I haven’t verified all of these yet. Let me know if you find something different.
The Emergency Number worldwide for Mobile is 112. If you find yourself out of coverage area of your mobile network and there is an emergency, dial 112 and the mobile will search any existing network to establish the emergency number for you, and interestingly enough this number 112 can be dialed even if the keypad is locked. Try it out.
Have you locked your keys in the car?
Does your car have a remote key less entry? This may come in handy someday. Good reason to own a cell phone: If you lock your keys in the car and your spare key fob is at home, call someone at home on thier cell phone from your cell phone. Hold your cell phone about a foot from your car door and have the person at your home press the unlock button, while holding it near the mobile phone on their end. Your car will unlock.
Hidden battery power
Imagine your cell phone is very low. To activate, press*3370#. Your cell phone will restart with this reserve and the screen will show a 50% increase in battery power. The reserve will get charge when you charge your cell phone the next time.
Free directory Service for Cell Phones
The next time you need to use the directory service from your cell phne call 800-FREE 411 or (800)373-3411 instead. It’s free. Program this number into your phone.