Integrations · Calendar
AI receptionist for Microsoft 365 / Outlook
Books directly
We can check live Microsoft 365/Outlook calendar availability and create appointments directly through Microsoft's official Graph API for work/school accounts (not personal Outlook.com accounts).
Last updated
FirstVoice with Microsoft 365 / Outlook
| Check availability during the call | Yes |
|---|---|
| Create bookings, jobs or leads | Yes |
| Recognise returning callers | Yes |
| Add call notes and summaries | No |
| Trigger follow-up texts or emails | Not yet confirmed |
Microsoft 365 / Outlook connection details
| Category | Calendar |
|---|---|
| Markets | Global |
| API documentation | Public view docs |
| Auth | OAuth 2.0 |
| Access | Self-serve: you can create API credentials |
| Zapier | Yes |
| Make | Yes |
| Webhooks | Yes |
| FirstVoice plan | Every plan |
| Checked | Against official Microsoft 365 / Outlook documentation, 16 September 2026 |
Entra app; application permissions need admin consent (permissions); 4 concurrent requests per mailbox (throttling)
Microsoft 365 / Outlook questions
Does FirstVoice integrate with Microsoft 365 / Outlook?
We can check live Microsoft 365/Outlook calendar availability and create appointments directly through Microsoft's official Graph API for work/school accounts (not personal Outlook.com accounts).
Can FirstVoice book directly in Microsoft 365 / Outlook?
Yes. It checks Microsoft 365 / Outlook availability during the call and books the chosen time.
Which plan includes Microsoft 365 / Outlook?
Microsoft 365 / Outlook booking is included on every plan.
Microsoft 365 / Outlook is a trademark of its owner. FirstVoice isn't affiliated with Microsoft 365 / Outlook.