Nokia
Nokia is currently the world's largest manufacturer of mobile telephones, with a global device market share of approximately 39% in Q3 of 2007. Nokia produces mobile phones for every major market segment and protocol, including GSM, CDMA, and W-CDMA (UMTS). The corporation also produces telecommunications network equipment for applications such as mobile and fixed-line voice telephony, ISDN, broadband access, voice over IP, and wireless LAN.
Whether your business is large or small, Nokia offers a suite of security products designed to enable mobile voice and more - a fundamental layer of security infrastructure with firewall and VPN capabilities and client and management capabilities that extend applications to devices securely. They are experts in integrated security, Nokia firewall/VPN appliance, Nokia Virtual Firewall, platform management, Nokia intrusion prevention and Nokia IP VPN.
http://www.nokia.com