Telecom Italia S.p.A. (Telecom Italia) provides fixed and mobile telecommunications services. In Italy, the company offers a wide range of telephone and data services on fixed-line and mobile networks including voice, messaging and data, Internet and broadband services for retail customers and wholesale customers. Telecom Italia also operates in the mobile and fixed telecommunications sector in Brazil through the TIM Brasil which offers a comprehensive range of mobile services using UMTS, GSM and LTE technologies. It also operates the Telecom Italia Sparkle group which develops fiber optic networks for wholesale; Olivetti, which provides office products and services for information technology; and INWIT S.p.A, which provides infrastructure for housing radio transmission equipment for mobile telephone networks. Telecom Italia also operates digital multiplexes and provides accessory services and digital signal broadcasting platforms through Persidera. It conducts business in Europe, the Mediterranean Basin and South America. Telecom Italia is headquartered in Milan, Italy.