Open Lines answers every call, checks your live Outlook and Microsoft 365 availability, and books the appointment — no double-bookings, no back-and-forth, nothing to migrate.
No credit card required. Live in under 10 minutes.
Connect your Microsoft account once and Open Lines reads your real Outlook availability before offering a caller a time, so it only books slots that are free. When a caller confirms, the meeting is written to your Outlook / Microsoft 365 calendar with their details, and your team sees it right away.
Authorize Open Lines from your dashboard in a couple of clicks. Works with Microsoft 365 and Outlook.
On every call it reads your Outlook free/busy times, so it never offers a slot that’s already booked.
Once the caller confirms, the appointment is written to your Outlook calendar with their name and details.
Reads your live Outlook calendar and books only genuinely open slots — no clashes.
Bookings appear in Outlook the moment a caller confirms, visible across your Microsoft 365 team.
Keep using Outlook exactly as you do today. Open Lines simply books into it for you.
Yes. The integration works with Outlook and Microsoft 365 calendars — connect your Microsoft account and Open Lines books straight in.
Always. Open Lines reads your live Outlook free/busy before offering a caller a time, so it only books open slots.
From your Open Lines dashboard, click to connect your Microsoft account and authorize access. It’s a couple of clicks with nothing to install.
Open Lines books into the calendar you connect. You can also connect Google Calendar or Square Appointments if you run multiple systems.