I have a quick question on Iphone 3G.. i have the firmware 3.1.3 i guess for the OS.. and the problem : "When there is talk going on between two people if the user with Iphone gets a call then the user or the other side knows that i am getting the call on other line or i have received a text.. Is there any settings that need to be changed. Searched the Net but couldnt find it.. Can anyone answer the question or had similiar problems