Get your IMEI CODE *#06#
Number Identification On/Off *#30#
Statistics and Secret Menu *#*#4636#*#*
No Outgoing Calls *33*#  --Turn off by using #33*PIN#
Instant Factory Reset *#*#7780#*#*
Factory Reset and Firmware Re installation *2767*3855#
Listen to your last 20 calls *#*#8351#*#*
Enjoy!!! :)