NEW YORK (Standard&Poor's) April 2, 2007--Standard&Poor's Ratings Services said today that the ratings and outlook on San Antonio, Texas-based regional bell operating company AT&T Inc. (A/Negative/A-1) are not affected by the company's announcement that it is in negotiations for a potential indirect investment in Telecom Italia SpA. AT&T Inc. is negotiating to buy a one-third share in Olimpia SpA, which owns 18% of Telecom Italia's ordinary shares. This transaction is predicated on an equally-sized investment to be made by America Movil S.A.B. de C.V. in Olimpia. While terms of the transaction have not been fully disclosed, Standard&Poor's estimates that AT&T's purchase price for this stake would be approximately $1.6 billion. This is based on