What is a SIM card?
A GSM phone is not directly linked to you. Instead, it has a removable account card, called a SIM (subscriber information module) and this SIM has a unique serial number on it. This is what identifies you to the wireless provider. The important difference about this is that you can put your SIM into any compatible unlocked phone. What is an unlocked phone and what benefit does it give me? Some wireless providers ‘lock’ their GSM phones, meaning that their phones have been programmed to only work with SIMs issued by their company. When you have an unlocked phone you can rent a local SIM at the Business Center. This will give you the convenience of your own GSM, attractive local calling rates, and you receive the professional service of the Business Center. Can I purchase an international calling card in Aruba? You can purchase calling cards for international calling at the Business Center and use them on the public phones in the resort and across the Island. The calling cards are in dif
It would be impossible for someone to understand the meaning of a SIM card without knowledge about using a mobile phone. However, a SIM card is a short form of Subscriber Identity Module card. This is a flat programmed card which is always fitted into a cell phone. It should be borne in mind that not all cell phones will require the use of a SIM card. What is essential is that the SIM card contains specific information of the customer of a particular provider. This will include personal as well as other information of that customer or subscriber. The fundamental thing is that the subscriber is able to use the SIM card to access information relating to contacts as well as information relating to the operating system of the SIM card provider.
The SIM card is like the “brain” of the GSM cell phone. It contains the information your cell phone needs to connect to a cellular carrier so that you can make and receive calls. Without a SIM card, your cell phone is useless. The SIM card in your North American GSM cell phone is programmed to charge international long distance and roaming rates when you travel outside of North America. Brightroam international SIM cards are designed to help you save on international roaming and work easily in any unlocked GSM cell phone. Also, be aware that other international cellular providers offering low cost GSM phones lock their phones to their SIM cards. You’ll pay a low fee for the phone but your airtime rates could be much higher. Unlike these providers, Brightroam only sells unlocked GSM cell phones so you control what SIM card you use in it — of course we hope it will be a Brightroam SIM card that will allow you to enjoy great savings on your international roaming.
A SIM card or Subscriber Identity Module is a portable memory chip used in some models of cellular telephones. The SIM card makes it easy to switch to a new phone by simply sliding the SIM out of the old phone and into the new one. The SIM holds personal identity information, cell phone number, phone book, text messages and other data. It can be thought of as a mini hard disk that automatically activates the phone into which it is inserted. A SIM card can come in very handy. For example, let’s say your phone runs out of battery power at a friend’s house. Assuming you both have SIM-based phones, you can remove the SIM card from your phone and slide it into your friend’s phone to make your call. Your carrier processes the call as if it were made from your phone, so it won’t count against your friend’s minutes. If you upgrade your phone there’s no hassle involved. The SIM card is all you need. Just slide it into the new phone and you’re good to go. You can even keep multiple phones for di
A SIM (Subscriber Identity Module) card is the heart of the GSM cell phone. It is a small chip, like the size of a dime. It is located behind the battery of most popular phones. See below How to install a SIM card? question. It carries vital information such as the phone number, the carrier that supplies it and accordingly the rates you will pay when placing or in some cases when receiving phone calls. It also carries the user’s identity for gaining access the network and receiving calls and also stores personal information, such as phone directory and received SMS messages.
