No, I can't hear you now.

Have you ever gone about your day obliviously not aware that your cell phone was off? That was me today. I have no idea when it died (it wasn't battery related, the charge level is good), but I later learned that several people had been trying to call me. I didn't notice it was off until I was leaving work (~6:30) and I looked down at it for a time check and... nothingness. Argh.