(Revenue Generating Unit,RGUs) refers to the total number of customer relationships that generate revenue for TDC, including customers with subscriptions and customers without subscriptions calculated according to the following general principles: Landline customers who have generated revenue within the last 3 months; prepaid cards used at least once within the last 3 months; Dial-up internet customers who accessed the internet at least once within the last 3 months. TDC's RGU statement includes the number of main products sold by TDC's residential, business and wholesale segments. The number of customers is not equal to the number of subscribers. An enterprise with 100 mobile voice subscriptions from TDC will be included as 100 RGUs in the RGU statement. As regards wholesale customers, a broadband provider with 20,000 Bit Stream Access (BSA) connections from TDC will be included as 20,000 RGUs. For other networks and data connections, the RGU category that is part of TDC's RGU base includes ULL, leased lines, fibre and data connection. Mobile broadband RGUs include mobile data cards and mobile broadband subscriptions. Dual- and triple-play bundles are included as two and three RGUs, respectively, in the total RGU figures. A YouSee TV customer subscribing to the digital TV add-on product YouSee Plus will be included as two TV RGUs. The term 'RGU' does not reflect the number of actual end-users, e.g. an ISDN30 connection counts only as one RGU in TDC's customer base even though this product may involve 30 end-users.