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Chapter 14 - SIM ToolKit for
RUIM Software Version
Overview of SIM Application ToolKit
Note: The SIM ToolKit features and functionality are available only in the RUIM software version.
Summary
SIM ToolKit, also known as .SIM Application ToolKit, introduces new functionalities which open the way to a broad range of
value added services. The principle is to allow service providers the ability to develop new applications (e.g. banking, travel,
ticket booking, etc.) for subscribers and to download them into the SIM. This solution allows new services to be accessible to
the user by adding new SIM-based applications without modifying the handset.
Functionality
SIM Toolkit refers to the functionalities described in the GSM Technical specification 11.14. It introduces about 25 new
commands for the SIM. Three classes of ToolKit functionalities have been defined with class 1 offering a subset of commands
and class 3 offering the full range of commands.
The SIM Application Toolkit supports:
•
Profile Download
•
Proactive SIM
•
Data Download into SIM
•
Menu Selection
•
Call Control by SIM
Profile Download
The Profile Download instruction is sent by the customer application to the SIM as part of the initialization. It is used to indicate
which SIM Application Toolkit features the customer application supports.
The AT command used for this operation is +STSF (SIM ToolKit Set Facilities).
Proactive SIM
A proactive SIM provides a mechanism whereby the SIM can ask the customer application to perform certain actions.
These actions include:
•
display menu
•
display given text
•
get user input
•
send a short message
•
play the requested tone
•
set up a call
•
provide location information
This mechanism allows SIM applications to generate powerful menu-driven sequences on the customer application and to use
services available in the network.
The commands used for this operation are:
+STIN (SIM Toolkit Indication)
+STGI (SIM Toolkit Get Information)
+STGR (SIM Toolkit Give Response)
Data Download to SIM
Data downloading to the SIM allows data (SMS, phonebook) or programs (Java applets) received by SMS or by Cell
Broadcast to be transferred directly to the SIM Application.
This feature does not need any AT command. It is transparent to the customer application.
Menu Selection
A set of menu items is supplied by the SIM Application ToolKit. The menu selection command can then be used to inform the
SIM Application which menu item is selected.
The commands used for this operation are:
+STIN (SIM Toolkit Indication)
+STGI (SIM Toolkit Get Information)
+STGR (SIM Toolkit Give Response)
Multi-Tech Systems, Inc. CDMA Wireless AT Commands (PN S000294J)
Chapter 14 – SIM ToolKit
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