Uploaded April 2025 | Updated September 2026, 2 days ago
Join Alex & Bianca with special guest Kaelyn Chresfield for a tour of Voice Intelligence and Generative Custom Operators. Sure to be a fun AI-fueled stream!
Join Alex & Bianca with special guest Kaelyn Chresfield for a tour of Voice Intelligence and Generative Custom Operators. Sure to be a fun AI-fueled stream!



![Build your first Twilio Programmable Voice app - Twilio Liftoff Voice
Ready to bring Programmable Voice into your apps? In this video, youll learn how to set up a Twilio phone number to receive calls, respond with a custom greeting, and even forward calls programmatically. We walk you through webhooks, TwiML basics, securing your functions, and making outbound callsโall step by step. Whether youre brand new to Twilio or leveling up your call flow, this tutorial will help you get started fast.
๐ป Sign up for a Twilio account here: https://twil.io/trytwilio-yt
๐ Subscribe for more Twilio updates: https://twil.io/sub-twiliodevs
Key Topics
๐ Handling inbound calls with Twilio webhooks
๐ฌ Responding with TwiML and custom messages
๐ Securing your Twilio Functions
๐ Forwarding and making outbound calls
Learn More:
[Twilio Voice Quickstart Guide]
[Securing Twilio Functions]
[Twilio Phone Number Registration Guidelines]
[Webhooks and TwiML Overview]
Chapters:
0:00 Intro
0:05 Setting up your first call flow
0:45 What are webhooks and TwiML?
1:26 Toolbox: accounts and phone numbers
2:07 Writing the greeting function
2:31 Best practices for function security
3:00 Linking your function to your Twilio number
3:56 Call forwarding with Functions
4:48 Making outbound calls programmatically
5:57 Wrapping up Build your first Twilio Programmable Voice app - Twilio Liftoff Voice](https://i.ytimg.com/vi/UKz-gQHOz8s/mqdefault.jpg)






