all the shortcut codes for Nokia phones,
examples:
*#06# IMEI
*#0000# Date of birth and firmware version
*#92702689# Warranty information and field testing
*#100# (dial) gets you your phone number
*#104# (dial) gets you your voicemail box number
*#7780# reloads the firmware
#7370# wipes the phone completely
holding down the menu button for a few seconds got you task manager.

Forwarding SMS, 'can't be done' I always heard, yes it could, possibly still can but haven't got two phones to try it on, *21*number to forward them to*16#

(some of these work on later phones still, 100/104/06)

Sad.
(Kip, Fri 1 Jul 2011, 8:29, 6 replies)

Just tried *#92702689# on my E63
and got the somewhat ominous sounding "Life timer".
( monster munch person, man, woman... camera... TV?, Fri 1 Jul 2011, 8:40, closed)

Por monstor mucnh alwys in are harts

( Dr. Shambolic je suis charlie, Fri 1 Jul 2011, 8:50, closed)

It's gone down from 000010:58
to 000010:53 since I first checked.

Who dies at the end, me or the phone?
( monster munch person, man, woman... camera... TV?, Fri 1 Jul 2011, 10:59, closed)

I'd be getting a checkup from the quacks if i was you!

(Kip, Fri 1 Jul 2011, 17:47, closed)

My N900 just says
"Unknown command"
( snee held his breath since, Fri 1 Jul 2011, 11:17, closed)

*#06*
This is not a nokia shortcut, it's a GSM USSD shortcut, and should work for any GSM phone.
(speedevil, Fri 1 Jul 2011, 9:30, closed)

well, yes, but all the phones back then were Nokias so I coined the phrase

(Kip, Fri 1 Jul 2011, 9:55, closed)