The document discusses the calculation of universal service obligation (USO) costs in Austria. It outlines Austria's USO, which includes access at a fixed location, directories, and public payphones. It then describes the cost calculation scheme used, which involves determining avoidable costs, forgone revenues, and indirect benefits to calculate the net costs. The main reasons for USO deficits in Austria are the low subscriber densities and high costs in some rural areas. The document also briefly discusses the options for financing USO and benchmarks from other European countries.