I had purchased iPhone 4 operating on ios 5. Everyone knows that it has many new functions like siri and all. I was checking out all functions one by one. Lastly I came across the iMessages I. tried to deliver concept to my companion using iMessages but it was not sent at all. I tried first over 3G relationships and it unsuccessful. When I tried using wireless relationship by linking my apple ipad to it. Now also the same issue. It seems like the iMessage is not at all efficient. Is there any type of initial which I need to execute on my part or the mobile cellphone system company part to begin iMessages assistance on the apple company iphone 4?