My ex used to play/joke with me a lot before when he call and talk to me on the telephone. He use no special features/ordinary landline (on OUR work phone & MY home phone & OUR cell phone. I know where he was calling because most of the time, we were just in the same place) but he will dial something before the tel# and it will show “NO ID” on our cellphone and nothing at all on MY home phone even the ACR is ON. I just forgot to ask him what’s the trick. He doesn’t use *67 because I KNOW that and that shows “restricted” (I like "NO ID") on the caller ID and doesn’t go through when ACR is on. Well, just want to try if anybody out there knows WHAT NUMBERS/CHARACTERS to dial before the telephone number. I just like to know trick and also it's fun to use it too sometimes maybe.