AI virtual receptionist: how Sylen handles your calls, 24/7.
Your AI voice agent picks up, understands the request, books the appointment or takes the message, then sends you a call summary. Here is every detail, pricing included.
What you can expect, on every call.

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Your AI assistant picks up on the first ring. No one ends up in voicemail.
No limit on simultaneous calls
Three customers calling at the same time are three customers answered.

10 min
From sign-up to your first answered call. Nothing to install, no need to switch carriers.
24/7
Nights, weekends and holidays included. Your line never closes.
Hear her, then call her.
A call from your industry, replayed with her real voice. Then yours, live.
Call her01 62 04 55 66French-speaking demo line. Tell her your trade: she answers the way she would answer your customers.
A flat tire, on a Saturday morning.Recording in French, transcript in English
- The assistantGarage Martin, hello, I’m the shop’s AI assistant, how can I help you?
- The callerHi! Um, I got a flat this morning, the tire is completely flat. Could you fit me in today?
- The assistantOh, that’s annoying on a Saturday! We’ll find a solution. What name is it under, please?
- The callerJulien Moreau.
- The assistantThank you, Mr. Moreau. And which vehicle is it for?
- The callerA gray Clio. It’s the front right tire.
- The assistantAll right. The shop is open until noon: I can offer you 10:30, would that work?
- The caller10:30, perfect.
- The assistantGot it: this morning, 10:30, for the front right tire of the Clio. You’ll get an SMS confirmation right after the call.
- The callerGreat, thanks a lot!
- The assistantMy pleasure, see you soon, Mr. Moreau!
During the call
What she does, feature by feature.
Pick a feature to see exactly what she does on a call.
Every call answered, even three at once
She picks up on the first ring, day or night, and introduces herself as your business’s AI assistant. Several calls at the same time? Each one gets an answer.
- Several calls in parallel
- Nights, weekends and holidays
- Voice, tone and greeting your way
The call summary finds you wherever you are.
You call back whoever you want, whenever you want, already knowing what it’s about.

By email
After every call, the call summary: who called, why, and what was done. On every plan.
By SMS, to your customer
Their appointment confirmation, then a reminder. From Pro, it carries your name, with no mention of Sylen.
In your dashboard
Your call log, messages to handle and your appointments, on your computer or your phone.
In your software, from Pro
Each call summary flows into your CRM or business software, with no copy and paste. How it works
Your calendar fills up during the call.
The appointment books itself. She offers an open time slot and adds it to your calendar before hanging up. If you move something on your side, she sees it.
No online calendar? Sylen Calendar is included. Your tool isn’t on the list? Let us know.
18 compatible tools, sorted by use
Calendars
Every profession
- GGoogle Calendar
- OMicrosoft Outlook
Online booking
Independent professionals, coaches, freelancers
Cal.comCalendly
Acuity Scheduling
SimplyBook.me
YouCanBookMe
Restaurants
Table reservations
Zenchef
CoverManager
Mozrest
Beauty, wellness, fitness
Salons, spas, gyms
Timely
PhorestMindbody
TeamUp
Retail and hospitality
Workshops, shops, lodging
Square Appointments
BookeoCloudbeds
- LLodgify
- CalendarsGoogle Calendar, Microsoft Outlook
- Online bookingCal.com, Calendly, Acuity Scheduling, SimplyBook.me, YouCanBookMe
- RestaurantsZenchef, CoverManager, Mozrest
- Beauty, wellness, fitnessTimely, Phorest, Mindbody, TeamUp
- Retail and hospitalitySquare Appointments, Bookeo, Cloudbeds, Lodgify
Trademarks belong to their respective owners: they show compatibility, not a partnership.
Your CRM gets every call, from Pro.
From Pro, the full summary of each call goes automatically to your CRM or business software as soon as the call ends.
- REST API
- Webhooks
- JSON
- HMAC-signed
- OpenAPI
Your number stays yours.
Your customers dial the same number as today. Call forwarding, set up once, sends their calls to your AI assistant.
- All the time, or only when you don’t pick up. You choose, and you can change your mind anytime.
- Undone with one code. Your line goes back to exactly how it was.
- No business line? The Sylen number that comes with your agent can become one.
- Forward everything
**21*Sylen number#- Only if you don’t pick up
**61*Sylen number#- Cancel everything
##002#
Internet box, landline or business phone system: the codes vary by carrier. The guide lists them all.
What’s urgent reaches you right away.
What can’t wait is put through to you. She handles the rest.
You decide what’s urgent.
A leak, a breakdown, a patient in pain: you describe your emergencies in your own words, along with the number where you can be reached.
She puts the call through, right away.
When a call matches, she transfers it immediately to your cell phone or the on-call phone. The call summary flags it.
Otherwise, nothing gets lost.
Outside your criteria, or if no one picks up, she takes a complete message.
Life-threatening emergencies go to emergency services.
Faced with a life-threatening emergency, she directs the caller to the emergency numbers 15 or 112, without ever assessing how serious it is.
What other solutions let slip through.
Voicemail, an answering service or a new hire: each has its place. Here is what each one does, or doesn’t do, with a call.
| Criterion | Sylen | Voicemail | Outsourced answering service | In-house receptionist |
|---|---|---|---|---|
| Answers every call, even at the same time | Yes: Yes, no waiting | No: A beep, then nothing | Partly: Depends on workload | Partly: One call at a time |
| Evenings, weekends, holidays | Yes: 24/7 | Partly: Records only | Partly: Depends on the contract | No: No |
| Books the appointment in your calendar | Yes: Yes, during the call | No: No | Yes: Yes | Yes: Yes |
| Confirms the appointment by SMS | Yes: Included, with a reminder | No: No | Partly: Depends on the contract | Partly: If they remember |
| Knows your trade | Yes: Prepared for your business | No: No | Partly: Generic script | Yes: After training |
| Call summary after every call | Yes: By email and in your dashboard | Partly: A message to listen to | Yes: Yes | Partly: If they remember |
| Getting started | Yes: 10 minutes | Yes: Immediate | Partly: A few days | No: A hiring process |
Full details, pricing included: all comparisons, in French
At night, Sylen is on call.
Your customers don’t wait for opening hours to call. Evenings and weekends, every call is answered, sorted and filed for when you’re back.


