The default in this category is to hide
Look at the calling tools that have circulated for the last decade and you will notice a pattern: the marketing is about concealment. Mask your number. Sound like a local. Get past the gatekeeper. The unspoken promise is that the other person will not know who — or what — is really on the line.
That works right up until it does not. Carriers got better at detecting disguised traffic. Regulators wrote rules against it. And the people being called got sharper at smelling it. A call that is trying to hide something now reads as a call that has something to hide.
