Agentic CCaaS is transforming contact centers from systems that route customer interactions into AI-powered platforms capable of resolving customer needs and executing work across enterprise systems. This 2026 guide explains the technology, business case, governance, voice AI, multi-agent orchestration and leading platforms including NICE, Genesys, Talkdesk, Five9, Zoom, Dialpad, Avaya, Vonage and 8×8.