3. Capital Investment Notes : 1 Figures for NTT East and NTT West include figures for Optical Access Network Investment.   2 Figures for the capital investment in optical subscriber lines for NTT East and NTT West which were included in Voice Transmission have been recategorized under Leased Circuit, and the same adjustments have been made to figures for the year ended March 31, 2006. Copyright (c) 2007 Nippon telegraph and telephone corporation