---
title: "VAPI AI Tutorial - Build an AI Voice Sales Agent (2025 Guide)"
source_url: https://youtu.be/QIqiH02wn1E
captured_at: 2025-11-13
author: "Jesper Rietbergen"
contributor: "ป้าเกษตร"
platform: youtube
---
# VAPI AI Tutorial - Build an AI Voice Sales Agent (2025 Guide)

youtube video by **Jesper Rietbergen**, 135m21s, uploaded 2025-01-29. URL: https://youtu.be/QIqiH02wn1E
Tags: AI agency tools, AI appointment setter, AI receptionist, AI tutorial 2025, AI voice caller, Automation for agencies, Building AI systems, Make.com tools, Vapi AI tutorial, full ai caller tutorial, voice ai tutorial, ai agency, vapi ai, assistant vocal, start an ai automation agency, ai voice calls, phone ai assistant, Google Calendar integration, AI sales, ai cold caller, how to create an ai calle

## Shared in LINE Note+
- 2025-11-13 09:29 by ป้าเกษตร — note: บ้านบ้าน

## Description
In this detailed video, I demonstrate how to build the most advanced AI appointment setter from the ground up using Vapi AI, Make.com, Airtable, Twilio, and Cal.com. This tutorial focuses on creating a transient agent capable of picking up calls, booking appointments, updating conversation logs, and providing an in-depth custom dashboard. You'll learn how to set up the Vapi environment, buy and import a Twilio number, create a successful make router scenario, and use advanced memory and tools for appointment setting. This guide also covers how to effectively handle call data in an Airtable interface and automate booking through the cal.com API, ensuring seamless appointment management. 

🚀 Check the AI Agent Launch Pad: 

📞 Watch this video to build the ultimate Voice AI Cold Caller: 

Work with us:


📷 Let's connect on instagram: 
👨🏻‍💻 Join our Discord community: 
🔔 Subscribe for more tutorials: 
🌐 Resource hub: 

Timestamps:
00:00:00 Introduction and Video Overview
00:02:18 Member Platform and Resources
00:06:16 Setting Up VAPI and Twilio
00:07:20 Creating and Configuring Agents
00:22:17 Testing and Troubleshooting
00:34:37 End of Call Reports and Airtable Integration
00:43:18 Un