iphone plugged into computer no sound
When I plug my iphone into my computer I don't get any sound from the iphone speaker. I do get sound if I plug in my headphones however. I've had my iphone for almost a year and I can't remember if this has always been the case. Is it normal or a bug? If normal, why?? I miss texts and calls because of it. If a bug, how do I fix?
Thanks!
iPhone 4S, iOS 5.0.1