Exhibit 99.7 D.F. King & Co., Inc. 77 WATER STREET, NEW YORK, N.Y. 10005 (212) 269-5550 January , 2003 Mr. Sergio Bravo Treasurer Alestra S. de R.L. de C.V. Avenida Lazaro Cardenas No. 2321, Piso 9 Residencial San Agustin San Pedro Garza Garcia 86260...Letter Agreement • January 15th, 2003 • Alestra • Telephone communications (no radiotelephone) • New York
EXHIBIT 4.10 SUPPLEMENTAL INDENTURE SUPPLEMENTAL INDENTURE, effective as of , 2003, by and between ALESTRA, S. de R.L. de C.V., a corporation duly organized and existing under the laws of the United Mexican States (the "Company"), having its principal...Supplemental Indenture • January 15th, 2003 • Alestra • Telephone communications (no radiotelephone) • New York
January , 2003 EXCHANGE AGENT AGREEMENT The Bank of New York 101 Barclay Street, Floor 8 West New York, New York 10286 Attention: Corporate Trust Administration Ladies and Gentlemen: Alestra, S. de R.L. de C.V. a Mexican Limited Liability Company of...Exchange Agent Agreement • January 15th, 2003 • Alestra • Telephone communications (no radiotelephone) • New York
