With Twilio, you can quickly make and receive voice calls in your application. We provide the docs, code samples, helper libraries, and developer tools you need on your journey. You bring your imagination. Let's build something amazing together.
Take the next steps with Programmable Voice
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Twilio servers
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Your app
from flask import Flask
from twilio.twiml.voice_response import VoiceResponse
app = Flask(__name__)
@app.route("/answer", methods=['GET', 'POST'])
def answer_call():
resp = VoiceResponse()
resp.say("Twilio's always there when you call!")
return str(resp)
See AlsoChat | TwilioWho owns Twilio Inc? TWLO Stock Ownership - TipRanks.comTwilio Help CenterSupport Plans for Text, VoIP & Voice APIs - Twilio | Twilioif __name__ == "__main__":
app.run()
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Twilio's always there when you call!
Take the next steps with Programmable Voice
Get Started
With just a few lines of code, you'll make your first outgoing phone call with the Voice API. Add a few more and your app can respond to incoming callers. Choose your programming language to get started.
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// Download the helper library from https://www.twilio.com/docs/node/install
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const twilio = require("twilio"); // Or, for ESM: import twilio from "twilio";
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// Find your Account SID and Auth Token at twilio.com/console
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// and set the environment variables. See http://twil.io/secure
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const authToken = process.env.TWILIO_AUTH_TOKEN;
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const client = twilio(accountSid, authToken);
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async function createCall() {
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const call = await client.calls.create({
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from: "+15558675310",
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to: "+15017122661",
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url: "http://demo.twilio.com/docs/voice.xml",
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});
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console.log(call.sid);
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}
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createCall();
Build your App
You've got an idea in mind. Let's get it to production.
Pick the docs that are right for you. These short tutorials, sample apps, and API reference docs will get you from dream to HTTP 200 OK.
Advanced Features
Your application is unique, but you're not alone - we've got the building blocks you need to grow and scale. Use Twilio with your current VoIP system, debug call issues, find the right data, and queue and modify calls. Deploy your app with confidence.
Twilio's Voice Insights takes your apps to the next level and helps you target the right improvements. Surface jitter, mean opinion score, and latency issues while monitoring the carrier and hang-up data you need to improve your service.
Build a Conversational IVR using machine learning and natural language understanding with Voice Intelligence and Virtual Agent.
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If you are an Australian Consumer customer, Twilio's Critical Information Summary (CIS) can be found here.
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Product documentationDon't want to code? Create your Voice app with our visual builder
Product documentation