NETWORK ASPECTS OF IP TELEPHONY. International Journal of Advance Scientific Research, [S. l.], v. 3, n. 10, p. 221–232, 2023. DOI: 10.37547/ijasr-03-10-36. Disponível em: https://sciencebring.com/index.php/ijasr/article/view/462. Acesso em: 30 aug. 2025.