Your AI books appointments on its own.
On the phone, by email, on your website. The AI checks your calendar, offers free slots, books, sends confirmations and reminders. Fully synced with Google Calendar, Outlook and CalDAV.
Why an AI for appointment booking?
Because 40 % of SMB phone calls are appointment requests — and you don’t want to check the diary every time.
Booked on the phone in 90 seconds
Caller states preference, AI checks availability, offers two slots, confirms, sends SMS and ICS file. You only listen to the recording afterwards.
Also by email and web form
Email request? AI replies with slot suggestions. Website booking? Live calendar slot picker.
Automatic reminders
24 h, 2 h and 30 min before via SMS/email. Average no-show rate drops from 18 % to 6 %.
Industry rules built-in
Workshop: variable slot length. Practice: private vs NHS. Consultancy: prep + follow-up time blocked. Accountancy: initial meeting vs ongoing client.
Features of the booking AI
Everything you need for SMB appointment logistics — without paying Calendly add-on prices.
Two-way Google, Outlook, CalDAV
Any change in voiceOne is in Google/Outlook instantly and vice versa. Real-time conflict detection.
- Multiple calendars per person
- Team calendars with roles
- External ICS feeds supported
When can what be booked
Opening hours, breaks, holidays, lead time, buffer time, max bookings per day — per person and per appointment type.
- Recurring blocks
- Black-out days per location
- Slot length per type
More than just standard 30-min
Initial consult (45 min, 15 min prep), follow-up (30 min), emergency (immediate, 15 min). Each type has its own rules.
- Unlimited types
- Assigned staff per type
- Industry templates included
SMS, email, ICS
Instant confirmation with detail. 24 h before reminder. 2 h before reminder. Auto-released on cancellation.
- Multi-language templates
- Logo, address, directions
- Add-to-calendar buttons
Mandatory confirmation click
You can require a confirmation click. Without confirmation, the slot is auto-released 24 h before.
Your own URL
voiceone.ai/yourfirm — embed as iframe or use as subdomain.
- Custom logo & colours
- Mobile-optimised
- Embed in WordPress, Webflow, Wix
voiceOne vs. Calendly vs. Cal.com
Honest comparison. Calendly has the prettiest booking page, Cal.com is open source. We play in the phone league.
| Feature | voiceOne | Calendly | Cal.com |
|---|---|---|---|
| Entry price | £29/month total | $10/user/mo | $12/user/mo |
| Booking on the phone | Built-in | No | No |
| Booking by email AI | Inc. | No | No |
| Web booking page | Yes, embeddable | Very polished | Very polished |
| Google + Outlook sync | Two-way | Two-way | Two-way |
| SMS reminders | Inc. | Twilio add-on | Add-on |
| Industry templates | Practice, workshop, consult | No | Community |
| Server location | UK/Germany | US, EU optional | Self-hostable |
| UK GDPR ready | Yes | SCCs required | If EU-hosted |
| Telephony built-in | Yes | No | No |
As of 05/2026 — all prices per the providers’ public pricing pages. We refresh this table quarterly.
How our customers use it
Three real configurations.
London GP surgery
AI takes appointment calls, asks reason, checks availability, books or reschedules. Private vs NHS handled with different rules. Reception team saves about 1.5 hours per day.
Garage Bristol
Types: MOT (2 h, with prep), tyre change (45 min), emergency (immediate). AI calculates and offers slots. 80 % of bookings now happen online or on the phone without staff intervention.
Family law chambers Leeds
Initial consult (60 min) and follow-up (30 min) kept separate. 15 min prep blocked before each initial. Online booking with mandatory matter pre-screening.
Included in your voiceOne plan
Talk to a booking specialist
30 minutes with our booking specialist. We show industry-specific rules and discuss migration from Calendly / Cliniko / Bookwhen.
Frequently asked questions
Caller states reason. AI asks weekday and time preference. Checks calendar, offers two free slots. Caller picks. Booking is made, confirmation sent by SMS and email. Average duration: 90 seconds.
The AI checks the live calendar in real time. Double-bookings are impossible. If a booking is added manually during a call, the slot is locked instantly.
Google Calendar (Workspace and personal), Outlook (Microsoft 365 and Outlook.com), CalDAV (iCloud, Fastmail, Nextcloud, mailbox.org). Two-way real-time sync.
Yes, unlimited. Each type has its own slot length, prep time, assigned staff, booking rules and confirmation template.
Yes. Video meetings get auto-generated links (Zoom, Google Meet, Microsoft Teams, BigBlueButton) embedded in the confirmation.
Across our customer base: 6 % vs industry-typical 18 %. Main driver: 24h reminder with mandatory confirmation click + 2h SMS reminder.
Nothing. Included in your voiceOne plan from £29/month. SMS reminders are included up to 1,000/month; beyond that £0.06 per SMS.
14-day free trial. First booking in 5 minutes.
No credit card. No setup fee. Connect calendar, share booking link, done.