PUTRA, Surya Hendra; SULAIMAN, Oris Krianto. PERANCANGAN JARINGAN KOMUNIKASI VOIP (VOICE OVER INTERNET PROTOCOL) MENGGUNAKAN TRIXBOX PADA UNIVERSITAS ISLAM SUMATERA UTARA. CESS (Journal of Computer Engineering, System and Science), [S. l.], v. 4, n. 2, p. 186–190, 2019. DOI: 10.24114/cess.v4i2.14075. Disponível em: https://jurnal.unimed.ac.id/2012/index.php/cess/article/view/14075. Acesso em: 1 jun. 2025.