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Voice JavaScript SDK: Version 1.x (Deprecated)


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Warning

You're viewing the 1.X version of the Voice JavaScript SDK (formerly called Twilio Client). Click here for information on how to migrate to the 2.X version.


Overview

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The Voice JavaScript SDK allows you to make voice calls to and from a web browser via a TwiML Voice application.

This means you can open inbound and outbound audio connections to Twilio for building soft phones, walkie-talkies, conference calls, click-to-talk systems, and more, all from the browser.

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Info

Want to get started right away? Jump straight in with our Twilio Voice JavaScript Quickstart.

When you include the Voice JavaScript SDK in a web application you get access to these objects:

  • Twilio.Device: This object is your main entry point for creating outbound connections, accepting incoming connections, and setting up your connection event handlers.

  • Twilio.Connection: This object lets you interact with the call as it is happening. You can do things like mute/unmute, disconnect the call, or send DTMF tones using the connection.


Including the JavaScript SDK in your project

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You can also build twilio.js (the JavaScript SDK) from the source code(link takes you to an external page).

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