Everyone loves a bit of privacy every now and then, and let's face it, I am pretty sure that everyone has given their cell phone number out to someone that they later regretted giving it to for one reason or another. You would expect, that in this advanced day and age when smartphones play such an increasingly important and prominent role in our everyday lives, we would have a native filtering option on the device, or at very least our networks would be able to provide such a service.
