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Ayyaz Zafar
Ayyaz Zafar

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Build an AI Voice Agent That Actually TALKS BACK πŸ€–πŸ—£οΈ (Twilio + ElevenLabs Tutorial)

Ever wanted to build an AI that can actually answer phone calls and have a real conversation? πŸŽ™οΈ

In this Part 2 of my AI Voice Agent series, I walk you through connecting ElevenLabs Conversational AI to Twilio to create a fully functional voice agent that can TALK BACK!

πŸ”₯ What You'll Learn

This tutorial covers building a bidirectional audio bridge where:

  • Twilio captures phone audio and streams it to your server
  • Your server forwards audio to ElevenLabs for transcription & AI processing
  • ElevenLabs generates natural speech responses
  • The AI voice is sent back through Twilio to the caller

It's like having your own AI assistant that can answer calls 24/7!

πŸ“š Topics Covered

  • Setting up ElevenLabs Agent
  • Creating & configuring a new AI agent
  • Choosing the right Voice & TTS Model
  • Selecting the best LLM (speed matters!)
  • ⚠️ Critical: Audio format configuration
  • WebSocket connection setup
  • Building the bidirectional audio bridge
  • Handling AI events & transcripts

🎬 Watch the Full Tutorial

πŸ“¦ Resources


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Have questions? Let me know in the comments below! πŸ‘‡

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