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Deutsche Telekom AG - Interim Group report - January 1 to March 31, 2012

41Additional information Glossary. For further definitions, please refer to the 2011 Annual Report and the glossary therein (page 258 et seq.). AT&T transaction. For details on the transaction relating to T-Mobile USA and the effects of the termination of the agreement for the sale of T-Mobile USA to AT&T, please also refer to the 2011 Annual Report (in particular pages 76 and 182 - 183). Bitstream access. Wholesale service used by alternative telephone companies to provide broadband lines. Cash capex. Investments in property, plant and equipment, and intangible assets (excluding goodwill) as shown in the statement of cash flows. Fixed-network lines. Lines in operation excluding internal use and public telecommunications, including IP-based lines. The totals reported in the interim Group management report were calculated on the basis of precise figures and rounded to millions or thousands. Percentages were calculated on the basis of the figures shown. Mobile customers. For the purposes of the interim Group management report, one mobile communications card corresponds to one customer. The totals were calculated on the basis of precise figures and rounded to millions or thousands. Percentages were calculated on the basis of the figures shown (see also SIM card). PTC transaction. For information on the agreement with the French company Vivendi, the Polish company Elektrim and Elektrim’s creditors regarding PTC and its impact, please refer to the 2010 Annual Report (in particular page 48) and the Interim Group Report for the period from January 1 to March 31, 2011 (in particular pages 7 and 64). Pure LRIC – Pure Long-Run Incremental Cost. A costing model for the fixed network and for mobile communications based on a long-run approach. Under this approach, the ideal size of operation (size of an efficient network) is defined for a set output volume (forecast demand) with fixed costs being viewed as vari- able costs in the short run. According to this “Recommendation of the European Commission on the Regulatory Treatment of Fixed and Mobile Termination Rates in the EU” of May 7, 2009, regulated termination rates are based only to a minor extent on network costs. Service revenues. Service revenues are revenues generated by mobile communications customers from services (i.e., revenues from voice services – incoming and outgoing calls – and data services), plus roaming revenues, monthly charges and visitor revenues. SIM card – Subscriber Identification Module card. Chip card that is inserted into a cell phone to identify it in the mobile network. Deutsche Telekom counts its customers by the number of SIM cards activated and not churned. Customer totals include the SIM cards with which machines can communicate automati- cally with one another (M2M cards). The churn rate is determined and reported based on the local markets of the respective countries. Utilization rate. Systems Integration: ratio of average number of hours billed to maximum possible hours billed per period. Visitor.Visitorsarecustomersofinternationalmobilecommunicationsnetwork operators who use voice or data services in a mobile network operated by a company of the Deutsche Telekom Group. The call or the transmitted data is routed via the network of the national company in question and terminated in another mobile or fixed network in the same or another country, or in the national company’s own network.