How to Connect ElevenLabs Conversational AI to Twilio - Full Code Tutorial

Learn to programmatically integrate ElevenLabs Conversational AI with Twilio for both inbound and outbound phone calls in this comprehensive 36-minute tutorial. Master the complete setup process including ElevenLabs and Twilio configurations, JavaScript code implementation on Replit, authenticated API requests, and custom variable passing. Explore the architecture behind phone call systems and discover how to trigger outbound calls using Make.com automation. Follow along with detailed code walkthroughs covering multiple use cases, from basic integration to advanced custom overrides that allow dynamic agent behavior. Set up environment files, configure webhook endpoints, deploy live servers, and test both inbound and outbound call functionality. Access practical demonstrations of real phone calls, step-by-step Make.com module configuration, and complete code examples available through GitHub. Gain hands-on experience with modern AI voice technology integration while building scalable telephony solutions that can be customized for various business applications.

Syllabus

00:00 I outline what I will show you/ give you in this video
01:06 Demo of an outbound call triggered from make.com
03:20 Overview of all files in the Replit code
04:21 Authenticated vs Unauthenticated api calls
04:39 Elevenlabs settings for authenticated api calls
06:57 Custom overrides/ custom values into agent
08:02 Going over code in detail
13:00 Elevenlabs settings to work with Twilio
14:10 Architecture of how phone call is made
23:00 Architecture of how make.com places calls and passes custom values
25:27 Setting up ENV file
26:35 Twilio settings for inbound calls
27:36 Deploying Replit Server to make it live
30:45 Demo of inbound call
31:20 Setting up the make.com module for triggering outbound calls
33:18 Demo of outbound call
33:34 Recap of all we covered in the video
34:37 How to contact me to build this for you