Utilization of Fiber Optic Network in Support of Voip Infrastructure: Case Study of Implementation at State Polytechnic of Malang (A. L. Prasetya, F. Arinie, & M. Syirajuddin S , Trans.). (2024). West Science Information System and Technology, 2(03), 328-334. https://doi.org/10.58812/wsist.v2i03.1250