Some GSM Secret Codes..

Type *#61# and press call - Check
call redirection status.
Cancel all redirections: ##002#
*43# to activate call waiting,
to deactivate #43#.
If your phone doesn't have
incoming call barring and
outgoing call barring, you can try
this.
For outgoing call barring dial
*33*barcode*# and pres OK. To
deactivate it dial #33#barcode*#.
On any phone on any network
type in **43# to enable
conference calls. You can make
up to 7 calls at once If you need
to block SMS reception (if you are
spammed by someone) just press
this code: *35*xxxx*16# xxxx is
your Call Barring code (default is
0000). To remove this barring
type: #35*xxxx#
If you want to hide/show your
phone number when calling, put
one of these codes below in front
of the number that you are going
to call. (*#30# / *#31# or *31# /
#31# ) Works on some networks.
Typing *0# or *nm# on the
beginning of a txt message gives
you detailed delivery report on
some networks.. But turn off
reports in message settings
before.
When the sim card-pin blocked
type **042*pin2
old*newpin2*newpin2*
Important
If you know any other tips &
tricks & secrets about GSM mobile
or any other mobile which is not
listed here then you can post in
Guestbook and it will be updated
soon with your name.
Warning: You can try these codes
at your own responsibility ! We
are not responsible for any
malfunction and we don't accept
any complaints