Voice API

Voice with the power of programmability

Build a scalable voice experience with the Voice API that’s connecting millions around the world.

Illustration showing how a company can analyze and extract information from a customer phone call.
Illustration showing how a company can analyze and extract information from a customer phone call.

The Voice API that just works

Twilio Voice API capabilities
Twilio Voice API capabilities

Customize your voice call experience

Build a voice experience that you can quickly scale and modify with a wide array of customization options and resources, like our Voice SDK. Unlock actionable insights from your conversations with Voice Intelligence and gain a deep understanding of every customer.  Then, add features like Interactive Voice Response (IVR), voice recording, and speech recognition to create an experience you and your customers will appreciate.

Connectivity you can trust to reach customers

Take advantage of the Voice API’s reliable, high quality connections supported by the Twilio Super Network. With access to global carriers, indefinite scaling, and private connections to the cloud, you’ll be able to start making quality VoIP calls in no time.

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Unlock ROI from your customer calls with Voice Intelligence

Turn voice interactions into actionable insights, enhance understanding of individual customers, and identify trends at scale. Voice Intelligence is your gateway to AI-powered business transformation. 

Voice intelligence turns voice calls into data
Voice intelligence turns voice calls into data

Trust and compliance with voice calling

 Increase your call answer rates by showing customers that you’re a trusted caller. Twilio makes it easy to get verified with Trust Hub.

Keep your customers safe and data secure

Emergency calling

Emergency calling that routes to local public safety answering points.

Secure media

Secure media to encrypt the call media and associated signaling remains private during transmission.

As a verified caller, you improve the reputation of your calls while helping fight unlawful robocalls and caller ID spoofing with:

Use cases

Highly buildable solutions to get you connected

Alerts & notifications

Customize how you notify your customers to their preferences for notifications like password resets, low balance alerts, bill reminders, and fraud warnings.

Call tracking

Measure your business advertising ROI by accurately attributing call sources—be it campaign, search, social, keyword, or display ad—then, route leads to representatives.

Embedded calling

Use Voice SDK to quickly build scalable, WebRTC-powered voice applications with uniform performance across all browsers and devices.

Global conferencing

Add multi-party calling experiences, global dial-in support, and support for up to 250 participants with included PCI and HIPAA compliance for your customers’ privacy.

Masked calling

Communicate seamlessly and protect the sensitive data of both you, and your customers, with the Voice API’s temporary phone number proxies.

Interactive Voice Response (IVR)

Increase customer engagement and reduce operation costs with a scalable IVR system that can respond to commands, build text-to-speech experiences in hundreds of languages, and more.

Need help building? No problem.

Work with one of our trusted partners to get coding support or explore a pre-built voice solution.

Work with Twilio Professional Services to set up global call tracking for your company
Work with Twilio Professional Services to set up global call tracking for your company

“We got lucky that we were able to identify a great partner in Twilio, and we were able to move exceptionally fast.”

Santiago Garces CIO, City of Pittsburgh

“Our goal isn’t to reduce the call volume—it’s to increase our ability to answer the call volume. We want to be able to talk to everyone who wants to talk to us, and we need centralized, efficient, and seamless technology to do that.”

Rachel Krausman Senior Director, 211

“We made a bet on Twilio as our long-term technology partner , and we’ve quite literally never had a single issue.”

Marcelo Oliviera VP of Engineering, Luma

Pricing that reflects your business needs

Build the engaging call experience you’ve always wanted without worrying about the price. Only pay for what you use, no commitments necessary.

Frequently asked questions about Twilio Voice API