For the 60% of the world who own a cell phone, they realize the convenience of having communication within reach constantly through talking, texting, or mobile web-browsing.  The 40% who think cell phones are a nuisance might want to read the following; turns out cell phones bring a whole new meaning to the word convenience.

1. Emergency Coverage
The Emergency Number worldwide for cellular phones is 112. If you find yourself out of the coverage area of your mobile network and there is an emergency, dial 112 and your phone will search for any existing network in order for you to make the emergency call. Interestingly, this number can be dialed even if the keypad is locked.

2. Unlock Your Car Without Triple A
If your car has remote keyless entry, this may come in handy for you someday.  If you lock your keys in the car and the spare keys are with someone else, you can call that person on their 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, holding it near the mobile phone on their end. Your car will unlock.  This is a great convenience; it saves someone from having to drive your keys to you or waiting for Triple A. Distance is no object. You could be hundreds of miles away, and if you can reach someone who has
the other 'remote' for your car, you can unlock the doors (or the trunk).
Note: I actually tried it, and it works!

3. Unlock Hidden Battery Power
If your cell battery is low, simply activate your phone’s “reserve battery power” by pressing the keys *3370#. Your cell phone will restart with this reserve and the instrument will show a 50% increase in battery. This reserve will get charged when you charge your cell phone next time.

4. Disable A STOLEN Mobile Phone
To check your Mobile phone's serial number, key in the following digits on your phone: *#06#.   A 15-digit code will appear on the screen. This number is unique to your handset. Write it down and keep it
somewhere safe.   If your phone gets stolen, notify your service provider and give them this code. They will be able to block your handset so even if the thief changes the SIM card, your phone will be totally useless. You probably won't get your phone back, but at least whoever stole it can't use or sell it either!

5. Free Directory Service
Normally, cell phone companies charge between $1.00 to $2.00 for 411 calls. However most of us do not carry a phone book in our car, so the convenience of Directory assistance is worth the money.   The next time you need to use 411, try: (800) FREE 411, or (800) 373-3411. This is just as convenient as 411, but it doesn’t cost you a thing! The number is a little longer, so you might want to program this into your cell phone.