The Full Form of SIM is Subscriber Identity Module or Subscriber Identification Module.
Along with the full form of SIM card, we will try to provide other essential information related to SIM. SIM is a portable chip and has an inbuilt integrated circuit that securely stores the international mobile subscriber identity (IMSI). It is a type of memory card and functionality to connect mobile to a telecommunication network. It allows us to make a phone call globally where the availability of the user’s network is stable.
The SIM card looks like a tiny piece of plastic, but it has an integrated chip that can read mobile and connect to the GSM network. Every SIM card holds a unique identification number, phone number and data store which is compatible with almost every network. It helps us to use telecommunication service. If you do not own a SIM card, then you cannot perform messages, phone calls, and surf the internet on your smartphone.
SIM is commonly used in mobiles and smartphones that manages on the GSM network. It is a tiny movable chip and a user can use it with any supporting mobile devices.
What is the Basic Function of SIM Card in Mobile?
The SIM card carries essential subscriber information back and forth to the user’s network and it also holds some of users personal data. The basic function of SIM card is listed below:
- Connect a mobile phone to telecom network
- Store Phone numbers
- Manage Address book
- Network authorization data
- Internet configuration and connection
- Text messages
- Personal security keys
- Other data
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