1.Development, production, operation, maintenance and consignment of telecommunications systems, and software and various equipment related to those systems2.Sales and leasing of telecommunications systems, and software and various equipment related to those systems3.Telecommunications business based on Telecommunications Business Law4.Contracting for electrical and telecommunications installations5.Sales and agency business for telecommunications equipment and various telecommunications networking services6.Services of information data processing and provisionProduction and sales of contents such as audio, visual and text media to be provided through telecommunications networks7.Planning, surveys, research, training and consulting on consignments for the above business areas