Teléfonos de México, S.A. de C.V.,
JPMorgan Chase Bank, N.A.,
F OURTH S UPPLEMENTAL I NDENTURE
Dated as of January 31, 2006
8.75% Senior Notes due 2016
TABLE OF CONTENTS
Note: This table of contents shall not, for any purpose, be deemed to be a part of the Indenture, as amended, supplemented and
otherwise modified by this Fourth Supplemental Indenture.
FOURTH SUPPLEMENTAL INDENTURE, dated as of January 31, 2006, between Teléfonos de México, S.A. de C.V., a
sociedad anónima de capital variable organized and existing under the laws of the United Mexican States (“Mexico”) (herein
called the “Company”), having its principal office at Parque Vía 190, Colonia Cuauhtémoc, 06599, Mexico, D.F., Mexico, and
JPMorgan Chase Bank, N.A. a national banking association duly organized and existing under the laws of the United States of
Section 101. Provisions of the Base Indenture.
Section 102. Definitions.
GENERAL TERMS AND CONDITIONS OF THE NOTES
Section 201. Designation and Principal Amount.
Section 202. Legal Holidays.
Section 203. Denominations.
Section 204. Computation of Interest.
Section 205. ISIN Numbers.
Section 206. Registration of Transfer and Exchange.
Section 207. Payment Currency.
Section 208. Forms Generally.
Section 209. Form of Trustee’s Certificate of Authentification
Section 210. Maintenance of Office or Agency
Section 301. Separability of Invalid Provisions
Section 302. Execution in Coun