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The mini-SIM (or 2FF) card has the same contact arrangement as the full-size SIM card and is normally supplied within a full-size card carrier, attached by a number of linking pieces. This arrangement (defined in ISO/IEC 7810 as ID-1/000 ) lets such a card be used in a device that requires a full-size card – or in a device that requires a ...
Four example SIM card sizes that use the ISO/IEC 7816 interface. Created in 1988, updated in 1999, amended in 2004, updated in 2007. The standard defines an eight (or six) pin interface; the first pin is located at the bottom-right corner for the image given.
An Answer To Reset (ATR) is a message output by a contact Smart Card conforming to ISO/IEC 7816 standards, following electrical reset of the card's chip by a card reader. The ATR conveys information about the communication parameters proposed by the card, and the card's nature and state.
Some phone models utilize a "hybrid" SIM tray, which can hold either two SIM cards, or one SIM card and one MicroSD memory card. [31] [32] The Huawei Mate 20 range introduced a proprietary memory card format called Nano Memory, exactly the size and shape of a nano SIM card. [33] Some devices accept dual SIMs of different form factors.
In 2G networks, the SIM card and SIM application were bound together, so that "SIM card" could mean the physical card, or any physical card with the SIM application. In a GSM network, the UICC contains a SIM application and in a UMTS network, it contains a USIM application. A UICC may contain several applications, making it possible for the ...
A nano sim used in mobile phones. One of the key features of GSM is the Subscriber Identity Module, commonly known as a SIM card. The SIM is a detachable smart card [2] containing a user's subscription information and phone book. This allows users to retain their information after switching handsets.
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