SIM stands for "Subscriber Identity Module". It contains a lot of information about the user. It is the reason Government always instructed to oeprators to collect the identity of the customer to store in their SIM and this is useful to trace out the identity of an individual.
A SIM card is a card that stores data for GSM ( Global System for Mobile Communication) cellular telephone of a customer. Such data includes user identity, location and phone number, network authorization data, personal security keys, contact lists and stored text messages. Security features also included in a SIM card to protect data.
CDMA stands for Code Division Multiple Access and it is diffrent from GSM.
A SIM card and can be switched easily from one phone set to another. The portability of data offers a number of benefits. For example, a user that buys a new phone can install the current SIM card to associate the new phone with the same number and user preferences as the old one. In another common situation, if a phone's battery runs out of power, the user can easily install the card to another subscriber's phone to borrow it without running up that user's minutes.
So, Always keep your SIM safely becuase It can be mis-used.
Keep reading......................God bless you.
No comments:
Post a Comment