Default [Q]a good free call blocker kitkat ready

what's a good call blocker for me =
- can add a group from contact
- easy to make a blacklist
- not light the phone when an unwanted call come
- work with kitkat

Cm11 and TW = you can add only one by one numbers in reject list
all i try wake up the phone (light)

before kitkat the only one was root call blocker but i try it on kitkat it work sometimes and not another time (TW) on cm11 it disable the phone and you have only to reboot.

the xposed call blocker = good idea but have not the characteristic of a good one....
is there a way to add all number of a contact one one time ith the generic blocker of samsung or cm11 ?

avast = good but it light the screen

any idea ???
thanks