Originally Posted by Masood_anwar
Weird thing is that it doesnt happen to all contacts only certain contacts
The people calling you have their number witheld then. Thats the message that appears on a blackberry in that event.
For instance my brother always comes up as that as his number is withheld at network level.
Ask them to test it by calling you with the code *31# infront of your number and see if it comes through. Also try deleting the number from the sim or the phone. Though I don't think that makes much difference on BB's