Voice API

Lead the conversation and deliver a better customer experience with the Vonage programmable Voice API. Personalize the WebRTC and PSTN calling experience with user context and data at your fingertips. Innovate, streamline, and scale with flexible voice capabilities—all on a reliable, high quality global carrier network billed on a per-second basis so you pay only for what you use.
Try it free

See how our Voice API helps businesses like yours succeed.

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Turn phone calls into a marketing machine

Record and capture important data to measure and improve your lead marketing efforts.
  • Track insights and metadata such as who called, dialed number, call length, and more
  • Increase leads and improve lead quality by advertising virtual phone numbers in addition to web forms and email
  • Route calls to the right agent the first time based on select tracking criteria
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Put callers in control

Add a simple interactive voice response script with just a few lines of code.
  • Integrate self-service to provide a faster experience and allow agents to address higher-value inquiries
  • Capture call event data and voice recordings to gain new insights
  • Keep it local and improve customer engagement by advertising local or toll-free numbers
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Get through when it matters

Deliver critical, global alerts through phone calls.
  • Grow your business with viral adoption
  • Increase the chances of your alert being heard through persistent phone calls
  • Sync with a simple IVR application to acknowledge receipt
  • Deliver alerts to backup contacts if no acknowledgment is detected
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Keep it confidential

Protect customer identities on voice calls to improve privacy and avoid off-platform transactions.
  • Protect users’ privacy by connecting them without revealing phone numbers
  • Track, record, and analyze calls to gain new insights
  • Keep transactions where they belong—on your platform
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Integrate with third-party vendors in real time, including artificial intelligence bots. Learn more
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Voice Quality Engine

Deliver high-quality voice experiences through the low latency, feature-rich, carrier-grade Vonage network. Learn more
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WebRTC Enabled

Conduct calls over IP and PSTN with powerful programmable voice features to improve business outcomes and user experiences.

See how businesses like yours are using Vonage APIs today.

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Winners standing on the podium GLOBAL RESEARCH STUDY
Going for CX Gold with Multichannel Communications
Does your business have what it takes to deliver a winning customer experience? We asked 5,000 consumers across the globe to rank their favorite communication channels. Find out what they told us in our latest global report.

Try it free

Start developing now with free credit. No credit card required.
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Speak with an expert.

US toll-free number: 1-844-365-9460
UK toll-free number: +44 800 086 9444