Just recently my 4S has been not showing me who is calling when I am on another call. It beeps normally, to tell me I have another call, but in order to see who it is I have to hang up with who I am talking to. And then it seems like it has hung up on whomever it was, and it does not show in the Recent Call list. I'm not sure if this is since I did a software update or what is going on, but this is my business phone and I'm VERY annoyed at this!!!
