@xrevan86 Yes, when I tried that, it resulted in me sitting there all alone.
Today's response seems to have worked. I finally got them to try it. We just had a 3-way conference that seemed to work. Now we're going to try to roll it out to other siblings tomorrow evening. (All it took to break the logjam is two relatives to be hospitalized with presumed COVID-19 ... an aunt is expected to pass soon, they haven't made any statement about the cousin.)
@geniusmusing @mangeurdenuage