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EHS6 AT Command Set
13.2 AT+CRSM
EHS6_ATC_V03.001 15/12/3
Confidential / Released
Page 353 of 513
13.2 AT+CRSM Restricted SIM Access
AT+CRSM offers easy access of the Elementary Files on the USIM. Access to the USIM database is restricted to
the commands which are listed at <command>.
All parameters of AT+CRSM are used as specified by 3GPP TS 11.11 [17], 3GPP TS 31.101 [18], 3GPP TS
31.102 [19]. EHS6 handles internally all required USIM interface locking and file selection routines.
As response to the command, the EHS6 sends the actual USIM information parameters and response data. Error
result code "+CME ERROR" may be returned if the command cannot be passed to the USIM, e.g. if the USIM is
not inserted. However, failure in the execution of the command in the USIM is reported in <sw1> and <sw2>
parameters.
Syntax
Parameter Description
USIM command number.
176 READ BINARY
178 READ RECORD
192 GET RESPONSE
214 UPDATE BINARY
220 UPDATE RECORD
242 STATUS
Identifier for an elementary data file on USIM, if used by <command>. Mandatory for every command except
STATUS.
Parameter to be passed on by the EHS6 to the USIM.
0...255
Test Command
AT+CRSM=?
Response(s)
OK
Write Command
AT+CRSM=<command>[, <fileID>[, <P1>, <P2>, <P3>[, <data>][, <pathId>]]]
Response(s)
+CRSM: <sw1>,<sw2>[,<response>]
OK
ERROR
+CME ERROR: <err>
PIN Last Reference(s)
- + - 3GPP TS 27.007 [45],
3GPP TS 11.11 [17], 3GPP TS
31.101 [18], 3GPP TS 31.102 [19]
<command>
(num)
<fileID>
(num)
<P1>
(num)
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