Nokia Corporation is a telecommunications equipment manufacturer. It is headquartered in Keilaniemi of Espoo, Finland, and is known for its range of mobile phones. Nokia also produces mobile phone infrastructure and other telecommunications equipment for applications such as traditional voice telephony, ISDN, broadband access, professional mobile radio, voice over IP, wireless LAN and a line of satellite receivers.
Nokia provides mobile communication equipment for every major market and protocol, including GSM, CDMA, and WCDMA.