> Group FaceTime calls didn’t exist at the time. That wasn’t added until 2018 and required iOS 12.

And CU-SeeMe did that in the early 90s with even worse hardware: https://en.wikipedia.org/wiki/File:CU-Schools.GIF

Even more broadly, group calls were sufficiently widely implemented to get themselves standardised 29 years ago: https://en.wikipedia.org/wiki/H.323

> It’s an extremely powerful application when you really step back and think about it. It just looks like “text” and boring business software.

The *entire operating system of the phone* is more powerful, and ran on less.