AI voice agents for German and English calls
Every call answered. Every detail captured.
An agent set up for your business answers your phone, also when nobody is free to pick up. While the caller talks, it writes the call notes. You get them by email, and calls that need a person go to your team.
A recorded demo call. Lindenpark Dental is a fictional practice.
Lindenpark Dental: A fictional practice.
02:14. The practice closed hours ago. Nobody is at the desk tonight.
02:14. A patient with a toothache calls. Without help, this call would go to voicemail.
02:14. Mia answers on the first ring. She listens, asks the right questions and offers the emergency slot.
02:15. While they talk, she writes it all down. Name, request, time and number go into the call notes, ready for the team.
02:15. The night passes. The notes wait for the team.
07:55. By the time you open, it’s already handled. The call notes are waiting. The first appointment of the day was booked at 2:15 a.m.
- Mia: Lindenpark Dental, this is Mia, the practice’s AI assistant. How can I help?
- Caller: Hi, sorry for calling so late. I’ve got a really bad toothache and I can’t sleep.
- Mia: I’m sorry, that sounds painful. We keep emergency slots free every morning. Could you come in at eight?
- Caller: Yes. Eight is perfect.
- Mia: Can I have your name and a number to reach you?
- Caller: Tobias Keller. 0152 288 17386.
- Mia: Thank you, Tobias. You’re booked for eight o’clock this morning. I hope it eases soon.
Call notes: Request: Emergency appointment, toothache, When: Today, 8:00, Caller: Tobias Keller, Contact: 0152 288 17386, Status: Booked.
Call Mia yourself. The same agent, live in your browser. Three minutes, in English or German.
Lindenpark Dental · A fictional practice
Pick a business and call it. Our AI agent answers the phone as its receptionist and you play the customer: book, ask, complain or change your mind. Live, right in your browser.
Six businesses, six kinds of calls. Pick one to see the moment it’s built for, then call it yourself.
All six are demo businesses with invented details. You can call each of them live.All industries
- 06:52
Dental clinic
Lindenpark DentalDemo
Before the practice opens, a patient with toothache calls.
- 23:18
Restaurant
- 21:36
Real estate agency
Keystone PropertiesDemo
After work, a renter asks about the flat in Gostenhof.
- 02:31
Insurance claims
- 23:47
Hotel
Hotel LorenzhofDemo
Close to midnight, a guest asks about parking and the dog.
- 06:40
Car workshop
Becker Auto ServiceDemo
Before opening, a driver’s engine warning light comes on.
Forty-eight seconds at Becker Auto Service, one of our six fictional demo businesses, from the first ring to the notes in the owner’s inbox. Scroll to play the call.
- The phone rings while everyone is busy. Both mechanics are under a car. After four rings the call forwards to the agent. The rule is yours: always, after hours, or when nobody picks up.
- It answers as your business. Before it says hello, the agent has the workshop’s greeting, hours, prices and rules. It speaks English or German, whichever the caller speaks.
- It listens, asks and writes it down. One question at a time, like a good receptionist. Each detail goes into the call notes the moment the caller says it.
- It knows where its job ends. Whether the car is safe to drive is a question for a mechanic. The agent arranges a callback, books the first diagnosis slot and puts both in the notes.
- The notes are in the owner’s inbox. When the caller hangs up, the summary goes out: by email, or into the calendar or CRM the team already uses.
Transcript of the demo call
- Tom, AI: Becker Auto Service, this is Tom, the workshop’s AI assistant. How can I help with your car today?
- Caller: Hi. My engine warning light just came on.
- Tom, AI: Thanks for calling straight away. Which car is it, and roughly how many kilometres?
- Caller: A 2017 Golf, about 98,000.
- Tom, AI: Thank you. May I have your name and a number to reach you?
- Caller: Lena Wagner, 0171 3920042. Can I still drive it?
- Tom, AI: A mechanic should answer that, so I’ll have one call you back today. Shall I also book the first diagnosis slot, tomorrow at 7:30?
- Caller: Yes, please.
- Tom, AI: Done: tomorrow at 7:30, and a mechanic will call you on 0171 3920042 today.
Call notes
- Caller
- Lena Wagner
- Request
- Engine warning light, Golf 2017, 98,000 km
- When
- Tomorrow, 7:30, diagnosis
- Contact
- 0171 3920042
- Status
- Booked, mechanic calls back today
The things a good receptionist does on the phone, and the notes they would write afterwards. Stated plainly.
Answers as your business
Your greeting, opening hours, services, prices and rules go into a briefing the agent reads before every call. It answers from that briefing and hands over what isn’t in it.
Caller:
Are you open on Saturday?
Agent:
Yes, from 8 until 12.
Speaks German and English
It greets callers in the language you choose and switches when a caller speaks the other one.
Caller:
Können wir auf Deutsch weitermachen?
