Facetime is invalid

[lets-getitnow]

Cal.com’s FaceTime integration requires a pasted FaceTime link. FaceTime links are persistent rooms, not per-meeting links, so reusing them causes participant carryover across bookings, breaks meeting isolation, and creates privacy risk. This is an architectural mismatch, not user error, and Apple provides no API to generate per-booking FaceTime links.

Solution
Use FaceTime as direct 1:1 calling, not shared rooms:
• Collect the attendee’s phone number / Apple ID at booking.
• Initiate FaceTime directly to that contact at meeting time (optionally via a facetime:// click-to-call link).
This preserves per-meeting isolation and scales safely today.