Vokaro + CalDAV (Nextcloud, Fastmail)
The open calendar standard, self-hosted included
CalDAV is the open standard for calendars, supported by Nextcloud, Fastmail, mailbox.org, Zimbra and others. During the call Vokaro checks your availability and writes the appointment directly — including when your calendar sits on your own server and never touches a US provider.
How the integration works
Map the workflow
We look at how appointments are recorded in CalDAV (Nextcloud, Fastmail) at your organisation today.
Set up the connection
We set the integration up for you. You configure nothing.
Test it together
We run test calls to confirm appointments arrive the way your team needs them.
Go live
Vokaro starts answering the calls you would otherwise miss.
Integration benefits
On your own server too
Nextcloud in-house? The calendar never has to leave your infrastructure.
Vendor-independent
CalDAV is an open standard. You are not tied to any single provider.
Availability is checked
Vokaro only offers times that are genuinely free in your calendar.
Fits strict privacy requirements
A self-hosted calendar stays under your control.
Ideal for
Frequently asked questions
Does Vokaro work with CalDAV (Nextcloud, Fastmail)?
Yes. We set up the connection to CalDAV (Nextcloud, Fastmail) for your organisation before you go live. There is nothing for you to configure and nothing to change about your existing installation.
Do we have to switch away from CalDAV (Nextcloud, Fastmail)?
No. You keep working in CalDAV (Nextcloud, Fastmail) exactly as before. Vokaro fits into your existing workflow rather than replacing it.
Which CalDAV providers are supported?
CalDAV is a standard, not a product. Nextcloud, Fastmail, mailbox.org, Zimbra and Apple iCloud all speak it. Whether your particular server behaves correctly, we check against your own account up front.
How does a phone booking reach CalDAV (Nextcloud, Fastmail)?
Vokaro answers the call, establishes what the caller needs and when, and makes sure the appointment ends up where your team already looks for it. Exactly how that works for your installation, we put in writing up front.
What happens with urgent calls?
Vokaro recognises urgent requests, captures the details and notifies your team immediately by SMS, or puts the call straight through.