This is a recording of a numberstation (although as you can tell from listening the recordings are not limited to numbers) You can listen to 4 cds worth at: The Conet Project
Basically number stations are probably code transmission stations though nobody knows for sure. Transmissions like the one above have been broadcast over shortwave radio for years. I used to listen to them when I was a frequent shortwave listener, and I always found them fascinating.
http://homestarrunner.com/sbemail152.html
hee,hee,hee! :) i definitely think we need to switch to scripts. and make our own hold music :)
And John's plans at world domination is one step closer..
http://www.extremetech.com/article2/0,1697,1901955,00.asp