|POWER OF ATTORNEY


KNOW ALL MEN BY THESE PRESENTS:


WHEREAS,
Agere Systems Inc., a Delaware corporation (hereinafter referred to as the Company),
proposes to file with the Securities and Exchange Commission, under the provisions of the
Securities Exchange Act of 1934, as amended, an Annual Report on Form 10-K for the fiscal
year ended September 30, 2002; and


WHEREAS,
the undersigned is a Director and/or Officer of the Company, as indicated below his or
her signature:


NOW,
THEREFORE, the undersigned hereby constitutes and appoints Mark T. Greenquist and John W.
Gamble, Jr. and each of them, as attorneys for and in the name, place and stead of the
undersigned, and in the capacity of the undersigned as a Director and/or Officer of the
Company, as indicated, to execute and file such Form 10-K and any amendments or
supplements thereto, hereby giving and granting to said attorneys, and each of them, full
power and authority to do and perform each and every act and thing whatsoever requisite
and necessary to be done in and about the premises, as fully, to all intents and
purposes, as the undersigned might or could do if personally present at the doing
thereof, hereby ratifying and confirming all that said attorneys may or shall lawfully
do, or cause to be done, by virtue hereof.




      IN
        WITNESS WHEREOF, the undersigned has executed this Power of Attorney this
        12th day of December, 2002.
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

|By /s/ RICHARD L. CLEMMER
Name: Richard L. Clemmer
Title: Director |  | By /s/ HAROLD A. WAGNER
Name: Harold A. Wagner
Title: Director
|-------------------------------------------------------------------------------- |  | ----------------------------------------------------------------------------

|By /s/ RAJIV L. GUPTA
Name: Rajiv L. Gupta
Title: Director |  | By /s/ JOHN A. YOUNG
Name: John A. Young
Title: Director
|------------------------------------------------------------------------ |  | ----------------------------------------------------------------------

|By /s/ RAE F. SEDEL
Name: Rae F. Sedel
Title: Director |  | 
|-------------------------------------------------------------------- |  |