Frontier provides used and refurbished Cisco VPN 3000 concentrators. The Cisco VPN 3000 series offers best-in-class remote-access VPN devices that provide businesses with unprecedented cost savings through flexible, and high-performance remote-access solutions. The Cisco VPN 3000 series offers solutions for the most diverse remote-access deployments by offering both IP Security (IPSec) and Secure Sockets Layer (SSL)-based VPN connectivity on a single platform. Contact us today or simply request a quote. 866-226-6344