EX-99.1 2 e603238_ex99-1.txt JOINT FILING AGREEMENT EXHIBIT 99.1 AGREEMENT REGARDING JOINT FILING UNDER UNDER RULE 13D-1(K) OF THE EXCHANGE ACT In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, each of the undersigned agrees to the filing on behalf of each of a Statement on Schedule 13G, and all amendments thereto, with respect to the shares of Common Stock of CenturyTel, Inc. Date: February 12, 2008 /s/ James H. Simons -------------------------------- James H. Simons Renaissance Technologies LLC By: /s/ Mark Silber ---------------------------- Mark Silber Executive Vice President Page 8 of 8 Pages