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Share a link to a FaceTime call on Mac
When you’re in a FaceTime call, you can share the link to the call with others so they can join.
Note: You can invite anyone that meets these requirements to join you on a FaceTime call, even people who don’t have an Apple device.
In the FaceTime app
on your Mac during a video call, click the Sidebar button 
, then click Share Link.Choose how you want to share the link. For example, choose Messages to send a text message to someone that includes the link for a FaceTime call.