Telefonica Deutschland is a company, which is engaged in the telecommunication industry. The Company offers mobile and fixed-line services providing voice, data and other services to retail and business customers; it also acts as a wholesale provider, offering access to its infrastructure and service capabilities to its wholesale partners. Telefonica markets its products under a multi-brand strategy, its brand portfolio includes O2, FONIC, netzclub, Tchibo mobil and Tuerk Telekom Mobile.