investing in fiber optic capacity in the Caribbean and Latin America as part of its US$5 billion GlobeSystem(sm) network expansion plan.

The five-year project will connect 160 of the world's largest cities with a high-capacity fiber-optic network, offering Carriers, Internet Service Providers, Business Customers and Content Providers with integrated voice, video and data services. In the region, Teleglobe has purchased additional capacity on Americas 2, Atlantis 2, Maya 1, and the Pan American fiber optic cable systems.

Teleglobe also owns capacity in the Alonso de Ojeda, Americas 1, Antillas 1, Bahamas 2, CARAC, Columbus 2, ECFS, PTAT, Taino-Caribe, TCS 1 and Unisur systems. Additionally, Teleglobe maintains long-standing bilateral service arrangements with every Caribbean nation.

Among the Internet services offered to Carriers and Internet Service Providers is a simplex satellite link using a high-bandwidth simplex satellite circuit combined with existing duplex submarine cable circuits to provide a hybrid asymmetric link to the United States for Internet access.

This arrangement substantially reduces overall transmission costs and effectively leverages the availability of satellite capacity, while cutting in half the delay associated with an all-satellite-based connection. In addition, Teleglobe offers a full portfolio of switched voice, transmission and enhanced services, including collect calling, prepaid cards and international toll-free services.

Teleglobe owns and operates one of the world's largest Internet backbones, connecting hundreds of ISPs in nearly 100 countries as well as many content providers and search engines.

The company's Globeinternet(sm) backbone incorporates a high performance multiple OC-12 ring-based Cisco Powered Network (Nasdaq: CSCO) that spans North America and Europe, a state-of-the-art global IP routing service and extensive international satellite and transoceanic cable facilities for worldwide Internet connectivity. The network currently is being upgraded to OC-48 status.

Teleglobe Inc. (NYSE, TSE, ME:TGO) is a recognized leader in global telecommunications. Through its subsidiary Teleglobe Communications Corporation, the company develops and supplies global connectivity services to carriers, switchless resellers, Internet service providers, multinational corporations and broadcast customers worldwide.

Through Excel Communication's proven marketing and distribution channels, Teleglobe also caters to an expanding international retail customer base. According to TeleGeography, the company is the fourth-ranked long distance provider in the United States and, according to a recent KMI Corporation study, the third largest owner of undersea fiber optic cable systems.

Teleglobe has a 50% interest in ORBCOMM, the world's first commercial low-earth-orbit, satellite-based, data communications system. Additional information is available at www.teleglobe.com.

For additional information contact:

John Murray, Corporate Communications

Corporation, 703/755-2180 or [e-mail]

Sylvia Morin, Corporate Communications, Teleglobe Inc.,

514/868-7762 or [e-mail]

Nicole Blanchard, Investor Relations, Teleglobe Inc.,

514/868-8148 or [e-mail]

Jacques Deforges, VP & Corporate Treasurer, Teleglobe Inc.,

514/868-7716 or [e-mail]