Nokia is one of the world's leading makers of the telecommunications infrastructure of mobile phone networks. Once a leading mobile phone handset manufacturer, its current businesses are Nokia Networks, which develops and deploys network infrastructure, and Nokia Technologies, its research and development and intellectual property rights unit. First incorporated in the Finnish city it's named after, Nokia has operations and customers in more than 140 countries. The company redoubled its commitment to telecom infrastructure with its acquisition the telecom-equipment maker Alcatel-Lucent. The deal finalized in early 2016.