Teleglobe's Global IP Network Brings Universidad Nacional Autonoma De Mexico Access to World's Major Research and Education Networks.

Business Editors/Hi-Tech Writers

RESTON, Va.--(BUSINESS WIRE)--March 13, 2001

Agreement Enhances University's Role as Mexico's Major Scientific and

Research Institution

Teleglobe (NYSE, TSE:BCE), a leading provider of global communications and e-Business services, today announced it has signed an agreement with Universidad Nacional Autonoma de Mexico (UNAM), the oldest university in the Americas, and Mexico's major scientific and research institution, to provide increased capacity for high-speed global Internet connectivity and a direct connection to major North American and global research and education networks via Teleglobe's Internet backbone network.

Terms of the transaction were not disclosed.

Under the agreement, Teleglobe will provide an E-3, 34 Mbps connection from UNAM's 1,400 km in-country Internet backbone network to Teleglobe's global IP backbone network through the company's Mexico City Point of Presence (POP).

UNAM is Mexico's largest non-profit Internet Service Provider (ISP), bringing Internet access to 350,000 students and faculty members throughout the country via arrangements with more than 120 government agencies, public hospitals and news media to provide local connections and making educational programs and tele-medicine resources available in remote locations.

"Mexico's research and academic community has much to contribute to the global exchange of ideas and expertise with their colleagues in international research and education," said Eduardo Gandarilla, Teleglobe's Vice President - Americas. "We're proud to work with Universidad Nacional Autonoma de Mexico in delivering high-speed Internet access to their faculty and students through our global IP network."

Among Teleglobe's customers are major international academic networks in Canada (CANARIE), China (CERNET), Malaysia (MIMOS), the Nordics (NORDUnet), Netherlands (SURFnet) and the United Kingdom (UKERNA/JANET/SUPERJANET).

"Working with Teleglobe, we are delivering high quality Internet services that are essential to our role as Mexico's major source of scientific investigation. Even though our university is more than 450 years old, we are still the country's leading academic institution because over the years we have gone through many academic transformations. Now, with the Internet, we transform ourselves once more," said Victor Guerra, UNAM's CEO DGSCA (General Services Direction of Academic Computer).

Teleglobe, a leading provider of global communications and Internet services, enables its customers to maximize the potential of the Internet through its delivery of hosting services, content distribution and global connectivity.

With a maximum lit capacity of 10 million+ Gbps-miles, 60 major POPs and 600,000 square feet of hosting facilities (year-end 2001) Teleglobe is one of the world's largest international Internet backbones serving a broad base of enterprise, Internet content provider (ICP), Internet service provider (ISP) and carrier customers, Teleglobe is expanding its network with its GlobeSystem initiative, a multi-billion dollar IP network and hosting deployment that will increase current capacity 200-fold and provide a robust platform for a portfolio of Internet and data services. For more information, visit www.teleglobe.com

This release contains information about management's view of Teleglobe's future expectations, plans and prospects that constitute forward looking statements for purposes of the safe harbor provisions under The Private Securities Litigation Reform Act of 1995.

Actual results may differ materially from those indicated by these forward-looking statements, as a result of a variety of factors including, but not limited to, competitive developments, risks associated with Teleglobe's growth, the development of the Internet market, regulatory risks and other factors that are discussed in Teleglobe's Annual Information Form and other documents periodically filed with the SEC.