On Fri, 18 Jun 2021 11:34:52 -0400
Steven Rostedt [off-list ref] wrote:

How many times have you been in a conference where the normal mic and
speaker caused a nasty feedback loop?

I'm not sure how well phone mics and room speakers will work.

BTW, Don't take these criticisms as a rejection of your idea. I
actually like the idea. But to implement it, we need to go through all
the scenarios that will likely go wrong, if we want it to work.

-- Steve