Please, only reply if you're like me, my wife, and everyone I personally know with an iPhone 4 who enables mute, speakerphone, hold, or goes into the contacts menu etc while holding the iPhone 4 to their ear. I never had this problem with my iPhone, iPhone 3G, or iPhone 3GS, and even with the later software updates to the iPhone 4, this problem was never solved. My 4S should be here Friday, and I'm praying this issue is fixed! *face_praying* PS Can't wait for the 4S to arrive! Viva !