What Retell AI does
Retell AI is a platform for building AI voice agents that automate phone calls at scale. Its agents hold natural, human-like conversations with low latency and can take real actions during a call, such as booking appointments, transferring to a human, or processing requests.
Key capabilities
- Natural voice conversations with roughly 600ms latency
- Real-time function calling for booking, payments, and call transfers
- A drag-and-drop framework for designing call flows
- Knowledge base with streaming retrieval (RAG), batch calling, and post-call analysis
- Multi-channel support across voice, chat, SMS, and API, with CRM and telephony integrations
Who it's for
Retell AI is built for businesses that run sales, support, and scheduling over the phone, including healthcare, financial services, insurance, logistics, home services, retail, and hospitality. It targets mid-market and enterprise teams that need AI agents to handle complex, multi-turn, inbound and outbound calls.