Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Wojtaszek Gary J
2. Date of Event Requiring Statement (Month/Day/Year)
10/20/2005
3. Issuer Name and Ticker or Trading Symbol
AGERE SYSTEMS INC [AGR]
(Last)
(First)
(Middle)
1110 AMERICAN PARKWAY NE
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VP & Corp Controller
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

ALLENTOWN, PA 18109
6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 100
I
owned by son
Common Stock 1,020
I
by 401(k) plan

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Options (Right to buy) 10/01/2005(1) 09/30/2011 Common Stock 7,500 $ 11 D  
Stock Options (Right to buy) 12/01/2005(2) 11/30/2011 Common Stock 28,500 $ 13.8 D  
Stock Options (Right to buy) 12/02/2003(3) 12/01/2009 Common Stock 6,450 $ 15.5 D  
Stock Options (Right to buy) 12/01/2004(4) 11/30/2010 Common Stock 6,950 $ 35.45 D  
Stock Options (Right to buy) 08/01/2002(5) 07/31/2008 Common Stock 1,400 $ 55.95 D  
Stock Options (Right to buy) 08/01/2002(5) 07/31/2008 Common Stock 1,400 $ 55.95 D  
Stock Options (Right to buy) 05/01/2002(6) 04/30/2008 Common Stock 4,000 $ 72.1 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Wojtaszek Gary J
1110 AMERICAN PARKWAY NE
ALLENTOWN, PA 18109
      VP & Corp Controller  

Signatures

Gary J. Wojtaszek 10/31/2005
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) 1/4 of this option vests on October 1, 2005; 1/48th of this option vests monthly for the remaining three years of the vesting period.
(2) 1/4 of this option vests on December 1, 2005; 1/48th of this option vests monthly for the remaining three years of the vesting period.
(3) 1/4 of this option vests on December 2, 2003; 1/48th of this option vests monthly for the remaining three years of the vesting period.
(4) 1/4 of this option vests on December 1, 2004; 1/48th of this option vests monthly for the remaining three years of the vesting period.
(5) 1/4 of this option vests on August 1, 2002; 1/48th of this option vests monthly for the remaining three years of the vesting period.
(6) 1/4 of this option vests on May 1, 2002; 1/48th of this option vests monthly for the remaining three years of the vesting period.

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