Yesterday I was using my speakerphone functionality for a conference call. I muted the phone to talk to someone in the room. After I un-muted the call the mute icon was still on the notification bar even though the phone was no longer muted. I noticed after I ended the call the icon remained. The phone worked fine, but the icon refused to go away. I finally had to reboot to get rid of the icon. Has anyone else seen this issue? It worked fine, but it was annoying to see the icon there.