*31#9820619654 dials the number normally

#31#9820619654 is supposed to hide the caller id if the phone permits. My nokia phones do not.

*#06# imie number

XXXXXX XX XXXXXX X 

TAC FAC SNR SP 

TAC = Type approval code 
FAC = Final assembly code 
SNR = Serial number 
SP = Spare 

*#0000# version and date of phone

1st Line : Software Version, 2nd Line : Software Release Date, 3rd Line : Compression Type

The third line in our case is RAE-6. The E stands for GSM, the other options can be.

Prefix:
N: Mobile Phones
R: Computing Devices
T: Terminals

Suffix:
B: GSM 900/1900
C: DAMPS 800
D: CDMA/AMPS 800
E: GSM 900/1800
F: NMT-450
K: GSM 1800
L: GSM 900/1800/1900
M: GSM 900/1800
P: CDMA 800
W: AMPS/TDMA 800/1900
X: ETACS/TACS

*#21# followed by the send command will tell us the number that all calls are being diverted to.

*#30# followed by the send command which is the green key used to make a call. We get back a message saying that the number of the caller will be shown.

*#31# followed by the send command comes back with a message that my caller id will be send across.

*#33# and send will tell us that the call barring is not active.

*#35# and send will tell us that the call barring is not active.

*#43# followed by send tell us the status for call waiting.

*#61# followed by send tell us the number on no reply will be send to

*#62# followed by send tell us the number on divert if unreachable will be send to

*#67# followed by send tell us the number on busy calls will be send to

*#92702689# [*#war0anty#]

gives us three bits of information, call timer, call counter and standby timer.

23# will give us the 23^rd number stored on our contacts in the sim card.

If you are in your contacts seeing names, pressing the # key will show the name and the phone number in a larger font

//SCKE2 BEGIN:VCARD N:name TEL:number END:VCARD