Appointments booked by Your AI itself.
On the phone, by email, via your website. The AI checks your calendar, suggests free slots, enters them, sends confirmations and reminders. Fully integrated with Google Calendar, Outlook and CalDAV.
Why an AI for appointment booking?
Because 40 % of all phone calls in SMEs are an appointment request — and you don't want to look it up yourself every time.
Arranged on the phone in 90 seconds
The caller states their request, the AI checks availability, suggests two slots, confirms, sends an SMS and an ICS file. Afterwards you only listen to the recording.
Also via email and web form
Appointment request by email? The AI replies with suggestions. Appointment booking on your website? A direct slot picker with a live calendar.
Reminders automatically
24 h, 2 h and 30 min before the appointment via SMS / email. No-show rate drops on average from 18 % to 6 %.
Industry rules built in
Workshop: slot length variable. Practice: private vs. statutory-insurance patient. Consulting: preparation and follow-up blocked. Tax adviser: initial consultation vs. ongoing engagements.
Appointment-AI features
Everything you need for appointment logistics in an SME — without Calendly add-on costs.
Bidirectional to Google, Outlook & CalDAV
Changes in the voiceOne calendar appear instantly in Google/Outlook and vice versa. Conflict detection in real time.
- Several calendars per person
- Team calendar with roles
- Import external ICS feeds
When can what be booked
Opening hours, breaks, holidays, lead time, buffer time, max. bookings per day — all per employee and per appointment type.
- Recurring blocked times
- Black-out days per location
- Slot length per appointment type
More than just the standard 30-min
Initial consultation (45 min, preparation 15 min), follow-up (30 min), emergency (immediate, 15 min). Each type with its own rules.
- As many appointment types as you like
- Assigned employees per type
- Sector templates included
SMS, email, ICS file
Confirmation with appointment details immediately after booking. Reminder 24 h before. Once more 2 h before. On cancellations, the slot frees automatically.
- Multilingual templates
- Logo, address, directions
- Add-to-calendar buttons
Confirmation click required
You can enforce the confirmation click. Without confirmation, the slot is automatically released again 24 h before the appointment.
Your own URL for your website
voiceone.ai/yourcompany — embedded as an iframe or directly as a subdomain.
- Your own logo & colours
- Mobile-optimised
- Embedded in Wordpress, Webflow, Wix
voiceOne vs. Calendly vs. Cal.com
An honest comparison. Calendly has the nicest booking page, Cal.com is open source. We play in the telephony league.
| Feature | voiceOne | Calendly | Cal.com |
|---|---|---|---|
| Booking directly over the phone | Fully integrated | No | No |
| Booking via email AI | Included | No | No |
| Web booking page | Yes, embedded | Very nice | Very nice |
| Google + Outlook sync | Bidirectional | Bidirectional | Bidirectional |
| SMS reminders | Included | In the Twilio add-on | In the add-on |
| Industry templates | Practice, workshop, consulting | No | Community |
| Server location | Germany | US, EU optional | Self-hostable |
| GDPR without workarounds | Yes | SCCs required | With EU hosting |
| Telephony built in | Yes | No | No |
How our customers deploy it
Three real configurations.
GP practice Köln
The AI answers appointment calls, asks the reason, checks availability, books or reschedules. Private and statutory-insurance patients handled by different rules. The practice team saves an average of 1.5 hours per day.
Franchise workshop Stuttgart
Appointment types: inspection (2 h, with preparation), tyre change (45 min), emergency (immediate). The AI calculates automatically and suggests slots. Bookings are now 80 % online and on the phone without staff involvement.
Family law Hamburg
Initial consultation (60 min) and follow-up (30 min) clearly separated. 15 min preparation time blocked before every initial consultation. Online booking with a mandatory mandate query.
Included in the voiceOne plan
Get in touch with us for a bespoke quote. We configure volume, users and add-ons to suit your sector.
Request a personal consultation
30 minutes with an appointment consultant. We show industry-specific rules and discuss migration from Calendly / Doctolib.
Frequently asked questions
14 days free. First appointment booked in 5 minutes.
No credit card, no setup fee. Connect your calendar, share the booking link — done.