a) Deutsche Telekom defines EBITDA as profit/loss from operations excluding depreciation, amortization and impairment losses. For a detailed explanation of pro forma figures, special factors affecting EBITDA, adjusted EBITDA, the adjusted EBITDA margin as well as special factors affecting profit or loss and the adjusted net profit, please refer to the interim Group report.

b) One mobile card corresponds to one customer. The total was calculated on the basis of precise figures and rounded to millions. Changes are calculated on the basis of figures shown. Organic customer growth is reported for better comparability: Orange Nederland and SunCom Wireless customers were also included in the historic customer base.

c) Telephone lines in operation excluding internal use and public telecommunications, including wholesale services. International includes Eastern Europe with T-Hrvatski Telekom, Slovak Telekom, and Magyar Telekom including subsidiaries Makedonski Telekom AD (formerly Maktel) and Crnogorski Telekom. T-Online France and T-Online Spain were deconsolidated in 2007 and are not included here. Prior-year figures have been adjusted accordingly.