Exhibit A
Joint Filing Agreement
The undersigned hereby agree that the statement on Schedule 13G with
respect to the Class A Common Stock, $0.01 par value of Agere Systems Inc.,
dated as of February 13, 2003, is, and any amendments thereto (including
amendments on Schedule 13D) signed by each of the undersigned shall be, filed on
behalf of each of us pursuant to and in accordance with the provisions of Rule
13d-1(k) under the Securities Exchange Act of 1934.
Date: February 13, 2003
MAVERICK CAPITAL, LTD.
By: Maverick Capital Management, LLC
Its General Partner
By: Xxx X. Xxxxxxx III, Manager
By: /s/ Xxxx X. XxXxxxxxxx
---------------------------------
Xxxx X. XxXxxxxxxx
Under Power of Attorney dated
February 13, 2003, filed herewith
as Exhibit B
MAVERICK CAPITAL MANAGEMENT, LLC
By: Xxx X. Xxxxxxx III, Manager
By: /s/ Xxxx X. XxXxxxxxxx
-------------------------------------
Xxxx X. XxXxxxxxxx
Under Power of Attorney dated
February 13, 2003, filed herewith as
Exhibit B
XXX X. XXXXXXX III
By: /s/ Xxxx X. XxXxxxxxxx
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Xxxx X. XxXxxxxxxx
Under Power of Attorney dated February 13,
2003, filed herewith as Exhibit B