A typical night, as an example. Weekends and holidays too.
Confirmed BookingTable for two on Friday night, added to the schedule.
Filtered Sales callSales call recognized and screened out.
Transferred Water leakEmergency detected, transferred to the on-call cell phone.
Qualified Quote requestNew customer, roofing work. Call summary ready by 8 AM.
Ready Your morningYour call summaries are waiting: nothing to chase, everything ready to handle.
How many calls slip past you?
The reachability diagnostic, tailored to your trade: your score out of 100, what your missed calls cost you, and what to do first.
What is your trade?
An agent prepared for your trade, among 146 trades: its vocabulary and your customers’ questions are already in place. See the trades (in French)
A clear price , no commitment.
Three plans, the same AI assistant. You choose based on your minutes, and switch in one click.
Compare plansOptions, overages and yearly billing, line by line.
Start
from €49 excl. VAT / month
100 minutes included per month1 user
For one person handling the phone.
Choose StartPro
Most popularfrom €129 excl. VAT / month
350 minutes included per monthUp to 2 users
For a small team, connected to its tools.
Choose ProScale
from €329 excl. VAT / month
1,000 minutes included per monthUp to 5 users
For a front desk that rings all day.
Choose Scale
Yearly, 3 months free. Fall offer, until November 15.
30-day money-back guarantee. A full refund: the first month on monthly billing, the whole year on yearly billing.
Enterprise, on quote. From 2,000 minutes per month. Request a quote
Frequently asked questions
How it works, pricing, your number, your data: everything people ask us before activating an agent.
What is an AI virtual receptionist?
A classic virtual phone system takes your calls online, with no hardware, and often offers a keypad menu (“press 1”). An AI virtual receptionist replaces that menu with a conversation: the AI voice agent picks up, understands the request, answers, books the appointment or takes the message, and only passes you what needs a human. Sylen belongs to this second family. To compare solutions and their prices, read our guide to AI phone systems (in French).
Will my customers know they’re talking to an AI?
Yes. She introduces herself as your business’s AI assistant at the start of the call. If your customer would rather talk to you, she takes their message and passes it on with their contact details.
What does she do when she doesn’t know the answer?
She doesn’t make it up. She answers with what you taught her (hours, services, rules) and, for anything else, notes the question and passes it on in the call summary so you can call back.
How does urgent call transfer work?
You decide what’s urgent for your business and the number where you can be reached. When a call matches, she transfers it right away, and the call summary flags it. If the caller describes a life-threatening emergency, she directs them to the emergency numbers 15 or 112, without ever assessing how serious it is.
Can she take several calls at the same time?
Yes. Your plan sets a number of minutes per month, not a number of simultaneous calls.
Can I choose what she says?
Yes. The greeting, tone, voice and instructions are all set from your dashboard. A setup assistant guides you through it; after that, she works on her own.
How much does Sylen cost?
Start costs €49 excl. VAT per month with 100 minutes, Pro €129 excl. VAT with 350 minutes and two users, Scale €329 excl. VAT with 1,000 minutes and five users. Beyond that, each minute costs €0.44, €0.39 or €0.35 excl. VAT depending on the plan. Monthly with no commitment, or yearly for less. Full details are on the pricing page.
Who sets up the agent? Are there setup fees?
You do, in about ten minutes, guided step by step. Or an advisor does it with you on a video call, at no extra cost. No setup fees, no hardware.
What if Sylen isn’t right for me?
You have 30 days to change your mind: you get a full refund, the first month on monthly billing, the whole year on yearly billing. You cancel from your dashboard, with no letter and no fees.
Do I need to change my number or carrier?
No. You keep your number and your carrier: a forwarding code dialed on your phone sends calls to your agent, all the time or only when you don’t pick up. Another code cancels it. All the codes are in our call forwarding guide by carrier (in French).
What happens to my calls and their transcripts?
No audio recording is kept: the voice is processed in real time, only for the length of the conversation. The transcript and summary of each call stay in your private dashboard for twelve months at most, then are deleted. For healthcare professionals, no transcript is kept and call content is erased after 30 days. Details are in our privacy policy.
Can I get call summaries in my software?
Yes. The call summary goes out by email after every call, on every plan. From Pro, the full call summary also flows into your CRM or business software as soon as the call ends. Your developer will find the details on the developers page.









