AI receptionist: the complete guide

AI receptionists: what are we talking about?

An AI receptionist is a service that answers your business's calls with a voice agent: a program that listens to what the caller says, understands their request and answers out loud, in natural everyday language, as a person on reception would. What sets it apart from everything that came before can be summed up in one word: it acts. It doesn't just record a message. It books the appointment, notes the request, sends a confirmation by SMS and sends you a written summary.

To get a clear idea of what an AI receptionist is, you need to distinguish it from four things it is often confused with.

• Voicemail records a message when you don't answer. It asks no questions, books no appointments, and some callers hang up before the tone.
• An interactive voice response (IVR) system, the famous “press 1 for…”, steers the caller through a fixed menu. It doesn't understand a sentence; it recognises a key press.
• A call answering service, also known as a virtual secretarial service, hands your calls to human operators, often shared between several clients, during set hours. We have devoted a comparison to it.
• A cloud phone system routes a team's calls to the right extensions, displays statistics and records conversations. It distributes calls; it doesn't answer them for you. Here too, a comparison details the difference.

The AI voice agent sits where all of these meet: the availability of voicemail, the conversation of a receptionist, the integration of software. It suits any business whose phone rings more often than anyone can answer, which means almost every tradesperson, practice, agency and shop that works with its hands full.

What happens during a call

Take a plumber on a job. Their phone rings, and they can't answer. After a few rings, conditional call forwarding sends the call to the agent's number. The agent answers, gives the business name and makes clear that it is a voice assistant. The caller explains that they have a leak under the sink. The agent asks for the address, asks whether the water is still running, explains how to turn off the water supply if the plumber has included that in the instructions, and offers the first available slot in the calendar. It confirms the appointment to the caller by SMS, and within a minute the plumber receives a summary by email and a notification: name, number, address, reason, slot booked.

Caller: Hello, I've got a leak under the kitchen sink, it's dripping non-stop. Agent: I'm the company's voice assistant, I'll take that down. Is the water running continuously or dripping? And what's the address? Caller: Dripping, at 12 rue des Lilas, in Montreuil. Agent: Thank you. The first slot is tomorrow between 8 and 10 am. Shall I book it for you? You'll receive a confirmation SMS.

The same mechanism works for a dental practice, an estate agency or a hair salon. All that changes is the questions asked, the actions allowed and the tone, because you have defined them in your business profile.

The five actions of a good agent

1. Booking an appointment in your calendar, following your slots, durations and rules. Sayelo connects to Google Calendar, Microsoft 365 and Cal.com; other calendars can be looked into on request.
2. Qualifying a request for a quote, a call-out or information, with the questions you have planned, and passing it on to you by email with the answers.
3. Answering common questions: opening hours, address, access, parking, documents to bring, how to prepare for an appointment. Everything comes from the profile you have filled in; nothing is made up.
4. Transferring the call to your mobile or another line when a rule says so: an emergency, a keyword, a customer you have flagged as a priority.
5. Taking a booking or an order, for a restaurant, a pizzeria or a hotel, and sending it to the manager, in the calendar and in a summary email.

After every call, the summary is the real product of an AI receptionist. It's what lets you call the right person back at the right time and check, in the first few days, that the agent answers as you would have done.

What the agent doesn't do

A serious AI receptionist has limits, and it's better to know them beforehand than to find out along the way.

• It doesn't give medical, legal or accounting advice. A medical practice entrusts it with booking appointments and giving practical information, never with health advice. It tells the caller so and takes a message for the practitioner.
• It doesn't make up prices. It only quotes the prices you have given it. For a quote, it gathers the details and leaves the pricing to you.
• It doesn't negotiate or handle a complicated complaint. It listens, takes notes, reassures, and hands over to you or arranges a callback.
• It doesn't call your customers for you. The AI agent handles incoming calls: it doesn't make sales calls or run outbound call campaigns, which are a different business, with different rules. You can, however, call your customers yourself from Sayelo, in your browser, with your agent's number (only in France for now; coming soon in your country). You do the talking, and the call is neither recorded nor transcribed.
• It doesn't replace the relationship. For elderly, anxious or vulnerable customers, the agent is a door that is always open, not a wall. Transferring to a human must remain possible and easy.

Which trades it suits

AI receptionists first won over the trades where you can't answer because you're working. We have written a page for each trade, with a call scenario and the actions specific to each one. Here are a few families to help you find your bearings.

• Tradespeople and emergency call-outs: plumbers, electricians, heating engineers, locksmiths. The challenge is urgency: qualifying, reassuring, transferring or scheduling the job.
• Healthcare practices: dentists, physiotherapists, osteopaths, GPs. The challenge is clean appointment booking, with no medical advice, and data hosted within a certified framework.
• Property: estate agencies, property management and lettings. The challenge is not losing a single vendor or buyer, and organising viewings.
• Restaurants and hotels: restaurants, pizzerias, hotels. The agent takes the booking or order and passes it on to the manager, in the calendar and by email.
• Advisory professions: lawyers, accountants, notaries. The challenge is confidentiality, and telling a new case apart from an existing client or a sales call.
• Shops and services: hairdressers, beauty salons, garages, driving schools, vets. The challenge is booking appointments while serving the customer in front of you.

The full list is on the industries hub. If your business isn't listed, the agent adapts anyway: the business profile is free-form.

