iPhone: Blocking calls by ignoring I want to block certain phone calls with my iPhone. However, the block list in iPhone actively blocks users and the caller known that he's being blocked.

However, sometimes you do NOT want the blocked user to know that he is blocked. So sometimes I just want to ignore callers (i.e., no incoming call notifications etc)

Is there any way and/or app to achieve this?
As far as I'm aware there is no such possibility in regular iOS.

I did find this app/tweak (iblacklist) that does what you want, although that's on Jailbroken devices only.