3001#12345# and tap Call. Enter
field mode
Field mode reveals many of the
inner settings of your iphone
specially up-to-date network and
cell information
*#06# Displays IMEI. No need to
tap call
IMEI is the unique identifier for your
cell phone hardware
together with your SIM information
it identifies you to the
provider network
*777# and tap Call. Account
balance for prepaid iPhone
*225# and tap Call. Bill Balance.
(Postpaid only)
*646# and tap Call. Check minutes.
(Postpaid only)
These three are pretty self
explanatory
*#21# and tap call. Setting
interrogation for call forwards.
Discover the settings for your call
forwarding. You'll see whether
you have voice, data, fax, sms, sync,
async, packet access, and
pad access call forwarding enabled
or disabled.
*#30# and tap Call. Calling line
presentation check.
This displays whether you have
enabled or disabled the
presentation
of the calling line, presumably the
number of the party placing the call.
*&76# and tap Call. Check whether
the connected line presentation is
enabled or not.
State whether the connected line
presentation is enabled or disabled.
Presumably similiar to the calling
line presentation.
*#43# and tap Call. Determine if
call waiting is enabled
Displays call waiting status for voice,
data, fax, sms, sync data, async
data,
packet access and pad access. Each
item is either enabled or disabled.
*#61# and tap Call.
Check the
number for unanswered calls.
Sho the number for voice call
forwarding when a call is answered.
Also show
the options for data, fax, sms, sync,
async, packet access and pad access
*#62# and tap Call.
Check the
number for call forwarding if no
service is available.
Just like the previous, except for no-
service rather than no-answer
situations.
*#67# and tap Call.
Check the
number for call forwarding when
the iPhone is busy.
And again, but for when the iPhone
is busy.
*#33# and tap Call. Check for call
control bars
Here you will find all GSM-Codes/
Secret-Code, for the iPhone are
relevant.
*#06# Displays your IMEI on your
iPhone.
*3001#12345#* To get your access
to the field test mode of iPhone.
*#30# Thus, you can check whether
the caller identification (Clip-
function) in the iPhone is active.
*#43# Call Waiting Status
*43# Activate a waiting
#43# Deactivate waiting
Change PIN1: **04* old PIN * new
PIN * new PIN #
Change PIN2: **042*old PIN * new
PIN * new PIN #
*#746025625# SIM Clock Stop
Mode
Whether your SIM card the SIM
Clock Stop mode supported, you
can find out with this code. The
iPhone will then idle at the SIM card,
ie no calls, etc., all activities on the
SIM card.
This has a positive effect
on power consumption and
prolongs battery life.
*3370# EFR mode
Enhanced Full Rate improves voice
quality, but slightly reduced battery
life.
#3370# ERF OFF mode
*4720# Half Rate (HFR) on
Opposite of ERA.
#4720# Half Rate (HFR) off
*21# Call divert a
#21# Call divert from
**21* destination number #
number programmed
###21 deletes the call transfer is
complete.
*#21# Call Forwarding Overview
**61* destination number ** (Time
5 to 30 seconds) # divert after 5 to
30 seconds to ring
*61# Activate divert
#61# Call divert Disabled
##61# Deletes Diversion
*#61# Call divert status
**62* destination number #
redirection in unattainability
*62# Turning
#62# Off
##62# Clear
*#62# Status
**67* destination number # for
Divert if busy
*67# Turning
#67# Off
##67# Clear
*#67# Status
*31# phone number is transmitted
#31# phone number is not
transmitted
*#5005*86# Are you the code, it
displays the current mailbox
settings.
*5005*86*# xxxxx Combox mail
button on the available
(xxxxx = mailbox number)
*646# minutes consumption
control
*135# Display Own Phone Number
*33* barring code # Outgoing calls
to block the lock code to inquire
about her please contact your
network operator.
*#33 Unlock
*#33# Status
*331* barring code # Outgoing calls
abroad to block the lock code to
inquire about her please contact
your network operator.
#331* barring code # lift blockade
*#331# status
*#5005*7672# SMS- center check
Current number of the SMS Center
(SMSC) to find out. Each SMSC
according to variable cost
*5005*7672*xxxxxxx # SMS Center
reactivate
(xxxxxxx = SMS center number)
