i-Phone Secret Codes - Secret Codes for i-Phone below :
*3001#12345#* and tab Call. Enter field mode. Field mode reveals many of inner settings of your iPhone, specifically up-to-date network and cell information.
*#06#, display your IMEI number. This code is the same as mobile code in general.
*777# and tab Call. Account balance for Prepaid iPhone.
*225# and tab Call. Bill balance (PostPaid only).
*646# and tab Call. Check minutes (PostPaid only).
*#21# and tab Call. Setting interrogation for call forwards. Discover the settings for your call forwarding. You'll see whether you have voice, data, fax, sms, and others.
*#30# and tab Call. Calling line presentation check. This display whether you enabled or disabled the presentation of the calling line, presumably the number of party placing the call.
*#76# and the tab Call. Checking whether the connected line presentation is enabled or not. State whether the connected line presentation is enabled or disabled. Presumably similar to the calling line presentation.
*#43# and tab Call. Determine if call waiting is enabled.
*#61# and tab Call. Check the number of unanswered call.
*#62# and tab Call. Check the number for call forwarding if no service is available.
*#67# and tab Call. Check the number for call forwarding when the iPhone is busy.
*#33# and tab Call. Check for call control bars.
Let's try that,maybe helpfull :D
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