ADC's Service Gateway Selected by Earthlink.

SG-1 Delivers Enhanced Network Access to Customers

MINNEAPOLIS -- ADC (NASDAQ:ADCT)(www.adc.com), a leader in communications network infrastructure solutions, today announced that Earthlink (NASDAQ:ELNK) will deploy ADC's SG-1 Service Gateway in its many nationwide municipal Wi-Fi networks. Earthlink is currently providing wireless Internet services for customers in Anaheim, Calif. and is building out networks in Milpitas, Calif., and Philadelphia.

Ideally suited for wireless local area network (WLAN) and other broadband ATM or IP-based networks (DSL, cable), ADC's SG-1 allows service providers to add an intelligent layer of value-added services, such as dynamic bandwidth management and content on demand, without the need for additional, dedicated client software. Service providers can now profitably offer differentiated services and content to users based on individual user profiles.

"Earthlink is one of the leaders in municipal wireless broadband, and ADC's SG-1 Service Gateway will help us continue building world class networks," said Donald Berryman, executive vice president of Earthlink and president of the ISP's municipal networks unit. "Our solution will provide an affordable and portable broadband service for residents, visitors and business users in cities across the United States."

Since the SG-1 uses open standards and protocols, this service gateway is unique in that it can use any portal on the web - commercial, existing or third party - for customer interactive service selection. This capability simplifies integration as it allows unique services to be offered to customers "on the fly" without session termination.

"We are excited to be part of Earthlink's municipal network deployments," said Hilton Nicholson, president of the Active Infrastructure Business Unit for ADC. "Municipal wireless networks utilize new technologies that will enable local governments and network operators to better serve their citizens, visitors and customers."

The SG-1 is at the forefront of innovative technology for customizable, durable network connectivity. The solution's unique drop-in-architecture allows the product to co-exist with any existing network or web technology. Designed for central office or distributed, remote customer premises environments, the SG-1's access control features, combined with dynamic interactive service capabilities, support 1,000 to 128,000 concurrent users on one 16-slot system. Other features include:

* Location-based captive portals;

* Creation of walled gardens for protected environments;

* Differentiated access rights, user interaction and public safety applications;

* Bandwidth-on-demand;

* Support for user mobility and roaming; and

* Application awareness for peer-to-peer and Voice over IP.

About ADC

ADC provides the connections for wireline, wireless, cable, broadcast, and enterprise networks around the world. ADC's innovative network infrastructure equipment and professional services enable high-speed Internet, data, video, and voice services to residential, business and mobile subscribers. ADC (NASDAQ: ADCT) has sales into more than 140 countries. Learn more about ADC at www.adc.com.