How much an AI receptionist costs

The market charges in three ways. A monthly subscription with a volume of minutes included is the most common. Pay-as-you-go billing, per minute used, sometimes with a monthly minimum. Or a subscription with a per-minute price beyond the allowance. Price differences between solutions mostly come from what is included in the subscription: the phone number, confirmation SMS, connected calendars, the number of simultaneous calls, data hosting and set-up.

Before comparing, measure your needs. Count your calls for a week, estimate their average length, and you have your monthly minutes. The rest is arithmetic, which we detail in the pricing guide.

To give you an idea of the order of magnitude, here is Sayelo's price list, as published on the website.

No commitment, 14-day free trial. With annual billing, you pay for ten months out of twelve. Up-to-date details are on the pricing page.

At Sayelo, the number, SMS, calendars, the email summary and certified hosting for health data are included in the subscription. When a month's minutes are used up, you add a top-up if you wish: nothing is billed as overage without your agreement. To compare with other solutions on the market, our comparisons list each one's public prices at a given date.

Setting up an AI receptionist: five steps

1. The number

You don't have to change your number. You keep your current number, whichever you prefer: by forwarding calls to your agent or, in France, by porting, on all plans. A new number is also included from the start of the trial, if you would rather start from scratch. In practice, with call forwarding, your current line carries on ringing at your end and the agent takes the calls you don't; with porting, available in France, the agent takes over your existing number directly, using your RIO code, which you get by calling 3179. The number porting guide explains the steps.

2. The business profile

This is the heart of the set-up. You describe your business as you would to a new recruit: opening hours, services, the area you cover, the questions to ask depending on the reason for calling, what to say and not to say, what should trigger a transfer, what should simply be noted down. The more concrete the profile, the more accurate the agent. Avoid overly long instructions: twenty or so clear rules are better than a page of prose.

3. The calendar

You connect your calendar (Google Calendar, Microsoft 365 or Cal.com) and set the rules: duration by type of appointment, open slots, buffer time, minimum notice before an appointment, number of appointments per day. The agent will only offer what these rules allow.

4. Conditional call forwarding

This is the setting that changes everything, and it takes two minutes. On your mobile or your landline, you switch on forwarding to the agent's number only if you don't answer, if the line is busy or if the phone can't be reached. You carry on answering when you can; the agent takes the rest. The how-to guide to conditional forwarding gives the codes for each French operator.

5. Testing and adjusting

Call your own number and act out five real situations: booking an appointment, an emergency, a question about opening hours, a cold caller, an unhappy customer. Read the summaries. Correct the profile. Start again. At Sayelo, the technical side takes a few minutes; it's fine-tuning on real calls, during the first week, that makes a good agent.

The legal framework, in brief

Handing your phone over to an AI involves three sets of rules, and none of them is complicated to comply with.

• The European regulation on artificial intelligence requires that people interacting with an AI system be informed of it, unless it is obvious. This transparency obligation, in Article 50, applies from 2 August 2026. An agent that announces itself at the start of every call meets it.
• The GDPR applies as soon as the agent processes a name, a number or a reason for calling. You must inform callers, in two stages if necessary (a short notice during the call and the details on your website), set a retention period, and put the relationship with the provider that processes the data on your behalf under contract. If calls are recorded, the CNIL, the French data protection authority, has published precise rules on informing people and on retention periods.
• Health data: in France, hosting it on behalf of a healthcare professional requires an HDS-certified host. If you run a practice, check this point before anything else.

The guide to AI on the phone, the AI Act and the GDPR details these obligations and what you need to write on your website.

Choosing a solution: the criteria that matter

Demos all look alike. The differences show up in the details of the contract and the technology. Here is what we recommend checking, in this order.

1. The number: is it included? Can you port yours, and on what terms?
2. Calendars: are yours connected natively, or do you have to go through an intermediary tool?
3. Data hosting: in France, in the European Union, elsewhere? HDS-certified if you handle health data?
4. Announcing the AI: does the agent introduce itself as such at the start of the call?
5. Simultaneous calls: how many calls does the agent take at once? Just one means a line that rings engaged.
6. Overage: what happens when the minutes are used up? Automatic billing, or a top-up at your discretion?
7. The trial: how long it lasts, with or without card details, and what it really lets you test.
8. Commitment: monthly, annual, and how do you cancel?
9. Languages: useful if not all your customers speak your language.
10. Support: who sets up the agent with you, and how quickly?

Our dated comparisons apply these criteria, solution by solution, with sources, and a buyer's guide sums them up for a small business.

Mistakes to avoid

• Forwarding all calls at once. Start with conditional forwarding: you stay in control, and the agent takes what you can't.
• Writing a profile that's too long. The agent doesn't need the company's history; it needs rules: what to ask, what to offer, when to transfer.
• Not reading the summaries in the first week. That's when you see what needs correcting.
• Forgetting to inform your customers. One line on your website and one sentence on your voicemail greeting are enough, and they avoid surprises.
• Making no plans for emergencies. A clear transfer rule, a back-up number, and the agent knows what to do when a human is needed right away.

Where to start

The simplest thing is to listen. A free three-minute demo, with no card details, calls you back on your mobile and plays the receptionist for your trade. If you like it, the 14-day trial runs on your own business, with a number included, and you judge it on your real calls. Prices are public, with no fixed-term commitment, and each industry page shows you what the agent will say in yours.