Investigating the Role of Cloud-Based VoIP Systems in EnhancingMultichannel Contact Center Performance and Resilience. ISCSITR- INTERNATIONAL JOURNAL OF ENGINEERING AND TECHNOLOGY - ISSN (online): 3067-7351, [S. l.], v. 6, n. 1, p. 13–16, 2025. Disponível em: https://iscsitr.in/index.php/ISCSITR-IJET/article/view/ISCSITR-IJET_2025_06_01_002.. Acesso em: 5 feb. 2026.