The phone rings, your AI receptionist picks up.
CallGPT is an AI phone answering service: it answers your calls, books appointments in your calendar, qualifies your leads and calls your lists. It takes calls in French, at any hour, for small and medium-sized businesses.
41% cheaper than Talkr and 58% cheaper than Fonio, at 200 minutes a month
€49 excl. VAT a month with CallGPT, against €84 excl. VAT with Talkr and €119 excl. VAT with Fonio on monthly billing. Prices checked on 06/11/2026. See the price comparison
- Free trial
- 30free credits
- that is 20 minutes of test calls on your mobile, no credit card
- Subscription from
- €49excl. VAT / month
- Starter: 200 credits per month and 1 phone number, no commitment
- AI agentGarage des Tilleuls, hello. I am the garage's AI assistant. How can I help you?
- CallerHello, the engine warning light on my Clio has been on since this morning.
- AI agentI can offer you a diagnostic on Thursday at 9 a.m. or Friday at 2:30 p.m. Which suits you better?
- CallerThursday 9 a.m. is perfect. And how much will it cost?
- AI agentThe price depends on the diagnostic: the mechanic will give it to you on site, before any repair. I have you down for Thursday at 9 a.m. May I have your name?
- CallerSophie Klein.
- Appointment added to Google Agenda
- AI agentThank you, Ms Klein. See you Thursday, have a good day!
What the agent does during a call
It talks, but above all it acts: every call ends with something useful in your calendar, your dashboard or the caller's phone.
- It answers the question asked
- Opening hours, address, services, prices: it relies on the information you have given it, and only on that.
- It books the appointment
- It reads your free slots in Google Agenda or Calendly, offers two or three, and books during the call.
- It qualifies the lead
- Need, budget, timing, decision-maker: the answers arrive neatly filed in the call record.
- It takes a message
- Name, number and reason are noted for you, with the recording and the transcript.
- It transfers to a human
- When the caller asks, or when the subject requires it, the call goes through to the number you chose.
- It hangs up politely
- It ends the call properly. If someone says “do not call me again”, it confirms and the number joins your opt-out list.
Inbound calls, outbound calls
CallGPT can pick up and it can dial. The difference is who dials the number.
Inbound: your customers call you
They dial your number and the agent answers in place of the voicemail. It informs, books, takes notes or transfers. This is the most common case, available from the Starter plan.
Outbound: the agent calls a list
You import numbers into a campaign and the agent calls them one by one: appointment reminders, surveys, prospecting. Calls only go out within the legal hours, and never to a number on your opt-out list. Campaigns are included in the Pro and Business plans.
From sign-up to the first call
- 1
Create an agent from a use case
Standard phone answering, appointment booking, prospecting, customer service... The template provides the instructions and the tools; you add your hours, your services and what the agent needs to know. It calls your mobile straight away, so you hear it as your customers will.
- 2
Book a number or forward your own
A French landline number, with the area code of your region (01 to 05) or a 09 number. No local numbers in other countries are available. Want to keep your line? Forward its calls to the agent from your carrier. The agent answers in French.
- 3
Listen to the calls and adjust
Every call has its recording, its transcript and an analysis: reason, outcome, appointment booked. You fine-tune the instructions from what you hear.
Language and phone numbers: what to know first
CallGPT is built for French-speaking businesses. Please read these limits before you sign up: they apply today.
- The agent takes calls in French. We do not offer calls in English or in any other language at this stage.
- The phone numbers you can book are French landlines: geographic numbers starting 01 to 05 depending on the region, or 09. There are no local numbers in other countries, and no mobile numbers (06/07) in self-service. For a mobile number or a number in another country, write to us.
- Outbound campaigns only call French landlines and mobiles. WhatsApp messages sent by an agent only go to French mobile numbers.
- The dashboard you reach after signing in is in French.
What the agent does not do
An agent that improvises costs more than a missed call. These rules are built into every agent, whichever model you choose.
It does not make up prices
Its instruction is explicit: a price, a lead time or an availability that is not in its information is not improvised. It says so and offers to take a message or transfer.
It does not pretend to be human
It introduces itself as your company's AI assistant in its very first sentence, on inbound and outbound calls alike.
It does not replace your expertise
No diagnosis, no legal or medical advice, no firm quote: it points the caller to you or your team.
It does not call at just any time
Outbound campaigns stay within the legal hours for telephone canvassing and skip the numbers on your opt-out list.
Latest blog articles (in French)
Practical guides on phone answering, appointment booking and AI voice agents. The blog is written in French.
Hear your agent before you decide
The free trial gives you 30 call credits and an agent: it calls your mobile so you can hear it. No payment is asked.