Has anyone else had their music go silent when the phone looses its cell signal? On two phones (one replaced for battery issues), everytime I lose the signal my iphone speakers will go silent (the playback bar says it is still playing). It will eventually turn back on, but usually gets stuck in an annoying .5 second loop for a little bit before resuming normal playback. I noticed that when it goes silent, the cell signal drops to no bars, then no service. Anyone else experience this yet?