Westermo GDW-11 - Manual (Page 274)

274 SIM TOOLKIT 6615-2220
SIM TOOLKIT
NOTE:
SIM Toolkit can be activated and used with two different sets of commands.
… RIL (Radio Interface Laser): +CRSM (§), +CSIM(§), +STRIL(§)
… WESTERMO commands, described in the following paragraphs.
These two behaviors are exclusive.
Overview of SIM Application ToolKit
Summary:
SIM ToolKit, also known as “SIM Application ToolKit” introduces functionalities, which
open the way to a broad range of value added services.
The principle is to allow service providers to develop new applications (e.g. for 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 twenty five commands for the SIM. Three classes of increasing 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 is sup-
ported by the customer application.
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 applica-
tion to perform certain actions.