Sunrise Communications AG is a Switzerland-based company, operating in the telecommunications industry. The Company operates through three business segments: Residential customers, Business customers and Wholesale, Infrastructure and Support functions. Residential customers provides fixed-line and mobile services to residential end customers as well as sales of handsets. Business customers and Wholesale: provides a full range of products and services, from fixed-line and mobile communications to Internet and data services as well as integration services to different business areas: small office and home office, small and medium-size managed enterprises and large corporate clients. The wholesale product portfolio covers voice, data, Internet and infrastructure services such as carrier and roaming services. Infrastructure and Support functions activities comprise support units such as network, IT and operations as well as staff functions like finance, human resources and strategy.