Siemens manual AT Commands for Remote-SAT in MC35, Introduction

Remote-SAT User's Guide

1 AT Commands for Remote-SAT in MC35

This document presents the specification for AT commands and responses required for the SIM Application Toolkit (SAT) implementation in MC35.

1.1 Introduction

SIM Application Toolkit (SAT) is a technology that lets the SIM card execute a great variety of additional applications. Conventionally, SIM cards are intended to store user specific data, such as phonebooks, secure user identification codes and messages, but they can also hold a lot of value- added mobile applications.

The SAT functionality integrated in MC35 and MC35T allows to execute network specific applications implemented on the SIM card. Typical examples are online banking and information services.

The commands exchanged between SAT and the SIM application fall into two categories:

•Proactive commands – sent from the SIM application to the module’s SAT, e.g. DISPLAY TEXT.

•Envelope commands – sent from the module's SAT to the SIM application, e.g. MENU SELECTION.

The SAT implementation supports SAT class 3, GSM 11.14 Release 98, no support of letter classes. GSM 11.14 describes Proactive and Envelope Commands in detail.

Note:

The part on PC or PDA side which handles the Remote-SAT AT command interface (referred to as SAT-IF-Handler) is available as an exemplary implementation guidance as source code.

For details, please contact the Wireless Modules Application Engineering Department at Siemens AG.

MC35_SAT_01_v02.00 Page 5 of 65 11.01.2002