Calix, Inc. (Calix) is a provider in North America of broadband communications access systems and software for fiber- and copper-based network architectures that enable communications service providers (CSPs) to connect to their residential and business subscribers. The Company enables CSPs to provide a range of revenue-generating services, from basic voice and data to broadband services, over legacy and access networks. Calix focuses solely on CSP access networks, the portion of the network, which governs available bandwidth and determines the services that can be offered to subscribers. The Company develops and sells carrier-class hardware and software products, which it refers to as its Unified Access Infrastructure portfolio. On February 22, 2011, Calix completed its acquisition of Occam Networks, Inc. In November 2012, the Company completed acquisition of Ericsson's fiber access assets and the implementation of a Global Reseller Agreement between the two companies.