Callers booked straight onto your Outlook calendar

Connect Outlook and your Allo AI receptionist books the meeting while the caller is still on the line, on the calendar you choose, inside the hours you set.

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Maya Cole(555) 010-0142
Maya Cole called
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Call summaryview more
Booked: Meeting, Thursday at 10:00 AM

Meeting, Thursday Oct 8 at 10:00 AM. With Jordan Lee, 30 minutes. Looking for a phone system for 12 people. Missed calls are costing them bookings. Current contract ends March 31.

Meeting booked in Outlook

1Your AI receptionist answersIt finds a free slot and books it while the caller is still on the line.

Outlook
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October 2026
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TodayOctober 5–9, 2026Work week ▾
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9:30 – 10:30am
Yu & Co Realty demo
11am – 12pm
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Meeting with Maya Cole
Thu 10/8/2026 10:00 AM - 10:30 AM
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Allo

2It's on your Outlook calendarOn the calendar you picked, at the length you set.

You set the rules,
it books into Outlook

Choose the calendar it books on and how long meetings last, set the hours and rules it books inside, and see every meeting it booked from its Overview.

  • Any connected account in the workspace, any of its calendars you can edit. Meetings last 30 minutes unless you change it.

    AI receptionist
    Overview
    Job
    Personality
    Greetings
    Knowledge base
    Transfer rules
    Calendar scheduling
    Outlook[email protected]Configure
    Select the account to use
    Jordan Lee
    Calendar
    The Outlook calendar where your AI receptionist creates events.
    Demos
    Event duration
    Length of the meetings your AI receptionist books.
    30 min
  • A 30 minute buffer, your business hours and 2 hours of notice are on by default. Blocked dates are never booked.

  • The agent's Overview lists the upcoming meetings it booked, next to its recent calls.

What Allo reads
and books in Outlook

Allo reads your calendars, then creates the meeting on the one you picked while the caller is still on the line.

From Outlook

  • CalendarsOnly the ones you can edit
  • Primary calendarUsed when none is picked

Business hours, time zone, blocked dates and booking rules are set per connected account, on its integration page in Allo.

Booked by Allo

  • MeetingsOn the calendar you pick, 30 minutes by default

Taking the time down by hand
vs booking with Allo

Taking the time down by hand

  • Callers asked to leave a message and wait for a callback
  • A time promised on the phone, then double-booked
  • Somebody typing the appointment into Outlook later, or not at all
  • Evenings and weekends going straight to voicemail

With Allo

  • The meeting booked while the caller is still on the line
  • Only slots that are genuinely free, inside your hours
  • The event on your Outlook calendar, with nothing retyped
  • Bookings taken after hours and at the weekend

Allo is an AI phone system,
not just an integration

The Outlook sync is one part. Allo is the phone your team calls, texts and gets coached from every day.

See all features
AI receptionist

Allo answers when you can't, qualifies the caller and books the meeting, 24/7, so no lead slips away.

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Call recording and AI summaries

Every call is recorded, transcribed and summarized, so the key points and next steps are captured without taking notes.

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Run Allo from your AI assistant

Connect Allo to Claude, ChatGPT and more through the Allo MCP, and pull call data or trigger actions just by asking.

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Business texting built in

Text customers from your Allo number and keep calls and messages together in one place.

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Power dialer

Call through a list back to back with no manual dialing, so your reps spend their time talking, not clicking.

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Call analytics

See call volume, outcomes and team activity at a glance, and coach from real conversations.

Explore this feature

Outlook integration FAQ

An Allo agent picks up and puts you through to sales or support. It is the fastest demo on this page.

888-298-ALLO

In Allo, go to Settings, then Integrations, then Outlook, and click Connect Outlook Calendar. Sign in on Microsoft's page and grant Allo access to your Outlook calendar. You're sent back to Allo, which reads your calendars, and your account appears in the connected list.

The one you choose. Allo only offers calendars you can edit in Outlook, and if you don't pick one it books onto the account's primary calendar. You also set how long each booked meeting is, 30 minutes by default. There are no event types to configure.

Yes. Any team member can connect their own Outlook account, and any connected account in the workspace can be the one an agent books from, including a teammate's. Changing which calendar it uses and how long the meetings are is restricted to the account's owner, an admin or a manager.

Booking rules. A 30 minute buffer between meetings and a 2 hour minimum notice are on by default, business hours are respected by default, and you can turn on a booking window to cap how far ahead callers can book, 60 days by default. Blocked dates are never booked over.

Allo only shows calendars you can edit in Outlook. Check your sharing permissions for that calendar, or connect the account that owns it.

Only the person who connected it can disconnect it in Allo. They can also revoke Allo's access directly from their Microsoft account.

Yes. The Outlook connection exists so your Allo AI receptionist can book a caller in during the call. It's what turns an after-hours call into an appointment instead of a voicemail.