call reject

ok  guys so here goes.........just got the phone on saturday..fiddled with it  for almost a week.........got almost everything figured out except one thing..i put a number from the contact list in  the call reject list  to see if it worked.and it  did.but  now i want to remove that number  from the call reject list..and  here  is where i can't figure it out....


i hope someone  can help me out 

thanks in advance
jeff
p.e. canada