Intelligent Network & Service Assurance (iNOC) is a knowledge-driven and AI-powered O&M solution that helps CSPs transform human-dominant operations into real-time assurances with closed-loop automation. With AI and machine learning algorithms, iNOC performs closed-loop network fault management spanning from self-monitoring, self-discovery, self-analysis, to self-healing, and brings proactive customer care based on service impact analysis and service level management, to assure network availability and service quality while delivering excellent customer experience.