General GSM Codes

Here we post some general GSM codes for purposes like Activation of Divert, Check call divert status, Activation of call waiting, Deactivation of Call waiting or call divert, Activation or deactivation of outgoing call and sms barring, conference calls etc.

*#61# Check redirection status.
##002# Cancel all redirections:
*43# to activate call waiting
#43#t o deactivate
*33*barcode*# to activate outgoing call barring
#33#barcode*#.to deactivate outgoing call barring
**43# to enable conference calls.(up to 7 calls at once)
*35*xxxx*16# To block SMS reception (if spammed by someone)
xxxx is your Call Barring code (default is 0000).
#35*xxxx#  To remove this sms barring

Put one of these codes below in front of the number that you are going to call if you want to hide/show your phone number when calling
(*#30# / *#31# or *31# / #31# ) Works on some networks.

Add *0# or *nm# on the beginning of a txt message- To get detailed
delivery reports (on some networks)

When the sim card-pin blocked: **042*old pin2*newpin2*newpin2*


To divert ur calls dial
**21*Num#
                     Num = the desired number to where call is to be diverted

To Cancel divert dial
##21#
To check status of call Divert dial
*#21#