Ciena's telecom equipment gathers a thousand points of light and hurtles down fiber optic cables at the same time. By transmitting multiple light signals simultaneously the company's transport and switching equipment increases the capacity of long-distance fiber-optic networks. It also sells optical transport systems for metro and enterprise wide-area networks, as well as broadband access products that enable communications companies to deliver internet protocol (IP) services, such as VoIP, IP video, and DSL. Ciena serves telecommunications service providers, cable companies, large enterprises, and government entities.