AI that picks up the phone.
Deploy voice agents that answer calls, place them, and resolve real conversations — grounded in your knowledge base, connected to your tools, and live on a real phone number in minutes.
Hi, I need to reschedule my appointment for Friday.
Of course — I see your 2pm slot. Would 11am Thursday work instead?
Yes, that's perfect.
Built for real calls
Everything a production voice agent needs — model stack, telephony, grounding, and guardrails — in one place.
Real-time voice
Sub-second turn-taking — ~480ms directional — so conversations feel natural, not transactional. Deployed on Pipecat for low-latency streaming audio.
Phone & SIP numbers
Bind agents to real phone numbers over Twilio or SIP. Numbers attach through a join layer with optional LiveKit dispatch metadata.
Inbound & outbound
Answer incoming calls 24/7 or place outbound calls to follow up on leads. The same agent logic powers both directions.
Knowledge-grounded
Every answer is grounded against a vector knowledge base via RAG — files, documents, and URLs — so agents speak from your truth, not guesses.
Agentic tool use
Agents call your APIs mid-conversation to book appointments, update records, and look things up — then continue the call seamlessly.
Deterministic guardrails
Pair open-ended reasoning with deterministic guardrails so agents stay on-script, on-brand, and inside the boundaries you set.
A call, end to end
From the moment the phone rings to a resolved outcome — every step runs in real time.
Caller dials in
An inbound call hits a Twilio or SIP number bound to your agent. The agent picks up instantly and starts streaming low-latency audio through Pipecat.
Agent understands & retrieves
Speech-to-text transcribes the caller, the LLM reasons over intent, and RAG pulls grounded answers from your knowledge base in real time.
Agent acts & hands off
The agent calls your tools to book, update, or look up — then resolves the call or hands off to a human when the conversation needs one.
Your stack, your voice
Compose every agent from an LLM, speech-to-text, and text-to-speech — each configurable per agent, and multilingual out of the box.
Choose the reasoning model per agent and tune voice, personality, and system prompt.
Speech-to-text turns the caller into text the agent can reason over, in real time.
Text-to-speech gives every agent a configurable voice that matches your brand.
Put an AI agent on the phones today.
Spin up your first voice or chat agent in minutes. Bring your knowledge, connect your tools, go live.
- No credit card required
- Free to start
- Live in minutes