iPhone Tip #3
Your iPhone’s has some secret codes that are used to obtain information and to assist in performing tests. Knowing some of these can make your iPhone life easier, more productive and curb some of your curiosity.

Press # when listening to a iPhone users voicemail greeting.
You don’t have to listen to what can sometimes seem like an endless outgoing greeting when you just want to leave someone a voicemail message. You can cut directly to the beep by pressing a certain key for iPhone users (and all other AT&T cell phone users)

If you know which carrier the person you’re calling uses, so you can skip their voicemail greeting by using the correct keystroke:

• Verizon: press *
• Sprint: press 1
• T-Mobile or Cingular/AT&T: press #

*3001#12345#* and tap Call. Enter Field Mode.
Field mode reveals up-to-date network and cell information, GPRS, PDP, call information and firmware version. You can even do this while on another call. Just hit “add call”, enter the code and tap Call. This mode will display more information than you probably want to know! Tap on Refresh to update the info or tap Home to return to your normal iPhone interface.

*#06# Displays your IMEI. No need to tap Call.
IMEI (International Mobile Equipment Identity) is the unique identifier for your cell phone hardware. Similar to the ESN (Electronic Serial Number or MEID) of CDMA phones that Verizon uses. 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 how many minutes you have used up. (Postpaid only)
This works for other phones and carriers also with the correct keystroke:

• Verizon/T-Mobile: #646#
• Sprint: #4
• Cingular/AT&T: *646#

*#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 similar 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.
Show the number for voice call forwarding when a call is unanswered. 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.
Check voice, data, fax, sms, etc to see whether barring is enabled or disabled for outgoing.

911 emergency service number usually works on ALL cell phones, even when they are not activated with a service plan!

Free Directory Assistance
This tip works with all cell phones.
Call 800-FREE-411. You have to listen to a 20-second ad, but it’s better than paying $2 to your carrier for directory assistance!

Or send a text message to GOOGL (46645) that says “Name of the person or business you want 10024”. Google will send back the full name, address, and phone number, within just a few seconds.

Or just call 800-GOOG-411 and Google’s voice automated free service will come to your assistance.

Popularity Dialer
You can program http://www.popularitydialer.com to call your cell phone at a specified time, to get you out of a boring meeting or a bad date. It even has a simulated conversation for you to make it more real. It’s free!

    | Tags: iPhone, iPhone Tips