LEMA, H.; SIMBA, F.; MUSHI , J. Security Enhancement of SIP Protocol in VoIP Communication. Journal of ICT Systems, [S. l.], v. 1, n. 2, p. 71–92, 2023. DOI: 10.56279/jicts.v1i2.32. Disponível em: https://jicts.udsm.ac.tz/index.php/udsm/article/view/32. Acesso em: 8 sep. 2024.