SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 ---------------------------------------------- Schedule TO Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Securities Exchange Act of 1934 GRC International, Inc. ---------------------------------------------- (Name of Subject Company) LMN Corporation AT&T Corp. ---------------------------------------------- (Name of Filing Person - Offeror) Common Stock, Par Value $.10 Per Share ---------------------------------------------- (Title of Class of Securities) 361922 10 7 ---------------------------------------------- (CUSIP Number of Class of Securities) Marilyn J. Wasser ---------------------------------------------- Vice President and Secretary AT&T Corp. 32 Avenue of the Americas New York, New York 10013-2412 Telephone: (212) 387-5400 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications on Behalf of Filing Persons) Copy to: Steven A. Rosenblum, Esq. Wachtell, Lipton, Rosen & Katz 51 West 52nd Street New York, New York 10019 Telephone: (212) 403-1000 ---------------------------------------------- CALCULATION OF FILING FEE --------------------------------------------------------------------- ===================================================================== TRANSACTION VALUATION AMOUNT OF FILING FEE --------------------------------------------------------------------- Not Applicable Not Applicable ===================================================================== [ ] Check box if any part of the fee is offset as provided by Rule 0-11(a)(2) and identify the filing with which the offsetting fee was previously paid. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing. Amount Previously Paid: None. Form or Registration No.: Not applicable. Filing Party: Not applicable. Date Filed: Not applicable. [ ] Check box if any part of the fee is offset as provided by Rule 0-11(a)(2) and identify the filing with which the offsetting fee was previously paid. Identify the previous filing by registration statement number, or the Form or Schedule and the date of its filing. Amount Previously Paid: None. Form or Registration No.: Not applicable. Filing Party: Not applicable. Date Filed: Not applicable. [X] Check the box if the filing relates solely to preliminary communications made before the commencement of a tender offer. Check the appropriate boxes below to designate any transactions to which the statement relates: [ ] third-party tender offer subject to Rule 14d-1. [ ] issuer tender offer subject to Rule 13e-4. [ ] going-private transaction subject to Rule 13e-3. [ ] amendment to Schedule 13D under Rule 13d-2. Check the following box if the filing is a final amendment reporting the results of the tender offer: [ ]