Callers booked into your Cal.com event types
Connect Cal.com and your Allo AI receptionist books the meeting while the caller is still on the line, into an event type you already use, inside the hours you set.
Or talk it through with our team
Allo
1Your AI receptionist answersIt finds a free slot and books it while the caller is still on the line.
Cal.com
2It's booked in Cal.comInto the event type you picked, inside your hours and booking rules.
You set the rules,
it books into Cal.com
Choose the event types your AI receptionist can offer, set the hours and rules it books inside, and see every meeting it booked from its Overview.
Offer up to 20 on the same call. A short note on each tells the agent when to use it; without one, it goes by the title.
Cal.comConfigureSelect event typesThe meeting types your AI receptionist can book during calls.Product demo· 30 minWhen30 minute call· 30 minWhen+ Add event typeSaveA 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 Cal.com
Allo reads your event types to pick the right meeting, then books it while the caller is still on the line.
From Cal.com
ProfileRead when you connect
CalendarsRead when you connect
Event typesUp to 20 offered on a call
Business hours, time zone, blocked dates and booking rules are set per connected calendar, on its integration page in Allo.
Booked by Allo
BookingsInto an existing event type, during the call
Sending a booking link
vs booking on the call
Sending a booking link
Callers asked to leave a message and wait for a callback- A link sent after the call that callers may never open
- A time agreed on the phone, then double-booked
- Evenings and weekends going straight to voicemail
With Allo
The meeting booked while the caller is still on the line- The right event type picked for what they asked for
- Only slots that are genuinely free, inside your hours
- Bookings taken after hours and at the weekend
Allo is an AI phone system,
not just an integration
The Cal.com sync is one part. Allo is the phone your team calls, texts and gets coached from every day.
See all features
AI receptionistAllo 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 summariesEvery 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 assistantConnect 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 inText customers from your Allo number and keep calls and messages together in one place.
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Power dialerCall through a list back to back with no manual dialing, so your reps spend their time talking, not clicking.
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Call analyticsSee call volume, outcomes and team activity at a glance, and coach from real conversations.
Explore this featureCal.com 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-ALLOWith an API key. In Cal.com, go to Settings, then Developer, then API keys, add one named Allo and create it with no expiration date. In Allo, go to Settings, then Integrations, then Cal.com, click Connect Cal.com and paste the key. Allo checks it against your account before saving it.
One of your existing event types, like a 30 minute call or a product demo. It never creates a new one. You can offer up to 20 event types on the same call, and give each a short note, for example when the caller wants a demo, so the agent knows which to use.
Allo falls back to the first event type on your Cal.com account, which may well be a test one. Always choose the event type in the agent's calendar settings, it takes a second and it's the difference between the right meeting and the wrong one.
Yes. Any team member can connect their own Cal.com account, and it's then visible to the whole workspace. Admins and managers can assign any connected calendar to an agent and configure its event types. A regular team member can assign their own, or a teammate's once that teammate has set its event types up.
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.
Yes. The Cal.com 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.