SIM Card

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The SIM (Subscriber Identity Module) card also known as a “smart chip” is basically the “brain” of the telephone, supplying mobile service as well as a number of other functions including call history, voice email and text. SIM cards will be the dimensions of a credit card but they have a pop-out chip about the size of a postage stamp which fits in to all modern GSM phones. The Simulator is embedded with circuits and when inserted into a GSM phone offers mobile phone carriers on a specific GSM system.

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