AI Phone Agent with RetellAI & RAG

This workflow creates a fully functional AI-powered phone agent that integrates RetellAI with n8n. It can automatically handle phone conversations, summarize calls, schedule appointments in Google Calendar, and provide intelligent answers using a Retrieval-Augmented Generation (RAG) system powered by Qdrant and OpenAI embeddings.

It’s designed for businesses that want to automate customer support, appointment booking, and knowledge-based queries through an AI voice assistant.

Key Features

• 🤖 AI Phone Agent – Build, test, and deploy a phone agent using RetellAI (with free $10 credit for testing).
• 🧠 RAG Integration – Retrieve company-specific knowledge from Qdrant Vector Store and answer customer queries with accuracy.
• 📅 Smart Appointment Booking – Automatically schedule events in Google Calendar during calls.
• 📝 Call Summarization – Extract key points, action items, and structured insights from call transcripts.
• 📲 Notifications – Send call summaries directly to Telegram.
• ☁️ Knowledge Base Automation – Upload documents from Google Drive, vectorize them, and keep the database refreshed.
• 🔄 End-to-End Workflow – Includes webhook triggers, structured output parsing, and multi-agent orchestration.