Deploy seamless communication experiences with developer-friendly APIs, transparent pricing, and scalable infrastructure built for global voice applications.
Whether you’re adding voice to your product, launching a contact center, or building a voice AI agent, Quantrova gives you the control and performance to move fast globally with low-cost pricing. Use our flexible Voice APIs to power customer calling, recording and real-time call flows.
Full programmatic control over PSTN voice services in 140+ countries. As a licensed carrier, we deliver secure, compliant, and reliable infrastructure. So you can scale your voice application as you grow with confidence.
Voice traffic stays on a private backbone with AI and telephony infrastructure co-located for faster response times. With PoPs in 9 regions, round trip time stays under 150 ms so your IVRs and AI voice agents feel instant for every caller.
Usage-based pricing with no hidden fees, no third-party markups, and no upfront investment in infrastructure. You get predictable billing that scales with your needs. 50%+ cost savings when switching from other CPaaS providers.
Quantrova Voice API gives developers everything they need to build scalable, reliable and programmable voice infrastructure, including AI powered call flows.
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With Quantrova REST APIs, your team can create dynamic call flows, connect AI workflows, and build programmable voice experiences without deep telephony complexity. Move from prototype to production with clear developer resources, scalable infrastructure, and reliable support.
Start building with transparent, usage-based pricing designed for real-time voice applications. Scale your usage with predictable costs, flexible rates, and no unnecessary complexity.
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Quantrova Agent Skills gives developers ready-to-use tools for connecting AI workflows with the Quantrova API. Build voice applications faster, automate integrations, and move from setup to deployment with less manual coding.
No rebuilds. Sub-200ms latency, simpler operations, and predictable costs. Production-ready Voice AI in weeks.
A Voice API is a tool that developers use to make and receive phone calls using an Application Programming Interface (API). A Voice API connects internet-based applications to the Public Switched Telephone Network (PSTN).
To get started, create a Quantrova account. Create an application, buy a number, assign it to your app, and connect it to an outbound voice profile. Then, use our API or SDKs to build and test your voice logic.
Yes. You can use Quantrova Voice API to record calls using supported call recording commands.
Yes. Convert text into natural-sounding speech using the speaktext command. You can learn how to use the speaktext command in our developer center. We leverage Amazon Polly to provide a conversational experience, available across 29 languages and accents.
Voice API usage starts at €0.002 per minute. Quantrova offers discounts as you scale, and when you’re ready to commit to monthly usage, talk to our sales team about custom pricing. For more information on Voice API pricing, visit our pricing page.
You can stream real-time audio to AI models, transcribe conversations on the fly, and route calls based on caller intent. Developers can use Voice APIs to power voice AI agents, automate support workflows, and connect to custom or open-source LLMs.
Explore Quantrova Voice API features, capabilities, and use cases for building reliable programmable voice experiences.
Quantrova’s developer resources help you get started, explore API references, and find guidance for building programmable voice workflows.
Overview of core Voice API concepts, call flows, and setup basics.
Explore the available endpoints and commands used to build Voice API applications.
Learn how webhooks help your application receive real-time call events, status updates, and workflow triggers.
Build voice applications that can manage calls, route traffic, record conversations, and support AI-powered workflows.
View and manage your voice connections through flexible API tools.
Learn what a Voice API is, how programmable voice works, and how developers use it to build modern communication experiences.
Quantrova Voice API helps teams connect and control calls programmatically through flexible voice infrastructure.
