SIM Application Toolkit (SAT) consists of a set of commands defined for the communication between a card and a handset with the goal to enable the (U)SIM to initiate actions which can be used for various value-added services. This enables the SIM to build up an interactive exchange between a network application and the end user.
The Smart Card Web Server is one of the newest developments within telecommunication technologies and offers a Smart Card based mobile internet access. It is enabled by an USIM which is capable of supporting standard web technologies like HTML pages and HTTP.
Subscriber Identity Module (SIM) is an application on a chip card used mainly for authentication purposes based on secret numbers as IMSI and Ki and special algorithms to enable the identification of a mobile phone user within the GSM-network. The access/use is protected by a PIN.
As the SIM is the dominating application on this types of Smart Cards, the card (hardware) itself is often named SIM too.
A smart card, a chip card or integrated circuit card (ICC) is the general term for a card which contains one or more semiconductor chips. A chip card may be in the form of a memory card or a microprocessor card.
Smart Card Reader
A smart card reader is a device plugged to a computer that allows to send commands to a smart card.
The Single Wire Protocol (SWP, ETSI TS 102 613) is used as direct interface between the mobile phone's Contactless Front-end (CLF) and the mobile phone's (U)SIM card.