Uploaded November 2025 | Updated September 2026, 1 hour ago
Learn how to quickly send your first SMS message with Twilio Functions. Twilio Functions is a serverless environment for building Twilio applications..
Weโll walk you step-by-step through setting up a Twilio Function, deploying your code, and connecting it to your Twilio phone number.
๐ป Sign up for a Twilio account here: twil.io/trytwilio-yt
๐ Subscribe for more Twilio updates: twil.io/sub-twiliodevs
Key Topics:
๐ Getting started with Twilio Functions
๐ ๏ธ Creating and deploying a messaging Function
๐ Connecting phone numbers for automated SMS replies
๐ฌ Using TwiML for customized message responses
Learn more:
Functions in the Twilio Docs: twil.io/lo-messaging-functions
Chapters:
0:00 Intro
0:04 What are Twilio Functions?
0:18 Accessing Functions in Twilio Console
0:33 Creating a new service
0:56 Naming and setting up your Function
1:14 Writing and deploying your Function code
1:28 What is TwiML?
1:40 Saving, deploying, and connecting phone numbers
1:54 Configuring your number to use Functions
2:18 Testing your automated SMS reply
Learn how to quickly send your first SMS message with Twilio Functions. Twilio Functions is a serverless environment for building Twilio applications..
Weโll walk you step-by-step through setting up a Twilio Function, deploying your code, and connecting it to your Twilio phone number.
๐ป Sign up for a Twilio account here: twil.io/trytwilio-yt
๐ Subscribe for more Twilio updates: twil.io/sub-twiliodevs
Key Topics:
๐ Getting started with Twilio Functions
๐ ๏ธ Creating and deploying a messaging Function
๐ Connecting phone numbers for automated SMS replies
๐ฌ Using TwiML for customized message responses
Learn more:
Functions in the Twilio Docs: twil.io/lo-messaging-functions
Chapters:
0:00 Intro
0:04 What are Twilio Functions?
0:18 Accessing Functions in Twilio Console
0:33 Creating a new service
0:56 Naming and setting up your Function
1:14 Writing and deploying your Function code
1:28 What is TwiML?
1:40 Saving, deploying, and connecting phone numbers
1:54 Configuring your number to use Functions
2:18 Testing your automated SMS reply









![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)
