Build an AI Voicemail Agent | Full AI Avatar Tutorial (LiveKit + n8n + Bey)

Описание: In this video, we build a practical AI Voice Agent that completely replaces your iPhone or Android voicemail.

This isn't just a chatbot, it's a real-time intelligent receptionist. It intercepts your incoming calls, detects if they are spam or legitimate, and logs every message into a personal database. It even comes with a "Chief of Staff" mode where you can talk to a 3D Avatar in your browser to get a debrief of your missed calls.

We use LiveKit for the telephony/SIP connection, OpenAI Realtime API for the intelligence, n8n for the backend memory, and Beyond Presence for the visual avatar.

🚀 The Code & Workflows

GitHub Repo (Code + n8n JSON): https://github.com/jb-akp/lk-telephon...

LiveKit (Voice Infrastructure): https://docs.livekit.io/agents/start/...

n8n (Automation Workflows): https://n8n.io/

Beyond Presence (Avatars): https://app.bey.chat/

Timestamps:
00:00 Intro & Final Result Demo
03:52 - Architecture Overview (Phone vs. Web Logic)
05:07 - Project Setup (Python, UV, & Dependencies)
07:14 - LiveKit Cloud Setup & API Keys
11:00 - Phase 1: Building the "Hello World" Agent
14:33 - Phase 2: Provisioning a LiveKit Phone Number
17:04 - Creating the Dispatch Rule (Connecting Number to Code)
20:20 - Coding Context Awareness (Detecting Phone vs. Browser)
26:33 - Phase 3: The Gatekeeper (Building the Spam Blocker)
31:30 - Phase 4: Memory Ingestion (n8n & Google Sheets Workflow)
35:19 - Coding the Transcript Logger & Webhook
41:14 - Phase 5: The Interface (Building the Retrieval Tool)
47:10 - Phase 6: Adding the 3D Avatar (Beyond Presence)
50:22 - Deployment: Forwarding Your Actual Voicemail (*71)
51:42 - The Final Real-World Test