Sim related commands, 1 at+crsm restricted sim access, At+crsm – Siemens TC63 User Manual
Page 363: Tc63 at command set
TC63 AT Command Set
14. SIM related Commands
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TC63_ATC_V00.490
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14.
SIM related Commands
The AT commands described in this chapter are related to the Subscriber Identity Module (SIM) connected to
TC63.
Note:
If using data from the SIM please bear in mind that the content of all Elementary Files is subject to change at any
moment!
This is true because the network can change the SIM's data in the background via the SIM Application Toolkit
(SAT) procedure "Data download to SIM". For a detailed description please refer to GSM 11.14,
.
To get informed that changing Elementary Files has taken place the TA needs to hook to the SAT Proactive Com-
mand "REFRESH". To achieve this, the AT command interface of SAT, i.e. Remote-SAT, needs to be activated.
An overview is given at Chapter
SIM Application Toolkit (SAT) Commands
, additional information is available
with the document "Remote-SAT User Guide"
14.1
AT+CRSM Restricted SIM Access
offers easy access of the Elementary Files on the SIM. Access to the SIM database is restricted to the
commands which are listed at
. However, additional SIM commands are available via
All parameters of
are used as specified by GSM 11.11
. TC63 handles internally all required SIM
interface locking and file selection routines.
As response to the command, the TC63 sends the actual SIM information parameters and response data. Error
result code "+CME ERROR" may be returned if the command cannot be passed to the SIM, e.g. if the SIM is not
inserted. However, failure in the execution of the command in the SIM is reported in
and
param-
eters.
requires PIN authentication. However, using
"READ
RECORD" is possible before PIN authentication and if the SIM is blocked (state after three failed PIN authenti-
cation attempts) to access the contents of the following Elementary Files:
Please beware of possible changes to Elementary Files by the network at any time, refer Chapter
Syntax
EF Symbol
EF Name
EF ID (hex.)
EF ID (dec.)
EF
ICCID
ICC identification
2FE2
12258
EF
ELP
Extended language pref-
erence
2F05
12037
EF
LP
Language preference
6F05
28421
EF
SPN
Service provider name
6F46
28486
EF
AD
Administrative data
6FAD
28589
EF
Phase
Phase identification
6FAE
28590
EF
ECC
Emergency call codes
6FB7
28599
Test Command
AT+CRSM=?
Response(s)
OK