Rainbow Electronics FARGO MAESTRO 100 (with TCP_IP) - Manual (Page 485)

SIM ToolKit Commands
Overview of SIM Application ToolKit
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WM_DEV_OAT_UGD_049 - 001 VOLUME 3 August 23, 2007
19.1.8 Messages exchanged during a SIM ToolKit operation
The following figure shows the SIM ToolKit commands and unsolicited results that
are exchanged.
WAVECOM
Wireless CPU ®
Customer
Application
AT+ STSF =X,XXXXXXXX
+STIN: X
AT+STGI=X
+STGI response
AT+STGR=X,XXXXXX
STEP 1: Configuration and Activation
STEP 2: SIM sends proactive
command
STEP 3: Customer application gets all the
information.
Step 4: User response is sent to the SIM.
+STCR: X
On the first step, the customer application informs the Wavecom product which
facilities are supported. This operation is performed with the +STSF (SIM ToolKit Set
Facilities) command, which also allows to activate or deactivate the SIM ToolKit
functionality.
On the second step, an unsolicited result +STIN (SIM ToolKit indication) is sent by the
product, indicating to the customer application which command type the SIM
Application ToolKit is running on the SIM card. The last SIM ToolKit indication can be
requested by the AT+STIN? command.
On the third step, the customer application uses the +STGI (SIM ToolKit Get
Information) command to get all the information about the SIM ToolKit command,
returned by a +STIN message.
On the fourth step, the customer application uses the +STGR (SIM ToolKit Give
Response) to send its response (if any) to the SIM ToolKit Application.
The +STCR (SIM ToolKit Control response) indication is an unsolicited result sent by
the SIM when Call control functionality is activated and before the customer
application has performed any outgoing call, SMS, SS, or USSD.