GT863-PY Terminal Product Description
80269ST10026a Rev. 2 - 18/03/08
Reproduction forbidden without Telit Communications S.p.A. written authorization - All Rights Reserved page 38 of 51
3.6 SAP: SIM Access Profile
3.6.1 Product architecture
The SAP feature allow the module to use the SIM of a remote SIM Server. This feature is
implemented using special AT Command on a Virtual circuit of the CMUX interface.
3.6.2 Implementation feature
• SAP is based on 7.10 CMUX Basic Option used
• Only SAP Client features
• Logic HW flow control is recommended on the Virtual instance selected for the SAP
command.
3.6.3 Remote SIM Message Command Description
The module sends request commands to the client application through a binary message that is
crowned in the CMUX message. The client application shall extract the message and send it to the
SAP server, through the appropriate protocols (e.g. by RFCOMM, that is the Bluetooth serial port
emulation entity).
The client application shall extract all the messages sent by SAP server and put them in the CMUX
message, to sent to the module.
The module satisfies the following feature requirements:
• Connection management
• Transfer APDU
• Transfer ATR
• Power SIM on
• Report Status
• Error Handling
Every feature needs some procedures support:
Feature Procedure
Connect
Report Status
Transfer ATR
Disconnection Initiated by the Client
Connection Management
Disconnection Initiated by the Server
Transfer APDU Transfer APDU
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