Webcast Alert: Applied Innovation Inc. Announces First Quarter 2004 Earnings Webcast COLUMBUS, Ohio, April 7 /PRNewswire-FirstCall/ -- Applied Innovation Inc. announces the following Webcast: What: Applied Innovation Inc.First Quarter 2004 Earnings Webcast When: Wednesday, April 21, 2004 at 10:00 a.m. Eastern Where: http://www.aiinet.com/Company/Investors.asp or http://www.firstcallevents.com/service/ajwz403063010gf12.html How: Live over the Internet -- Simply log on to the web at the address above. Contact: Carol Merry, Senior IR Counselor Fahlgren Mortine Investor Relations (614) 825-1752 If you are unable to participate duringthe live webcast, the call will be archived on the Web site http://www.appliedinnovation.com/ . To access the replay, click on the link on the company's home page. About Applied Innovation Applied Innovation is a network management solutions companythat simplifies and enhances the operation of complex, distributed voice and data networks. Building on a deep knowledge of network architecture, elements and management, Applied Innovation delivers unique hardware, software and service solutions that provide greater connectivity, visibility and control of network elements and the systems that support them. Applied Innovation, headquartered in Columbus, Ohio, is traded on NASDAQ under the symbol AINN. For more information, please visit the Company's Web site at http://www.appliedinnovation.com/ . (Minimum Requirements to listen to broadcast: The Windows Media Player software, downloadable free from http://www.microsoft.com/windows/windowsmedia/EN/default.asp and at least a 28.8Kbps connection to the Internet. If you experience problems listening to the broadcast, send an email to .) http://www.firstcallevents.com/service/ajwz403063010gf12.htmlDATASOURCE: Applied Innovation CONTACT: Carol Merry, Executive Counselor, Director of Investor Relations of Fahlgren Mortine Investor Relations, +1-614-825-1752, or Web site: http://www.appliedinnovation.com/

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