Rex Booking - Voxworks

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Overview

Tool name: Rex | Book Time in Calendar | Pro Use this tool to create a Rex calendar event. See Calendar Booking Overview for how availability and booking work across providers.

Provider Settings

ID	Setting	Type	Required	Default	What it does
`160`	calendar_id	string	No	team config	Rex calendar ID. If left blank, the tool falls back to team config.
`161`	user_ids	array/tags	No	team config	Rex user IDs for availability and booking. Can be entered as tags or comma-separated values.
`162`	contact_id	string	Yes	none	Rex contact ID to attach to the booking.
`163`	title	string	Yes	none	Appointment title for the Rex calendar event.
`164`	description	text	No	empty	Description written to the Rex event.
`165`	location	string	No	empty	Location text written to `event_location.description`.
`166`	duration_minutes	integer, minutes	No	`30`	Appointment duration.
`167`	business_days	array	No	provider/config default	Business days to offer, using ISO weekday numbers where Monday is `1` and Sunday is `7`. Example: `[1,2,3,4,5]`.
`168`	business_hours	time range object	No	provider/config default	Business hours window to offer. Example: `[0900,1730]`.

Common Settings

ID	Setting	Type	Required	Default	What it does
`0`	Number of Weeks	integer	No	`4`	Weeks to check availability. Tool definition range is `1-8`.
`1`	SMS Message	text	No	empty	Custom SMS confirmation message. Written to `{{sms.message}}`.
`3`	Booking Purpose	text	No	empty	Purpose of the appointment. Written to `{{calendar.purpose}}`.
`5`	Check Timezone Before Booking	boolean	No	`false`	Whether the flow verifies the user’s timezone before booking. Written to `{{timezone.check_timezone}}`.
`6`	Send SMS Confirmation	boolean	No	`true`	Whether to send an SMS confirmation after booking. Written to `{{calendar.sms_flag}}`.
`7`	Booking Window Start Offset (Minutes)	integer	No	`15`	Availability starts this many minutes after call start.

Availability Behavior

Rex availability is calculated from the configured calendar, users, business days, business hours, and duration. The flow checks the user’s selected time against the loaded availability, then creates a Rex event attached to the configured contact.

Global Variables Written or Maintained

Variable	When set	Meaning
`{{calendar.purpose}}`	Tool entry	Booking purpose configured on the tool.
`{{sms.message}}`	Tool entry	Custom SMS confirmation message.
`{{timezone.check_timezone}}`	Tool entry	Timezone verification flag.
`{{calendar.sms_flag}}`	Tool entry	SMS confirmation flag.
`{{calendar.event_id}}`	Availability load	Rex calendar or integration identifier.
`{{calendar.availability_spoken}}`	Availability check	Spoken availability response.
`{{calendar.booking_time_raw}}`	Slot validation and booking success	Exact selected slot in ISO date-time format.
`{{calendar.booking_time_spoken}}`	Booking success	Spoken confirmation time.
`{{calendar.booking_time_written}}`	Booking success	Written confirmation time.
`{{calendar.booking_id}}`	Booking success	Rex event ID.
`{{calendar.booking_link}}`	Booking success	Link returned by provider logic when available. Usually empty for Rex.

Cancellation Behavior

If the user cancels during the same call, the flow uses the Rex cancellation path where supported. A successful cancellation clears the stored booking ID, booking link, and stored booking time values. Output variable result is boolean true when the appointment was booked successfully.