Agere Systems to Webcast Presentations at Upcoming Investment Conferences ALLENTOWN, Pa., Feb. 14 /PRNewswire-FirstCall/ -- Agere Systems (NYSE:AGR.ANYSE:AGR.B) today announced that it will present at two upcoming investment conferences: the Goldman Sachs Technology Investment Symposium on February 23, 2005 at 11:00 a.m. EST, and the Morgan Stanley Semiconductor and Systems Conference on March 7, 2005, at 11:00 a.m. EST. (Logo: http://www.newscom.com/cgi-bin/prnh/20040618/AGERELOGO ) The presentations will be webcast live over the Internet at http://www.agere.com/webcast. After each conference, a replay of the webcast will be available on the Agere web site at http://www.agere.com/webcast. Agere Systems is a global leader in semiconductors for storage, wireless data, and public and enterprise networks. The company's chips and software power a broad range of computing and communications applications, from cell phones, PCs, PDAs, hard disk drives and gaming devices to the world's most sophisticated wireless and wireline networks. Agere's customers include top manufacturers of consumer electronics, communications and computing equipment. Agere's products connect people to information and entertainment at home, at work and on the road -- enabling the connected lifestyle. http://www.newscom.com/cgi-bin/prnh/20040618/AGERELOGO http://photoarchive.ap.org/ DATASOURCE: Agere Systems CONTACT: Media Inquiries: JoAnna Schooler, +1-610-712-1746, +1-908-283-4060 (cell), ; or Investor Inquiries: Sujal Shah, +1-610-712-5471, , both of Agere Systems Web site: http://www.agere.com/ http://www.agere.com/webcast

Copyright