Evolution of IMS Voice Services in 6G Networks. International Journal of Engineering and Computer Science, india, v. 14, n. 11, p. 27844–27856, 2025. DOI: 10.18535/ijecs.v14i11.5304. Disponível em: https://ijecs.in/index.php/ijecs/article/view/5304. Acesso em: 5 dec. 2025.