Calix, Inc. operates as a supplier to the telecommunications industry, offering a portfolio of broadband communications access systems, software, and managed services. The company's core offerings include the Calix Cloud platform, which provides analytics and network automation, and the Calix One platform for subscriber management. On the hardware side, Calix develops optical network terminals (ONTs), broadband access nodes, and Wi-Fi systems under the GigaSpire brand. By combining networking equipment with cloud-based software, Calix enables service providers to upgrade their network infrastructure and deploy managed services to residential and business subscribers. The company generates revenue through a mix of hardware sales, software subscriptions, and professional services.