Reach further with Text-To-Speech

With our extensive language coverage, you can speak to customers all over the world on a local level, communicating in their native language.
Try it free
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A richer voice experience.

Speech Synthesis Markup Language (SSML)

Programmatically control the pronunciation of text, including punctuation, pausing, emphasis, volume, pitch, rate of speech, phonetic pronunciation and context disambiguation. Learn more

More languages

Extensive coverage to reach over 4.5 billion people with 40 supported languages including: English, Mandarin, Arabic, Spanish, Hindi and more. Learn more

Voice Quality engine

Deliver high-quality voice experiences using our reliable global carrier network. Learn more

"We look forward to continuing to push the boundaries of what's possible in customer communications with [Vonage APIs]." —Alicia Teo, Customer Experience Manager, ZALORA

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Voice Broadcast

Engage a large audience efficiently and cost effectively.

Reach customers with marketing or other broadcast messages with outbound phone calls and optional IVR feedback.
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Let your callers choose.

Add a simple Interactive Voice Response (IVR) script to your existing applications.
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Voice Alerts

Grow your business with viral adoption

Enable worldwide delivery and receipt of critical alerts via phone calls.
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Campaign Tracking

Give your call centre agents an audible heads-up

Use a call whisper to tell your call centre agent which campaign the call concerns before they greet the caller.
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Two-Factor Authentication

Easily add a layer of security

Verify users by reaching their mobile device with SMS or voice codes.
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Passwordless Authentication

Convenience without compromising security

Replace static passwords with single-use codes sent over SMS, voice or push.

Try it free

Start developing now with free credit. No credit card required.
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