I read about a ringtone that apparently only people within a certain AGE group can hear. It’s called Mosquito Ringtone and you can download a bunch of different files from their site. So if you don’t want your old-fart physics teacher knowing that you’re getting phone calls in class, you just have to use one of the ringtones under his age range.
The science behind it seems a bit… shaky. But I tried it, and I definitely couldn’t hear the 18 and under ringtones. (Although I couldn’t hear 30 and under either– I had to go all the way upto 39 and under.)
Check it out and let me know your thoughts..
Thanks to Amy for the link.
