I use ear buds and listen to music on my phone when I am riding my motorcycle. Yesterday, after the ride, I disconnected the ear buds from the phone. When I went to make a phone call or play music on the iPhone there was no sound from the speakers on the bottom. I ended up plugging in the ear buds again on the top iPhone hole and pushed the jack up and down a couple times. I disconnected the ear buds, and the sound came back. Appearently their is some feature on the phone that mutes all other sound when the headphones are plugged in. I wonder if there is something I can do to fix the problem, or do I have to make an Apple appointment. Your comments would be appreciated.