How to Build AI Voice Callers | Vapi Full Tutorial

How to Build AI Voice Callers | Vapi Full Tutorial

Hey everyone! Today we'll be doing a full demo and tutorial of Vapi, an application and software used to develop voice AI assistants. Personally, it's my favorite platform to use due to its flexibility. Although other alternatives such as Bland AI, Synth Flow, and Air AI exist, I prefer Vapi, especially if you're a developer creating this for other companies or for your own business. The platform allows for extensive customization and robust features. The founders and team behind Vapi are incredibly talented, making the platform even more reliable.

Introduction

Before jumping into the tutorial, I encourage you to go down and check the Google Doc I created for this video. Sign up for Vapi and Make using the links in the bio to follow along with this tutorial. You don't just learn by watching; you learn by doing. By the end of this tutorial, you should have a good understanding of how to create voice AI assistants worth thousands of dollars. This is a highly lucrative skill, so let's get started!

Features Overview

Vapi offers a range of features that make it versatile. Here's a quick overview:

• Dashboard: Provides a broad overview, including total call minutes, call analysis, and more.
• Assistance Tab: Displays all your assistants and allows you to create and edit them.
• Phone Numbers: You can buy a number directly from Vapi or import from Twilio or Vonage.
• Files: Store knowledge-based documents.
• Tools: Connect automations from other platforms like Make and Go High-Level.
• Flows: Allows for structured and predictable conversations.
• Squads: Specializes assistants for specific tasks like tech support or sales.
• Voice Library: Connected with 11 Labs, it allows you to add your own custom voices.
• Call Logs: Keeps a log of all calls and provides transcripts and other details.

Creating an AI Voice Assistant

I will create a customer support representative for my company, Rose AI. The assistant is meant to handle Q&As and customer support questions.

1. Assistant Overview: Basic information such as cost per minute, latency, and more.
2. System Prompt: The core of your assistant. You can use ChatGPT to customize your prompt specific to your use case.
3. Provider and Transcriber: Choose providers like OpenAI for the LLM and Deepgram for transcribing.
4. Functions and Advanced Settings: Enable end-call functions, forwarding numbers, and set advanced settings like response delay and interruption thresholds.

Adding a Knowledge Base

1. Create Knowledge Base: Use Google Docs to create a set of FAQs relevant to your business.
2. Upload to Vapi: Upload the document to the Files tab in Vapi.
3. Configure: Link the knowledge base to your assistant.

Make.com Integration

1. Creating Scenarios: Use Make.com to automate end-of-call functions, like sending data to Google Sheets.
2. Webhooks: Set up webhooks for real-time data transfer.
3. Google Sheets Integration: Add rows to a Google Sheet for data tracking.

Conclusion

By the end of this tutorial, you should be equipped to create fully functional AI voice callers for your company or other businesses. Make sure to subscribe for more in-depth walkthroughs as Vapi continues to develop new features.

Keywords

• Vapi
• AI voice assistants
• Customer support
• Make.com
• Knowledge base
• Automation

FAQ

Q: What is Vapi used for? A: Vapi is used to develop voice AI assistants, particularly useful for customer support and automations.

Q: Is Vapi better than other alternatives? A: While alternatives like Bland AI, Synth Flow, and Air AI exist, Vapi is preferred for its flexibility and robust features, making it particularly valuable for developers and businesses.

Q: How can I create a knowledge base for my AI assistant? A: Use Google Docs to create a set of relevant FAQs and upload it to the Files tab in Vapi.

Q: Does Vapi integrate with other platforms? A: Yes, Vapi can connect with platforms like Make.com and Go High-Level for automations and additional functionalities.

Q: Which LLM provider is recommended for Vapi? A: OpenAI is generally the best for consistent and reliable performance.

Q: What if I'm outside the US or Canada? A: You can import numbers from Twilio or Vonage.