WULAN, alya; RAHMAN, R.; DESVI. Security Analysis of the VoIP (Voice Over Internet Protocol) System. International Journal of Smart Systems, [S. l.], v. 1, n. 3, p. 105–116, 2023. DOI: 10.63876/ijss.v1i3.69. Disponível em: https://ijss.etunas.com/index.php/ijss/article/view/69. Acesso em: 12 nov. 2025.