How can i find out who initiated a facetime group call

Hi Anonimous_Vader,

Thanks for reaching out here in the Apple Support Communities. We see you have a question about finding out who initiated a Group FaceTime call. We're glad to help.

You can look in your Notification Center or in a group message (if the call originated from there) to see who sent you the invitation to join.

This explains more about joining a call: Use Group FaceTime on your iPhone, iPad, and iPod touch - Apple Support

Take Care.