Nokia provides telecom equipment and services that are used to build wireless and fixed-line networks. It operates in four segments. The mobile networks segment, which sells equipment and services to telecom carriers to power public wireless networks, is the largest, followed closely by network infrastructure. Network infrastructure focuses on fixed networks, including infrastructure, solutions, and components for IP networks, optical networks, and submarine networks. Cloud and network services is a nascent segment catering to enterprises with as-a-service platforms. Nokia also has a