I have m1 Mac mini 2020. I know android does not have facetime. But I was excited when I heard IOS 15 and above allows facetime from iphone to androids. I tried it with my sister and cousin and it works great in opera browser. Not chrome for some reason. So when I open the facetime app on my mac mini and say new facetime it works when I type in a number belonging to somebody who owns an iphone like my mom who just upgraded to 15 pro max. It says cancel or facetime. I have an LG VELVET android made summer 2020 got in February of 2021. That number or my email address does not work. It says cancel or invite with messages which is greyed out. Is mac mini not compatible yet? Or you cannot facetime from one email to another? Why are certian numbers and emails greyed and others are not? It is only iphones at t his time and not others or emails?