Friday, August 7, 2009


112 (the magic number) is the worldwide Emergency number for Mobile . If you find yourself out of coverage area of your mobile network and there is an emergency, dial 112and the mobile will search any existing network to establish the emergency number for you, and interestingly …this number 112 can be dialed even while the keypad is locked. Try it out.

Mobile phones can be used in countries with different emergency numbers. A traveller visiting a foreign country does not have to know the local emergency numbers, however. The mobile phone and the SIM card have a preprogrammed list of emergency numbers. When the user tries to set up a call using an emergency number known by a GSM(Global System for Mobile communications) phone, the special emergency call setup takes place. The actual number is not even transmitted into network, but the network redirects the emergency call to the local emergency desk. Most GSM mobile phones can dial emergency calls even when the phone keyboard is locked, the phone is without a SIM card, or an emergency number is entered instead of the PIN.

GSM mobile phones have 112 as pre-programmed emergency number which is always available.The SIM card issued by the operator can contain additional country-specific emergency numbers that can be used even when roaming abroad. The GSM network can also update the list of well-known emergency numbers when the phone registers to it.

Using an emergency number recognized by a GSM phone like 112 instead of another emergency number may be advantageous, since GSM phones and networks give special priority to emergency calls. A phone dialing an emergency service number not recognized by it may refuse to roam onto another network, leading to trouble if there is no access to the home network. Dialing a known emergency number like 112 forces the phone to make the call possible on any network.

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