Ebone Service Quality Secures Business With International Provider to the Financial Services Industry.

Business Editors/Hi-Tech Writers

LONDON & BRUSSELS--(BUSINESS WIRE)--Dec. 6, 2001

Gains International, one of the world's leading providers of data and voice services for the world's major financial institutions, is using Ebone's IP network to provide mission-critical communication services to its financial customers in Luxemburg. As a result of the service levels provided by Ebone, Gains International also plans to use Ebone as a key provider of network services in other parts of Europe.

"We were very impressed by the quality of the people and the level of service Ebone has delivered," said Gains International commercial director, Barry Purkis. "Ebone gave us the kind of service we provide to our customers, which is why Gains International is using Ebone and is planning to use more of its network across Europe."

"Our customers - most of the world's leading investment banks, brokers and carriers- rely on our voice and data services as mission-critical tools for their business operations. Consequently, we need a network provider than can deliver the highest -quality and most reliable service. Ebone is one of the clear leaders in Europe," added Purkis.

Gains International operates around the world providing the financial sector with voice and data services, such as trader voice and managed networks primarily for dealing and trading environments. It has 150 customers in 80 cities across Europe, North America, Asia Pacific and Australasia covering all the leading financial centres as well as emerging financial markets.

Gains International is using a dual IP network link into Luxembourg and, as well as its service quality, chose Ebone because it is one of the few leading network operators providing a reliable network into Luxembourg.

"Gains International is another example of an international organisation whose very success and reputation requires the most reliable data network infrastructure anywhere. This, in turn, enables them to provide their customers with added value and reliable business services," said Leo McCloskey, senior vice president marketing, Ebone.

About Gains International

Gains International is a provider of specialist voice and data services into the trading rooms and front office operations of financial institutions world-wide. A global organisation with offices in London, New York, Singapore, Sydney, Hong Kong and (through an affiliated company) Tokyo, the Gains network has points of presence in over 80 countries world-wide. For further information visit www.gains.com or call 020 7550 8888.

About Ebone

Ebone, a division of Global TeleSystems, Inc. (GTS), is the original and most experienced broadband IP and optical networking company in Europe. Serving Europe's leading carriers, service providers, media companies and enterprises with the highest quality IP and optical networking services, Ebone's fibre and IP network extends more than 25,000 kilometres to nearly every major European city. Overall, Ebone has operations in 69 European cities plus the United States. Operating headquarters are in London. On 19 October 2001, GTS announced that it had signed a definitive share purchase agreement under which KPNQwest ("KPNQwest") (NASDAQ and ASE: KQIP) has agreed to acquire, under the terms and conditions in the agreement and subject to normal regulatory approvals, the business of Ebone and GTS Central Europe. For further information, please visit us at www.ebone.com.

This press release contains certain forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, which are intended to be covered by the safe harbors created thereby. Investors are cautioned that all forward-looking statements involve risks and uncertainties. Although GTS believes that the assumptions underlying the forward-looking statements contained herein are reasonable, any of the assumptions could be inaccurate, and therefore, there can be no assurance that the forward-looking statements included in this press release will prove to be accurate. In light of the significant uncertainties inherent in the forward-looking statements included herein, the inclusion of such information should not be regarded as a representation by GTS or any other person that the objectives and plans of GTS will be achieved.