Grey Worldwide/San Francisco Helps Telseon Break theCommunications Bottleneck.

Business Editors/High-Tech Writers

SAN FRANCISCO--(BUSINESS WIRE)--Sept. 5, 2000

One month after winning the account, Grey Worldwide/SF, a division of Grey Worldwide (Nasdaq:GREY), one of the world's leading independent advertising and communications companies, has launched a

"Grey Worldwide/SF has once again partnered with a category killer," said Kieran Hannon, president and chief operating officer of Grey Worldwide/SF. "We at Grey clearly understand how to launch a new company like Telseon that uniquely delivers on the promise it makes to its customer. We're proud of our relationship and creative work we've done to define their brand for today and the future."

Targeting CTOs and CIOs of service providers and their enterprise customers, ads will appear in several major newspapers, including The Wall Street Journal, The New York Times, San Francisco Chronicle, San Jose Mercury News, Contra Costa Times, Denver Post and Denver Rocky Mountain News. Magazine ads are running in CIO and Red Herring. The print campaign will also be complemented by outdoor and radio.

The campaign focuses on the benefits of a "dedicated fiber optic network" vs. the out-dated telephone company's network and conveys to the audience that they can save themselves emotional and monetary distress by utilizing Telseon's breakthrough services.

One ad execution features a photo of Dwight D. Eisenhower with the headline, "Was Your Outside Data Network Developed During an Earlier Administration?" Another asks, "Does Your Data Run Into a Time Warp Once it Leaves the Office?" while showing an image of a 1960s-looking data center.

"Grey's execution effectively reminds the reader that the traditional telecommunications foundation cannot meet the Internet Economy's data communications needs," said Vesna Swartz, vice president of marketing at Telseon. "Using the antiquated phone network to transmit data can slow the speed of business communications to a lethargic pace. The logo and tagline, 'Because data should fly,' positions Telseon as a vital solution."

Telseon breaks the data communications bottleneck for metropolitan-based businesses with instantly scalable bandwidth-on-demand. Unlike the incumbent telecommunications companies, who run data over an archaic telephone network that was designed for voice transmissions, Telseon uses gigabit Ethernet -- the most common networking technology for linking individuals and businesses -- to provide a service that is changing the way people acquire and use bandwidth in the metro.

"With this campaign, Grey Worldwide/SF has captured the essence of what Telseon is all about, putting control back into the customer's hands," said John Kane, chief executive officer of Telseon. "The agency has demonstrated the creativity and understanding of today's competitive communications market necessary to effectively highlight Telseon's unique bandwidth services to the market."

About Telseon:

Telseon provides service providers and their enterprise customers with fast, secure, instantly scalable solutions that break the bandwidth bottleneck in the metro. By leveraging high-bandwidth gigabit IP services, Telseon enables customers to expand their network reach to meet their business needs. With $86 million in funding from a number of well-respected venture capital and investment firms including Crosspoint Ventures, Sevin Rosen Funds, Morgan Stanley Dean Witter, DLJ and The Goldman Sachs Group, Inc., Telseon is well positioned to change the way metropolitan bandwidth is delivered. The company is headquartered in Denver and can be reached at 888/858-8032 or on the web at http://www.telseon.com.

About Grey Worldwide/SF:

Grey Worldwide/San Francisco currently has billings of $185 million, and is a division of the Grey Global Group, one of the world's leading independent advertising and communications companies. San Francisco currently employees 60 people. Clients include: Oracle, NorthPoint Communications, SmartAge.com, Seagate, 24-Hour Fitness, Inc., Challenge Butter, Egghead.com, Cyrano Sciences, Inc., Galileo Foods (a Division of Sara Lee Corp.), Tradiant and zipRealty.com.

Grey Global Group Inc. and its subsidiary companies form a global network of 434 offices in 90 countries. Grey stock (GREY) is traded on NASDAQ.