Backhaul refers to connections between a core system and a subsidiary node. An example of backhaul is the link between a network — which could be the Internet or an internetwork that can connect to the Internet — and the cell tower base stations that route traffic from wireless to wired systems. Two backhaul technologies well-suited for mobile Internet access are fiber optic cable and point-to-point microwave radio relay transmissions. Backhaul is "the installation of a dedicated line that transmits a signal to and from an Internet backbone . . . ."