Outbound reminder calls
Call the attendee after an appointment has been booked.
AI voice agent for appointment reminders
LunaCal’s AI voice agent calls attendees before an existing appointment. It can remind them, confirm the meeting, provide basic details and help reschedule or cancel when they ask—all from your scheduling workflows.
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Appointment follow-up by phone
Add an outbound voice call to selected event types and set its timing relative to the booked appointment.
Before-event timing
Choose how far before the meeting the workflow runs.
Event-specific workflows
Apply the voice action to the event types that need it.
Meeting confirmation
Help the attendee confirm the upcoming appointment.
Rescheduling by request
Let the attendee ask to change the appointment during the call.
Cancellation by request
Handle an attendee’s request to cancel the meeting.
Basic meeting details
Answer questions about the appointment’s basic details.
Shared usage credits
Voice calls and SMS draw from the same credit balance.
Bounded call length
Each AI call has a maximum length of three minutes.
Schedule a call before the appointment starts
Voice Agent Calls are a workflow action. Start with an existing booking, select the event types and choose when the attendee should receive the call.
- Create a workflow and select the event types it applies to.
- Choose Before an event starts and set the timing.
- Select Send AI call to attendee as the action.
What the agent can handle during the call
Remind and confirm
Bring the booked meeting to the attendee’s attention and help confirm the appointment.
Explain the meeting details
Give the attendee basic information about the appointment they already booked.
Reschedule on request
Help change the appointment when the attendee asks for another time.
Cancel on request
Handle cancellation when the attendee says they no longer need the appointment.
A reminder workflow connected to a real booking
The call starts with the appointment already in LunaCal. You choose the event types and a before-event trigger, so the agent has a specific meeting to discuss.
Existing appointment
Use voice for follow-up after booking. The workflow is an outbound reminder, not an incoming-call receptionist.
Selected services
Apply the workflow to the services that need telephone follow-up rather than every event in your account.
Appointment changes
Rescheduling and cancellation are part of the conversation when requested by the attendee.
Collect a phone number in the booking form
A voice reminder needs a usable attendee phone number. Collect the contact information needed for the appointment before adding the call workflow.
- Add the relevant phone question to the event’s booking form.
- Keep booking questions focused on the information the service needs.
- Use email and SMS workflows alongside voice when your appointment process needs written details.
Why use LunaCal for AI appointment calls?
LunaCal puts voice follow-up inside the same system that holds the booking, event type and reminder timing.
Appointment changes in the conversation
The agent can help reschedule or cancel, not only read out a reminder message.
No separate reminder list
Choose event types and relative timing in Workflows. The call follows a booked appointment instead of a manually maintained calling list.
Clear usage model
Enterprise starts at $25 per user per month with AI Voice Agent access. Voice usage is $0.15 per minute, capped at three minutes per call, using the same credits as SMS.
LunaCal vs Calendly, Cal.com and Koalendar
LunaCal focuses on calls before existing appointments. Cal.ai offers a broader inbound and outbound voice product; Calendly’s Callie schedules through email and chat. Koalendar offers email and SMS reminders.
| Capability | LunaCal | Calendly | Cal.com | Koalendar |
|---|---|---|---|---|
| Follow-up channels | Voice / email / SMS | Email / SMS | Voice / email / SMS | Email / SMS |
| Scheduling automation | Appointment calls | Callie email / chat | Inbound / outbound calls | Email / SMS workflows |
| Voice usage price | $0.15 / minute | — | $0.29 / minute | — |
| Before-event reminders | Yes | Yes | Yes | Yes |
| Event-specific setup | Yes | Yes | Yes | Yes |
| Booking questions | Yes | Yes | Yes | Yes |
| Email confirmations | Yes | Yes | Yes | Yes |
| Rescheduling links | Yes | Yes | Yes | Yes |
| Cancellation links | Yes | Yes | Yes | Yes |
| Calendar conflict checks | Yes | Yes | Yes | Yes |
| Team scheduling | Yes | Yes | Yes | Yes |
| Payment collection | Yes | Yes | Yes | Yes |
AI voice reminder questions
Does the agent call people who have already booked?
Yes. LunaCal Voice Agent Calls run through workflows after a meeting is booked. Set the trigger to Before an event starts and choose the timing.
Can the attendee change the meeting during the call?
The agent can help reschedule or cancel the meeting when the attendee requests it. It can also confirm the meeting and provide basic appointment details.
Is this an inbound AI receptionist?
This feature is an outbound appointment-reminder workflow. It calls attendees about an existing booking rather than answering incoming calls to take new appointments.
How much do AI calls cost?
Voice usage costs $0.15 per minute, with a maximum of three minutes per call. Calls use the same credit balance as SMS. The Enterprise subscription includes AI Voice Agent access; usage credits are separate.
Where are AI calls supported?
The supported destinations listed for Voice Agent Calls are the United States, Australia, Canada and the United Kingdom.
Can I enable calls only for certain appointments?
Yes. Select the event types when creating the workflow and choose a before-event trigger time.
Can I still send email and SMS reminders?
Yes. LunaCal also supports email and SMS workflows. You can use written reminders alongside the voice workflow for the event types that need them.