Exhibit 99.1 JOINT FILING AGREEMENT THIS JOINT FILING AGREEMENT (this "Agreement") is made and entered into as of this 14th day of February 2005, by and among Carlos Slim Helu, Carlos Slim Domit, Marco Antonio Slim Domit, Patrick Slim Domit, Maria...Joint Filing Agreement • February 14th, 2005 • Orient Star Holdings LLC • Telephone communications (no radiotelephone)
THIS JOINT FILING AGREEMENT (this "Agreement") is made and entered into as of this 14th day of February 2005, by and among Carlos Slim Helu, Carlos Slim Domit, Marco Antonio Slim Domit, Patrick Slim Domit, Maria Soumaya Slim Domit, Vanessa Paola Slim Domit, Johanna Monique Slim Domit, Inmobiliaria Carso, S.A. de C.V, Orient Star Holdings LLC and Carso Global Telecom, S.A. de C.V.
