Build A WhatsApp AI Caller | Full Guide August 2025

In this tutorial, you'll learn how to build a WhatsApp Voice AI Agent using Twilio and LiveKit. It demonstrates how to integrate an AI voice agent capable of making and receiving real-time voice calls on WhatsApp—not just handling voice messages (as shown in previous tutorials). This is the first (and currently only) tutorial showing you how to do this. I intentionally did not heavily edit out the mistakes and errors so you can learn how to solve problems. So, I recommend watching the whole video, if you are serious about Voice AI. But if you wanna get straight to the solutions, feel free to jump to the relevant sections (as listed below). Recommended watching speed: 2x LiveKit: https://livekit.io/ n8n: https://n8n.partnerlinks.io/w1l1h5g3zt1m Get 20 Euros of free Hetzner credits: https://hetzner.cloud/?ref=bsofzNyuiHSb This is where you can find all the templates shown in the video: https://sanava-ai.com/resource-hub/ Want me to look into your issue? Book a consultation here: https://cal.com/sanava/1h-consultation Book a free consultation if you would like me to build your Voice AI Agent: https://cal.com/sanava/30mins 𝐉𝐨𝐢𝐧 𝐨𝐮𝐫 𝐕𝐨𝐢𝐜𝐞 𝐀𝐈 𝐜𝐨𝐦𝐦𝐮𝐧𝐢𝐭𝐢𝐞𝐬: Voice AI Discord (over 1k members):   / discord   LinkedIn Voice AI Group:   / 10008267   Facebook Voice AI Group:   / 908425741232407   My email: sanava.limited@gmail.com ☕ 𝐁𝐮𝐲 𝐌𝐞 𝐀 𝐂𝐨𝐟𝐟𝐞𝐞: https://www.paypal.com/paypalme/nours... Timestamps: 00:00 Demo 04:27 Join Our Voice AI Summit 05:00 Overview 13:04 Facebook Account 14:40 Facebook Dev Account 19:43 Troubleshooting FB Business Profile Creation 25:46 Facebook Business Account 26:36 Whatsapp Account 28:47 Twilio Account 31:24 Twilio Whatsapp Sender Setup 38:49 Livekit Cloud Account 41:20 Hetzner VPS Setup 43:43 Livekit Agent Python Code 56:38 Livekit SIP Trunk + Dispatch Rule 59:14 TwiML Bin 1:06:35 No Call Button Issue & Solution 1:09:10 Switching to my Verified Twilio Account 1:13:52 Twilio Call Recording 1:15:23 Separate Files for Greeting Message & Prompt 1:27:15 Where You Can Get Help 1:28:20 Limit Call Duration 1:37:03 Limit Number of Calls #whatsapp #voiceai #tutorial #n8n #twilio #whatsappaicaller #whatsappaiagent #livekit #whatsappbusiness #twilio #openai #realtimeapi