Connect the principles of telecommunications with the installation and troubleshooting of modern and legacy subscriber services. The Telecom Specialist certificate covers copper-pair networks and fiber-optic technologies, including passive optical networks and fiber to the premises. Study telephone wiring, telecom operations, voice and data networking, Wi-Fi, and fiber installation, testing, and maintenance. Explore how plain old telephone service, DSL, and VoIP are delivered and supported across these environments. This NCTI credential brings together the network and premises knowledge used to understand services across both copper and fiber infrastructure.