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Calix, Inc. provides cloud and software platforms, systems, and services for communications service providers to deliver residential and business subscriber services. The company's platforms enable broadband service providers to market, sell, deploy, and support subscriber services including high-speed internet, voice, and video. Calix offers network systems, subscriber systems, cloud-based software, and managed services to telecommunications companies, cable operators, and other communications providers. The company's solutions include fiber access systems, Wi-Fi mesh systems, subscriber management platforms, and cloud-based business support systems. Founded in 1999 and headquartered in San Jose, California, Calix serves communications service providers globally, primarily in North America. The company has transitioned from hardware-focused business to cloud-based software and platform models with recurring revenues. Calix benefits from fiber network deployments driven by government broadband initiatives and demand for high-speed internet. The company faces competition from larger telecommunications equipment vendors, execution risks in business model transformation, and customer concentration. Calix continues to invest in cloud platform development, software innovation, and customer success programs.