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Guide
AI Voice Agents: What They Are and How to Build One
AI voice agents answer and place phone and web calls in a natural voice, using tools to book, qualify and route. Here's how they work and how to build one.
AI voice agents hold natural phone and web conversations, answering, qualifying, booking and routing, using tools to act, not just talk.
What they do
Answer inbound calls, run outbound campaigns, capture leads, book appointments, and hit your systems via function-calling.
How to build an AI voice agent
Write a prompt, pick a voice and provider, add tools, and connect a number. Live in minutes.
Multi-provider by design
Run the same agent on any of five engines and switch without changing your number.
Try it free
Frequently asked questions
What is an AI voice agent?
Software that holds natural voice conversations on phone or web and takes actions via tools.
How do I build one?
Write a prompt, pick a voice and provider, add tools, connect a number, minutes to live.
Can it take actions?
Yes, via function-calling it books, captures leads, transfers, and hits your webhooks.