The Ultimate SIP Trunking Guide for AI Voice Agents | Twilio + Vapi

In this video, we’re diving into how you can cut telephony costs for your AI voice agents using SIP trunking. I'll walk through everything step-by-step, from setting up SIP trunks with Twilio, to importing your existing VOIP or local carrier numbers, and connecting them directly to your AI assistant with Vapi. Ready to revolutionize your business with Voice AI? Work With Us 👋 https://esplanade.ai Book a Free AI Discovery Call 📞 https://calendly.com/esplanadeai/discovery-call Connect With Me 🤝 / https://www.linkedin.com/in/jonas-massie-a91775241/ Timeline: 00:00 - Intro 00:31 - Explaination 03:30 - Twilio Outbound SIP Trunk Setup 11:15 - Twilio Inbound SIP Trunk Setup 12:09 - Porting Request for Importing Numbers 13:42 - Conclusion Resources Mentioned 📎: VAPI - https://vapi.ai/?aff=jonas POST REQUESTS - // 1) Endpoint: https://api.vapi.ai/credential Body: { "provider": "byo-sip-trunk", "name": "Twilio Trunk", "gateways": [ { "ip": "your-sip-uri-here" } ], "outboundLeadingPlusEnabled": true } 2) Endpoint: https://api.vapi.ai/phone-number Body: { "provider": "byo-phone-number", "name": "Twilio SIP Number", "number": "+1xxxxxxxxx", "numberE164CheckEnabled": false, "credentialId": "credential id" } // Instrument | @chukibeatz