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Vonage / Voice

Delight and inspire with interactive voice response (IVR)

The best voice experience for your customer

Nexmo is now called Vonage, but there are still references to Nexmo in our URLs, code snippets and message templates.

Bring personalized call experiences – such as IVR, WebRTC and PSTN calling – to your customers quickly and affordably with Vonage's Voice API. Flexibly innovate, streamline and scale voice capabilities based on user data. All on a reliable, high-quality global carrier network in which you only pay what you use.

How it works

This API allows you to build high-quality and secure voice applications with granular control, speed and flexibility. Use your preferred programming language. With this API you can integrate in real-time with AI bots and voice analysis systems.

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GDPR compliance: Yes
SLA: Standard via the KPN Developer Portal


Coverage: Global
Data center location: US & EU
End-to-end encryption: Yes
Scalable infrastructure: Yes

ISO/IEC 27001:2013, 27017:2015 & 27018:2014
ISO 22301:2012 & 31000:2009
SOC 2 & 3 
NIST 800-171

This API helps you to...

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Improve user privacy

Connect users by phone without disclosing their phone numbers to improve privacy and avoid off-platform transactions.

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Offer interactive phone responses

Add voice menus to your call flow with a simple interactive voice response (IVR). No need to build and deploy a traditional IVR system.

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Increase revenue through call data

Track call metadata for lead generation and marketing campaigns.



Easy integration with third-party vendors in real-time, including artificial intelligence bots.

High-quality voice engine

Deliver high-quality voice experiences using Vonage's low latency, feature-rich, carrier-grade network.

Global network

Connecting is possible with virtually anyone in the world via this API's global carrier network.

What it costs

Inbound (per minute). All prices may be subject to change at any time. Available only where LVNs are available.


What it costs

Outbound mobile (per minute). All prices may be subject to change at any time.


What is costs

Outbound fixed (per minute). All prices may be subject to change at any time.


Need help?

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