Tricks And Tips*3001#12345#* and tap Call: Field Mode (iPhone network and cellular information)
*#06# : IMEI number.
*777# and tap Call: Pre-paid account balance.
*225# and tap Call: Post-paid account balance.
*646# and tap Call: Post-paid minute balance.
*#21# and tap Call: Call feature settings (enabled/disabled) for voice, data, fax, SMS, sync, async, packet access, call forwarding.
*#30# and tap Call: Caller-ID display check (enabled/disabled)
*#76# and tap Call: Connected call display check (enabled/disabled)
*#43# and tap Call: Determine if call waiting is enabled.
*#61# and tap Call: Call forwarding number with service (no-answer)
*#62# and tap Call: Call forwarding number without service (no-ring)
*#67# and tap Call: Call forwarding number when busy
*#33# and tap Call: Check outgoing services for call-barring (enabled/disabled)
