1. Open manivox.ai and start the interactive demo.
2. Choose a voice, then French, English or Spanish.
3. Enter your details: the agent will greet you by your first name.
4. Call the number shown, and ask for an appointment.

• It answered straight away, and greeted you by name.
• You could interrupt it, and it stopped to listen.
• It told you it was an AI, and it still felt natural.
• It did something: the appointment was confirmed on your screen.

• Busy hours: the phone rings, and nobody is free to pick up.
• Lunchtime and after hours: nobody answers at all.
• Voicemail: the caller has to wait for a callback. How many hang up instead? Nobody counts.
• The caller tries the next business on the list.

General practitioners in the Paris region spend about seven hours a week on the phone, and 45% of the calls they receive are appointment requests (URPS Île-de-France, survey of 3,734 calls, 2010).

• Practice: an empty slot in tomorrow’s diary, and a patient who has found another practice.
• Garage: a service booked with the competitor across the road.
• Hotel: a room booked through a booking site, commission included.
• Social landlord: a leak reported the next morning, when the flat below is already wet.

A Manivox agent answers every call, understands the request and handles it, in the caller’s language. It replies with low latency, inside a normal conversational pause.

In conversation, people reply to each other after a gap of about 200 ms, in every language studied (Stivers et al., PNAS, 2009). A silence of about one second is the most we tolerate before it feels like a problem (Jefferson, 1989). A voice agent has to reply inside that window, or the conversation breaks.

• They can say it in their own words: no menu to learn.
• They can interrupt, and the agent stops to listen.
• They get an answer or a booking, not a promise of a callback.
• They are told they are talking to an AI, and still reach a person when they ask.

• Ears: speech becomes text while the caller is still talking.
• Brain: understands what the caller wants and decides what to do next.
• Voice: a natural voice by Cartesia, the world leader in natural speech.
• Memory: the knowledge base, with the client’s documents, price lists and opening hours.
• Hands: connections to the calendar, the CRM or the ticketing system.

The agent does not improvise the job. It follows a workflow the business has approved: greet, understand the reason for the call, check the diary, book, confirm. Inside each step, it talks freely.

• Answer every call, at any hour.
• Understand free speech in 42 languages, and switch language when the caller does.
• Look up answers in the client’s knowledge base.
• Act: book, cancel, update a record or open a ticket in the client’s systems.
• Transfer to a person when the caller asks, or when the case needs one.

One agent can speak several languages. It follows the caller’s language during the call, with its own voice, speed and messages for each language.

• Full support, 8 languages: French, English, Spanish, German, Italian, Dutch, Polish and Portuguese. Relative dates (“next Tuesday”), numbers said in words and spelled-out email addresses are understood natively.
• Standard support, 34 languages: the full conversation and multilingual agents. Relative dates, numbers said in words and spelled-out addresses can be understood less precisely.

Arabic · Bengali · Bulgarian · Chinese · Croatian · Czech · Danish · Finnish · Greek · Gujarati · Hebrew · Hindi · Hungarian · Indonesian · Japanese · Kannada · Korean · Malay · Malayalam · Marathi · Norwegian · Punjabi · Romanian · Russian · Slovak · Swedish · Tagalog · Tamil · Telugu · Thai · Turkish · Ukrainian · Urdu · Vietnamese.

Hebrew and Urdu are understood, and their voices are being activated: they are not offered in the editor yet.

• Cold calling French consumers without their prior consent, required since 11 August 2026. Business-to-business calls are outside that law.
• An agent that hides that it is an AI, or pretends to be a real person.
• Medical advice or triage, and emergency or crisis lines. The agent can pass an emergency on, never handle it.
• Decisions about people, such as recruitment, creditworthiness or access to essential services, without Manivox’s written agreement.
• Manipulation, hard-sell debt collection, emotion recognition and voice cloning.

Today: the phone rings and nobody can pick up. Voicemail. The patient calls the next practice on the list.

With Manivox: the agent answers straight away, finds a free slot in the diary and books it. The assistant finds the appointment already in the calendar.

Today: the phone rings in an empty reception. A customer wants to book a service and asks whether their car is ready. Someone wipes their hands and walks over, or nobody does.

With Manivox: the agent books the service in the workshop calendar and reads the repair status from the workshop system. The mechanics keep working.

Today: one night porter, a queue at the desk, and a guest who does not speak the local language.

With Manivox: the agent answers in German, explains late check-in, and leaves a message in Reception for the morning team. If the guest switches to English, so does the agent.

64% of customers say they would rather companies did not use AI in customer service, and their top fear is not being able to reach a person (Gartner, 2024). So every agent offers a way to reach a person, and says so.

It answers from the client’s own knowledge base. KB Doctor checks the documents for contradictions, placeholders and missing basics such as opening hours. Agent Lab tests the agent with difficult callers before it goes live. Every real call is transcribed, so the client can read exactly what was said.

• The core of the platform is hosted in France. Speech recognition runs in the EU with a US-based provider, and the contract says so plainly.
• The business is the data controller, its partner the processor, Manivox the sub-processor. Every further sub-processor is listed in the client portal, or in the partner’s contract.
• The greeting says it is an AI, as the EU AI Act has required since 2 August 2026.
• Call data is never used to train AI models. There is no voice biometrics and no emotion recognition.
• Recordings are deleted after 7 days by default. They can be switched off for each agent, or sent straight to the business’s own storage.

Telling them is mandatory, so the question is how. For service calls (booking, status, information), a short and useful greeting works: “I’m the practice’s AI assistant. I can book you in right now.”

It takes the repetitive calls, the peaks, lunchtime and the nights. Staff keep the calls that need them, and start each day with the overnight messages already waiting for them.

The agent is built in a visual editor: the steps of the call, the routes between them and the tools each step may use. Calendars and CRMs connect through ready-made app connectors (Google Calendar, HubSpot, Salesforce and many more) or through the client’s own web services. The partner sets it up, and the business reviews and approves it before it goes live.