Voice API

It's not just about making phone calls.

Lead the conversation and deliver a better customer experience with the Hayyul 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.

See how our Voice API helps businesses like yours succeed.

Our Voice API enables the creation of automated and personalized customer interactions with AI

From voice bots to customized conversational AI and analytics, Hayyul has you covered with tools, guides, and seamless integrations to differentiate your customer experiences while optimizing workflows.

  • Add voice control and enable easy-to-use self-service in more than 120 languages with Automatic Speech Recognition.
  • Easily integrate with third party vendors in real time, including artifical intelligence bots.
  • AI Studio is a low-code conversation design tool that empowers developers and non-developers alike to create and deploy customer engagement experiences that operate in natural language.

Extend calling experiences globally while keeping users on your brand's platform

Keep users engaged on your mobile app, browser, and contact center platform with WebRTC click-to-call global connectivity and extensibility to the PSTN. Enjoy seamless integrations to our Voice API and AI building blocks.

  • Make and receive calls globally within the browser-based contact center application and easily add remote agents.
  • Augment your conversational commerce experiences by enabling customers to call and message within a a mobile app or website.
  • Integrate voice and social channels to personalize interactions and build context.

Extend, customize, and differentiate your customer experiences

Our Voice API enables an interconnected suite of solutions that extends IP Voice and PSTN calling experiences on a global scale and in multiple languages.

  • Deliver seamless communications with Programmable SIP. Bring Hayyul Voice API functionality, such as multichannel recording, IVR, Text to Speech, WebSocket connectivity for AI integrations, and the power of contextual conversations to your platform.
  • Power intelligent customer experiences in the Contact Center. Enable a wide range of voice and AI interactions, including IVRs, alerts, and more.


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

Voice Quality Engine

Deliver high-quality voice experiences through the low latency, feature-rich, carrier-grade Hayyul network.

WebRTC Enabled

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

Learn how key industries are using Hayyul APIs today

Contact US

Our dedicated team is here to assist you, whether you're seeking information about our services, need technical support, or want to explore a partnership. Contact Hayyul today and experience the assurance of a secure digital future.