In mobile phones the SIM card is known to be a subscriber identity module that is known to be the removable smart card. The required information is stored in the mobile phone over the SIM card to get the identification of mobile devices. It is almost impossible to require the data from the voice encryption that make the listening of the calls. The eavesdropping is carried out over the wireless carrier of the mobile phone. To the use of SIM card the personal details and then the customer id was stored in the SIM card. Between the different GSM mobiles, it can be easily interchanged over the seamless interchange. As a storage device, the SIM card is considered for storing the SMS and then the contacts of the user. The Lisbon PHP community getting its growth and development through the meetings of the php lx . More complex pieces of information are not able to be stored in the SIM card and also the more numbers over a single contact. The contacts may get broken up when more contacts are stored in the phone memory to the SIM memory and may discard the other pieces of information from the memory.

The use of the SIM card:

There are multiple uses is offered with the SIM card because the SIM card is very flexible and easily transformable and removable. It can be easily transferred to other mobile phones. To the GSM we can easily access the local mobile network and can easily receive calls and can send the SMS and be always connected with the people. The calls you are making and then the text you are sending are carried over the GSM which transfers the data and information to the other users. Without permission access towards your carrier you may not change or cannot switch into your new mobile phone. The CDMA is known as a tin piece of plastic and it has a small integrated chip over it to accept with the network of mobile phones that the SIM card has more variety of information that is saved in the memory. Before we make out with a call or making any of the text the user can take photos or access with the free wifi.

The memory of the SIM card:

The SIM card may hold the subscriber’s pieces of information when it is needed to recharge and getting the alert of the phone is getting the battery low. There is no matter what mobile phone or the application you are using with you can make use of the SIM card with any of the devices and can store any of the data or information with the SIM memory as well as the phone memory. Typically the SIM card can make out with the storage up to two hundred and fifty contacts and also with the other pieces of information. And also there it has the backup facilities over the storage memory. According to the retailer the price of the SIM card get changes and at the same time the size of the SIM card also changes according to the model of the mobile phone. And also the process of inserting and removing the SIM card also very easy and it is determined according to the type of the phone it could be placed behind the battery. And accordingly the user can open the panel and insert the SIM then the features also getting developed due to the availability.