The problem with not having PTT is that in large calls, a small noise from potentially tens of individual people becomes a larger overall interruption in the ca

The problem with not having PTT is that in large calls, a small noise from potentially tens of individual people becomes a larger overall interruption in the call. Its a blunt stick when you cannot trust people to keep quiet or appropriately position their mic when they aren't talking. Atleast you only need to deal with their mic quality when they're talking, which at that point you can directly ask the person to fix it if need be.