I don't know why this is a surprise. I have done it everyday for close to 20 yrs. I hold offshore meetings every day Monday through Thursday. Locally, every meeting has a bridge number to dial into, with added tools like video conference....so if you call a meeting locally, there is team members who prefer to dial in rather than go to the conference.
This is the new reality complements COVD-19.....why didn't we think about it!
RVP, perhaps now you can participate more in her education...lol