So robocalls are the result of: - Cost of phone calls decreasing to basically zero - Cost of automation going to basically zero - Phone calls that can come from the Internet so there are no national boundaries anymore - Caller ID operating on essentially the honor system - Bad actors (telephone companies) benefitting from this traffic by charging for it - Larger players having no incentive to punish bad actors There'…
The first setting in my default Android phone app is to block unknown callers. What specifically do you want?