Hello, Okay, yesterday I unplugged my headphones and then decided to call someone. But suddenly no sound came out of the ear piece of the phone, and it wasn't reception problems. I called my home phone to test and my home phone was ringing but no sound was coming out of the iPhone 4, but if I put it on speaker, it comes out, and if I use my headphone, sound comes out of the headphones too. I've had my iPhone since launch date in Australia, so is this mostly a hardware problems? Maybe some wire broken? Thanks.