Perform physical changes based on design specifications: inside building fiber, copper cabling via existing raceway, install rack- or wall-mount devices, jumper fiber, copper cables to devices / FDPs / patch panels, install/remove device SFPs, punch down low-voltage cables (66/110 blocks, RJ11 for phones, wire-wrap), etc. using applicable tools to include test fiber optic cables, toggle and test automation points at cutouts, test terminals, trace cables; ringtone if cable without tone, butt set for cable with tone, conduct loopback tests to remote ends, test radio feedline for coax and waveguide on device-based, electronic and application tests.