SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Amendment No. 15 Telephone and Data Systems, Inc. ___________________________________________ (Name of Issuer) Common Stock ___________________________________________ (Title of Class and Securities) 879433100 ___________________________________________ (CUSIP Number of Class of Securities) O. Mason Hawkins Chairman of the Board and C.E.O. and Andrew R. McCarroll Vice President & General Counsel Southeastern Asset Management, Inc. 6410 Poplar Avenue; Suite 900 Memphis, TN 38119 (901) 761-2474 ___________________________________________________________ (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) December 15, 2008 ___________________________________________ (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this Schedule because of Sections 240.13d-1(e), 240.13d-1(f), or 240.13d-1(g), check the following box: [ ] CUSIP No. 879433100 13D ___________________________________________________________________ (1) NAMES OF REPORTING PERSONS Southeastern Asset Management, Inc. I.D. No. 62-0951781 ___________________________________________________________________ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) (b) X ___________________________________________________________________ (3) SEC USE ONLY ___________________________________________________________________ (4) SOURCE OF FUNDS OO: Funds of investment advisory clients ___________________________________________________________________ (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [X] ___________________________________________________________________ (6) CITIZENSHIP OR PLACE OF ORGANIZATION Tennessee ___________________________________________________________________ :(7) SOLE VOTING POWER : (Discretionary Accounts) NUMBER OF SHARES BENEFICIALLY : 1,336,900 shares OWNED BY EACH REPORTING PERSON ________________________________ WITH :(8) SHARED OR NO VOTING POWER : 1,530,800 shares (Shared) 234,800 shares (None) ________________________________ :(9) SOLE DISPOSITIVE POWER : (Discretionary Accounts) : 1,565,700 shares ________________________________ :(10) SHARED OR NO DISPOSITIVE POWER : 1,530,800 shares (Shared) 6,000 shares (None) ___________________________________________________________________ (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,102,500 shares ___________________________________________________________________ (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11 EXCLUDES CERTAIN SHARES ___________________________________________________________________ (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11 5.8% ___________________________________________________________________ (14) TYPE OF REPORTING PERSON IA ___________________________________________________________________ Note: All shares identified above are shares of the Issuer's class of Common Stock, and the percentage in Row 13 above relates to such class of Common Stock. CUSIP No. 879433100 13D ___________________________________________________________________ (1) NAMES OF REPORTING PERSONS Longleaf Partners Fund I.D. No. 63-6147721 ___________________________________________________________________ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) (b) X ___________________________________________________________________ (3) SEC USE ONLY ___________________________________________________________________ (4) SOURCE OF FUNDS OO: Funds of investment company shareholders ___________________________________________________________________ (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] ___________________________________________________________________ (6) CITIZENSHIP OR PLACE OF ORGANIZATION Massachusetts ___________________________________________________________________ :(7) SOLE VOTING POWER : NUMBER OF SHARES BENEFICIALLY : None OWNED BY EACH REPORTING PERSON ________________________________ WITH :(8) SHARED VOTING POWER : 1,530,800 shares ________________________________ :(9) SOLE DISPOSITIVE POWER : : None ________________________________ :(10) SHARED DISPOSITIVE POWER : 1,530,800 shares ___________________________________________________________________ (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 1,530,800 shares ___________________________________________________________________ (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11 EXCLUDES CERTAIN SHARES [ ] ___________________________________________________________________ (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11 2.9% ___________________________________________________________________ (14) TYPE OF REPORTING PERSON IV ___________________________________________________________________ Note: All shares identified above are shares of the Issuer's class of Common Stock, and the percentage in Row 13 above relates to such class of Common Stock. CUSIP No. 879433100 13D ___________________________________________________________________ (1) NAMES OF REPORTING PERSONS O. Mason Hawkins I.D. No. XXX-XX-XXXX ___________________________________________________________________ (2) CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) (b) X ___________________________________________________________________ (3) SEC USE ONLY ___________________________________________________________________ (4) SOURCE OF FUNDS OO: None ___________________________________________________________________ (5) CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e) [ ] ___________________________________________________________________ (6) CITIZENSHIP OR PLACE OF ORGANIZATION Citizen of United States ___________________________________________________________________ :(7) SOLE VOTING POWER : (Discretionary Accounts) NUMBER OF SHARES BENEFICIALLY : None OWNED BY EACH REPORTING PERSON ________________________________ WITH :(8) SHARED VOTING POWER : None ________________________________ :(9) SOLE DISPOSITIVE POWER : None ________________________________ :(10) SHARED DISPOSITIVE POWER : None ___________________________________________________________________ (11) AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON None (See Item 2) ___________________________________________________________________ (12) CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 11 EXCLUDES CERTAIN SHARES [ ] ___________________________________________________________________ (13) PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 11 0.0% ___________________________________________________________________ (14) TYPE OF REPORTING PERSON IN ___________________________________________________________________ Note: All shares identified above are shares of the Issuer's class of Common Stock, and the percentage in Row 13 above relates to such class of Common Stock. Item 4. Purpose of Transaction Item 4 of Southeastern's previously filed Schedule 13D entitled "Purpose of Transaction" is hereby amended and supplemented by adding the following at the end thereof: On December 15, 2008, Longleaf Partners Fund submitted to the Issuer a shareholder proposal pursuant to Rule 14a-8 under the Securities Exchange Act of 1934, to be voted on by shareholders at the Issuer's 2009 annual meeting. The shareholder proposal requests that the Board take all steps necessary to recapitalize the Issuer's common equity structure into one class of common stock to result in all shares of common stock having one vote per share on all matters. Southeastern and/or one or more of its affiliates and investment advisory clients, including Longleaf Partners Fund (collectively, the "Southeastern Group"), may purchase from time to time in open market or privately negotiated transactions additional Securities, or options or derivatives related thereto. From time to time, one or more members of the Southeastern Group may also hold discussions or otherwise communicate with the Issuer's management, Board and other representatives of the Issuer, as well as other shareholders of the Issuer or other relevant parties, to discuss potential strategic alternatives available to the Issuer, including, but not limited to, a recapitalization, a sale of all or a portion of the Issuer or other matters that may include one or more of the other actions described in subsections (a) through (j) of Item 4 of Schedule 13D. The Southeastern Group may also seek representation on the Board of Directors of the Issuer or pursue other available courses of action. In addition, the Southeastern Group may determine to dispose of all or a portion of its Securities. Except as set forth above, none of the Reporting Persons has any plans or proposals which relate to, or could result in, any of the matters referred to in subsections (a) through (j) of Item 4 of Schedule 13D. Each member of the Southeastern Group may, at any time, review or reconsider its position with respect to the Issuer and formulate plans or proposals with respect to any of such matters. Item 5. Interest In Securities Of The Issuer Item 5 shall be amended and restated as follows: (a) The aggregate number and percentage of Securities to which this Schedule 13D relates is 3,102,500 shares of the common stock of the Issuer, constituting approximately 5.8% of the 53,197,083 shares outstanding. Common % of outstanding Shares Held Common Shares ___________________________________________________________________ Voting Authority Sole: 1,336,900 2.5% Shared: 1,530,800* 2.9% None: 234,800 0.4% Total 3,102,500 5.8% *Shares owned by Longleaf Partners Fund, a series of Longleaf Partners Funds Trust. Dispositive Authority Sole: 1,565,700 2.9% Shared: 1,530,800* 2.9% None: 6,000 0.0% Total 3,102,500 5.8% *Shares owned by Longleaf Partners Fund, a series of Longleaf Partners Funds Trust. (b) Southeastern generally has the sole power to dispose of or to direct the disposition of the Securities held for discretionary accounts of its investment clients, and may be granted the sole power to vote or direct the vote of such Securities; such powers may be retained by or shared with the respective clients for shared or non-discretionary accounts, for which Southeastern generally makes recommendations with respect thereto. Shares held by any Series of Longleaf Partners Funds Trust are reported in the "shared" category. (c) Transactions in the Securities during the past sixty days are attached as Schedule II. (d) The investment advisory clients of Southeastern have the sole right to receive and, subject to notice, to withdraw the proceeds from the sale of the Securities, and the sole power to direct the receipt of dividends from any of the Securities held for their respective accounts. Such clients may also terminate the investment advisory agreements without penalty upon appropriate notice. Southeastern does not have an economic interest in any of the Securities reported herein. (e) Not applicable. SIGNATURES After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: December 15, 2008 SOUTHEASTERN ASSET MANAGEMENT, INC. By /s/ Andrew R. McCarroll _______________________________ Andrew R. McCarroll Vice President & General Counsel LONGLEAF PARTNERS FUND By Southeastern Asset Management, Inc. By /s/ Andrew R. McCarroll _______________________________ Andrew R. McCarroll Vice President & General Counsel O. MASON HAWKINS, Individually /s/ O. Mason Hawkins ________________________________ Joint Filing Agreement In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, the persons or entities named below agree to the joint filing on behalf of each of them of this Amendment No. 14 to Schedule 13D with respect to the Securities of the Issuer and further agree that this joint filing agreement be included as an exhibit to this Amendment No. 14 to Schedule 13D. In evidence thereof, the undersigned hereby execute this Agreement as of December 15, 2008. Southeastern Asset Management, Inc. By: /s/ Andrew R. McCarroll __________________________________ Andrew R. McCarroll Vice President and General Counsel Longleaf Partners Fund By Southeastern Asset Management, Inc. By: /s/ Andrew R. McCarroll __________________________________ Andrew R. McCarroll Vice President & General Counsel O. Mason Hawkins, Individually /s/ O. Mason Hawkins __________________________________ Schedule II Transactions in the Last Sixty Days Transaction Type Date # of Shares Price per Share * Sale 10/24/08 26,000 $22.64 Sale 10/24/08 3,000 $22.64 Sale 10/24/08 5,000 $22.64 Sale 11/12/08 1,100 $27.86 Sale 12/12/08 1,000 $31.14 Sales by a Southeastern private account client pursuant to a letter of instruction, in the ordinary course of business on the American Stock Exchange or through Electronic Communication Networks (ECNs). * Net of commissions 1