Query and Change Service Settings

They can select numbers on your keyboard block, in order receive charge metering information from your zellularen operator to or assemble dispatching attitudes. If you are the t-mobile USA a participant, you can select # 646 # (# minute of #) [ notch # 6 ] and an announcement returns, you avowedly, what your minuzioeser consumption is during the charge metering period. They can also select other small characteristics on your telephone, in order receive interesting information to or change net attitudes such as call forwarding. Into the G/M nets you can examine the status of many services, by sending announcements from your listener to the net of the operator. Some G/M of nets, like the t-mobile USA, offer # code, as shown in table 1-4. They must the key of call (the green telephone key, which you after you press yourselves, a number selected), operate after you these numbers type. Short-circuit * codes work imselben, which is of this waysome, shown in table 1-5. They should examine your manual telephone or web site of your operator, in order to learn, who code can use you.

Table 1-4. Short # codes
Short code	Result	Example operator
#MIN# (#646#)	Sends the minutes usage to your handset as a message	T-Mobile USA
#NUM# (#686#)	Sends your mobile number to you as a message	T-Mobile USA
#999#	Sends the balance of your prepaid account to you as a message	T-Mobile USA
#BAL# (#225#)	Sends your balance to you as a message	T-Mobile USA

Table 1-5. Short * codes
Short code	Result	Example operator
MIN# (646#)	Sends your minutes usage to your phone as a message	Cingular
BAL# (225#)	Gives you an update on your outstanding balance	Cingular
NUM (686)	Reads your mobile number to you with a voice recording	T-Mobile USA
PAY (729)	Enables you to make a free phone call to pay your bill	Cingular
*#100#	Sends you your mobile number as a message	Vodafone
*#1345#	Sends you your balance as a message	Vodafone
*#103#	Displays network time and date	Vodafone
*#147#	Displays the last incoming call, including time and date	Vodafone
*#105#	Displays cell tower information	Vodafone

You can also change your call preferences. Table 1-6 shows some call codes for GSM networks. (Forwarding may incur extra charges.)

Table 1-6. Call codes for GSM networks
Command string	Result of command
#31#PhoneNumber	Masks your phone number from Caller ID (your call to PhoneNumber shows up as "Private Call").
*#21#	Checks status of call forwarding.
*21PhoneNumber#	Forwards all calls to PhoneNumber.
##21#	Resets call forwarding to default.
*#67#	Checks status of forwarding for calls that arrive when you are busy.
*67PhoneNumber#	Forwards all busy calls to PhoneNumber.
##67#	Resets busy call forwarding to default.
*#61#	Checks status of forwarding for calls that you don't answer.
*61PhoneNumber#	Forwards all unanswered calls to PhoneNumber.
##61#	Resets unanswered call forwarding to default.
*#62#	Checks status of forwarding for calls that arrive when you are out of reach (when your phone is off or out of a service area).
*62PhoneNumber#	Forwards all unreachable calls to PhoneNumber.
##62#	Resets unreachable call forwarding to default.

Although many Nokia have telephones menu elections for the dispatching attitudes, are hard too received some from them (for example, most Nokia 3650s has a dispatching menu, but it is hiddento entrance it, you must one of her freely provable function keys it assign). And if you must assemble dispatching attitudes of a telephone at all, which does not have a choice to assemble to it can you in your SIM slam and these codes use (dispatching attitudes are pro participants, not pro telephone).

Table 1-7. Verizon Wireless short codes
Short Code	Result
#MIN (#646)	Sends the minutes usage to your handset as a text message or voice message
#BAL (#225)	Gives account balance information as a text message or voice message
#PMT (#768)	Enables you to make a free phone call to pay your bill
DWI (394)	Reports a suspected drunk driver (might not work in all service areas)

Hack 8. Query and Change Service Settings

Table 1-4. Short # codes

Table 1-5. Short * codes

Table 1-6. Call codes for GSM networks

Table 1-7. Verizon Wireless short codes