Agent:
Natürlich, gerne.
Books appointments and reservations
It offers concrete times, lets the caller choose and confirms. Connected to your calendar, it books into real free slots. Without a connection, you get the request to confirm.
Agent:
Thursday at 9:15 is free. Shall I book it for you?
Writes the notes during the call
Name, request, time, number and status are filled in while the caller talks, not typed up afterwards. You choose the fields.
RequestProfessional cleaningHands over when it should
When a question needs a person, or the caller asks for one, it arranges a callback or puts the call through to your team. The notes go with it.
Agent:
A mechanic should answer that. I’ll have one call you back today.
Sends a summary after every call
Each call ends with the notes in your inbox, or in the calendar, CRM or ticket system you already use.
StatusBooked, Thursday 9:15Says that it is an AI
It introduces itself as an AI assistant and never claims to be a person. Asked directly, it says so and carries on.
Caller:
Am I talking to a real person?
Agent:
No, I’m an AI assistant. Shall we carry on?
Keeps calls on track
It steers off-topic or rude callers back politely. If a caller turns abusive, it says goodbye and ends the call.
Agent:
I can’t help with that, but I can find you a time. Shall we?
What it is set up not to do
- Ask for card details, passwords or ID numbers. If a step needs them, a colleague takes over.
- Make up prices, times or promises that aren’t in its briefing.
- Answer questions that belong to a professional, such as medical, legal or safety questions, unless you approved the answer.
- Pretend to be a person.
A phone call carries personal data. This is what happens to it, and what we agree with you before an agent takes its first real call.
The call
Speech is turned into text, answered and spoken back through ElevenLabs, the voice platform our agents run on.
The notes
The agent writes down only the fields agreed for your business, such as name, request, time and number.
The summary
It goes to the addresses and systems you name.
Built into every agent
- It never asks for card details, passwords or ID numbers.
- It says it is an AI and never claims to be a person.
- It answers from your briefing and hands over what isn’t in it.
- It can end abusive calls.
Agreed with you before go-live
- Which details the agent asks for and writes down
- Who receives the notes, and in which tools
- Whether calls are recorded, and how long transcripts are kept
- Which services process the call, set out in a data processing agreement
How we work
Five steps, at your pace. We start small, on your real calls, and you approve the agent’s briefing before it takes a single one.
How the pilot works in detailFirst call
We go through the calls you get: which kinds, what callers ask and what should happen next. No preparation needed.
You getA clear list of calls to hand off
Briefing and rules
We write the agent’s briefing from your information and agree handover rules and note fields with you. You approve all of it.
You getA briefing you have approved
Test calls
Your team calls the agent and tries to trip it up. We adjust the briefing until the answers are right.
You getAn agent your team has put to the test
Pilot
The agent takes real calls of the kinds you choose, for example only after hours. We review the results with you and fix what needs fixing.
You getReal calls answered, notes in your inbox
Live, and kept current
You widen the forwarding when you are ready. When your hours, prices or rules change, we update the briefing.
You getAn agent that keeps up with your business
The ones we hear most often. If yours isn’t here, ask us on a call.
It depends on how many kinds of calls the agent should handle and which tools it connects to. A first version for your most common calls needs one conversation with you and the information you already have, such as hours, services and prices. Connecting a calendar or CRM takes longer. You get a concrete timeline with our offer.
German and English, and it switches when a caller does. The voice platform supports more languages. If you need another one, tell us and we will test it with you before we promise anything.
It does what a good receptionist would: it arranges a callback or puts the call through to a person on your team, and the notes go with it. You decide which questions always go to a person.
We don’t publish a price list, because the work depends on your calls and your tools. There is a one-off cost for building the agent and a running cost that depends mostly on how many minutes it spends on the phone. After the first call you get a written offer.
Data protection is part of every project. Before go-live we agree with you which details the agent collects, who receives them, whether calls are recorded and how long anything is kept, and we set out the services involved in a data processing agreement.
Yes. Your number stays with your provider and forwards calls to the agent: all of them, only after hours, or when nobody picks up. If you prefer, the agent can also have a number of its own.
Every agent can send its notes by email from day one. Beyond that, we connect calendars, booking tools, CRMs and ticket systems through their official interfaces. If a tool has none, the email summary still works and nothing changes for your team.
Yes. Our agents introduce themselves as AI assistants, as all six demo agents do, and say so again whenever a caller asks. They never claim to be a person.
Yes. Opening hours, prices, rules and the greeting all live in the agent’s briefing. Tell us what changed and we update it, and test the change before it goes live.
No. It takes the calls nobody can pick up and the routine ones that follow a pattern, so your team can spend its time on the calls that need a person.
In a short call we look at the calls your team takes every day and show you which ones an agent could handle.
Or write straight to contact@syntorylabs.com