Huh? What was that?

No, really. I can hear it. I swear. I'm not too old...

Oh. You weren't actually playing it.

Monday, June 12, 2006
Teens evade rules with a ring tone adults can't hear
By PAUL VITELLOTHE NEW YORK TIMES

In that old battle of the wills between young people and their keepers, the young have found a new weapon that could change the balance of power on the cell phone front: a ring tone that many adults cannot hear.

In settings where cell phone use is forbidden -- in class, for example -- it is perfect for signaling the arrival of a text message without being detected by an elder of the species.