Samsung I7500 :: Built-in Blacklist

A friend called me and i rejected the call since i was busy, later when i unlocked the screen a pop-up kinda window was there with 3 options and a title saying Unlisted contact number, the options were : Blaclist number, deal with it later(or something like that) and dont show this again. From mistake i pushed blacklist. Where are the blacklist setting in DOnut(galaxo), i cant find them, i know in froto u can find them somewhere in call settings, in galaxo there isnt any.

This happend now, i`m charging the phone on my laptop, and when i removed the usb cable the music started playing, but the screen didnt showed anything or the notification bar,it wasnt even the last song i listened in music player; while the music was playing i went to music player and that started singing too, but the last song i listened, both songs were playin, i stopped the player and the intruder music was still playin, it stopped when i dragged down the notification bar. I re-did the action a few times and it was the same, now it doesnt do it anylonger.