Gsm 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*