(keitai-l) Cheat Codes?

Hi,

i am new to the list and have a question...i know of several
"cheat codes" of german (or european) mobile phones, most of these
you can find on the web like in this Nokia Example:

http://nokiatone.ifrance.com/nokiatone/secrets.htm

Does anybody know the codes for japanese phones? Sometimes
it is very interesting what you can find in your phone ;)

Thanks,

Juergen - Tokyo