The internship program covered Central Office, Digital Subscriber Line (DSL), and Fiber To The x (FTTx) configurations. I got to learn the how to install primary and secondary cables as well as learn about UTP and fiber cabling and their respective connectors. In addition, I got to understand where telephone lines originate, where they terminate, the usage of every equipment crucial for the operation of a Central Office. The internship also gave a better understanding how different blocks placed in separate rooms are connected together and work collectively so users can benefit from services offered by the Central Office.