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What is S@T ?A rival to the standard WAP 1.1 approach to
offering WAP browsing has been created. The SIM Alliance, a consortium of four
SIM (Subscriber Identification Module) card vendors - Gemplus, Giesecke &
Devrient (G&D), ORGA Kartensysteme and Schlumberger - unveiled their S@T
standard at the GSM World Congress [February 2nd 2000]. S@T (SIM
Alliance Toolbox) -enabled mobile phones uses SMS (Short Message System) text
messaging as the communications pathway, rather than WAP's native data protocol.
Hence S@T is reminiscent of WAP 1.0. The attraction is that there are far more
non-WAP cellular handsets in circulation than WAP 1.1+ compliant units. S@T basically involves downloading Java mini-applets to a GSM phone's SIM card, allowing WAP-compliant Web pages to be viewed - without graphics - on a non-WAP-compliant GSM phone. Virgin Mobile is currently the only UK carrier to issue 32 Kb SIM cards to its subscribers. These cards offer twice the normal capacity of industry standard SIM cards. Virgin claims that it has been working closely with Gemplus, its SIM card supplier, since the S@T standard was conceived, and plans to be the first cellular carrier in the world to offer all-phone Web browsing to its subscribers whether or not they have a WAP-compliant mobile phone. To
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