Some such secret codes of your phone which you may not even know.
If you want to technical details of your network. You need to use this code. The secret code helps you to find an accurate signal strength of your network.
By using this secret code you can hide your caller id.
Use this code you can easily enable and disable your call waiting system.
If you want to forward your call to another number u should try this number.
(5)*82(number you are calling)
If your number is hardly block to you should try to this code.
You don't have any internet connection and want to check traffic status. This Code provides you local information.