I recieved an email with some handy tips about mobile phones and I thought I should share then with you.
The Emergency Number worldwide for mobiles is 112 . If you find yourself out of the coverage area of your mobile network and there is
an emergency, dial 112 and the mobile will search for any existing network
to establish the emergency number for you, and interestingly this
number 112 can be dialed even if the keypad is locked. **Try it out.**
2) Locked out of your car?
Does you car have remote keys? This may come in handy someday. Good reason to own a cell phone: If you lock your keys in the car and the spare keys are at home, call someone at home 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. Saves someone from having to drive your keys to you. Distance is no object. You could be hundreds of miles away.
3) Hidden Battery power (Nokia handsets only)
Imagine your cell battery is very low, you are expecting an important call and you don't have a charger. Nokia handsets comes with a reserve battery. To activate this, press the keys *3370# Your cell will restart
with this reserve and the handset will show a 50% increase in battery life. This reserve will get charged the next time you charge your mobile.
4) How to disable a stolen mobile
To check your Mobile phone's serial number, key in the following
digits on your phone: * # 0 6 # 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, you can phone your service provider and give them this code. They will then 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 you know that whoever stole it can't use/sell it either. If everybody does this, there would be no point in people stealing mobile phones.
I've not tried (1), but as I go hill walking in Scotland, I might need to use it one day, but hopefully not. I've not been locked out of my car (2), so can't verify that for sure, but it seems intuitive that it will work. Try it out yourself. My mobile is an LG handset, so I can't verify (3). If anyone here has a Nokia, it would be great if they could try it and verify that it works. I've done the serial number thing and have taken a safe note of it(4).
I hope this helps