In FaceTime on iPhone, make video or audio calls.
Take great photos and videos - Apple Support
Use Reactions, Presenter Overlay, and other effects when videoconferencing on Mac - Apple Support (CA)
How to make a FaceTime call on iPhone, iPad, or Mac
Make and receive phone calls in FaceTime on Mac - Apple Support (CA)
Type to speak using Live Speech on iPhone - Apple Support (CA)
Send email in Mail on iPhone - Apple Support (CA)
FaceTime User Guide for Mac - Apple Support (CA)
Find your apps in App Library on iPhone - Apple Support (CA)
FaceTime for Seniors: An Easy Step-by-Step Guide
View participants in a grid layout in FaceTime on iPhone - Apple Support (JO)
Use Check In on iPhone to let your friends know you've arrived - Apple Support (CA)
Use Group FaceTime on your iPhone or iPad - Apple Support (CA)
Keep in touch with friends and family - Apple Support (MD)
How to Send Link to Connect on FaceTime on iPhone, iPad, and iPod touch [VIDEO] • iPhone in Canada Blog
FaceTime - Wikipedia