AI Voice AgentLive

Every phone call, answered.

Answers and places phone calls on your own numbers, books appointments mid-call and transfers to your team with a spoken briefing.

LB
Laura BennettClinic reception line
00:00
Renggo AI is handling this call
Capabilities

What the AI Voice Agent does

One AI agent on your phone lines, answering and placing calls with your own knowledge, flows and systems.

Your numbers, your carrier

Use the Twilio numbers, SIP trunks or PBX extensions you already have. Twilio bills you directly, with no markup from us.

Books while the caller is on the line

Checks availability, then books, moves or cancels in your booking system mid-call.

Warm transfer with a spoken briefing

When a caller needs a person, your colleague hears a short spoken briefing before the lines are connected.

Calls out, too

Place calls from the dashboard or through the API, for reminders and follow-ups.

How it works

Live in three steps

Connect your line, design how calls should go and review every call your agent handles.

Works with the systems you already run
TwilioSIP trunksPBXOpenAPICalendarCRMBooking systemKnowledge baseMCPYour model keys
See how the platform works
FAQ

Questions about the AI Voice Agent

Anything else? Ask us in your demo.

Can I keep my phone numbers?
Yes. Connect the Twilio numbers, SIP trunks or PBX extensions you already have. Twilio bills you directly, with no markup from us.
Which voice engine does it use?
Choose real-time speech-to-speech, with Gemini Live as the default, or a pipeline of the providers you prefer: speech-to-text such as Deepgram, a language model such as Gemini, OpenAI or Claude, and text-to-speech such as Cartesia or ElevenLabs.
What happens when a caller needs a person?
The agent does a warm transfer: your colleague hears a short spoken briefing before the lines are connected, so no one has to ask twice.
How is it priced?
Voice is billed per minute, pay as you go, with every feature on every account. Your demo account comes with $3 of credit, and no card is required.

See the AI Voice Agent working on your own use case.

Tell us what your customers ask most, and we'll show you the agent handling it in your demo.