User guide

Developers guidelines | AT commands
160 June 2010
AT+CRSM Restricted SIM access
1 only TE can write to ME display (with command
AT+CDIS)
2 ME display can be written by both ME and TE
<ind>:
<ind> Description
0 only ME can set the status of its indicators
(command AT+CIND can only be used to read the
indicators)
1 only TE can set the status of ME indicators (with
command AT+CIND)
2 ME indicators can be set by both ME and TE
Description: By using this command instead of Generic SIM Access, +CSIM, TE
application has easier but more limited access to the SIM database. Set
command transmits the SIM <command> and its required parameters to
the ME. ME handles all SIM – ME interface locking and file selection
routines internally. In response to the command, ME sends the actual SIM
information parameters and response data. ME error result code +CME
ERROR may be returned when the command cannot be passed to the
SIM, but failure in the execution of the command in the SIM is reported in
<sw1> and <sw2> parameters.
Execution
command: AT+CRSM=<command>[,<fileid>
[,<P1>,<P2>,<P3>[,<data>]]]
Response: +CRSM: <sw1>,<sw2>[,<response>]
Test command: AT+CRSM=? Test if the command is supported
Parameters:
<command>:
<command> Description
176 READ BINARY
178 READ RECORD
192 GET RESPONSE
214 UPDATE BINARY
220 UPDATE RECORD
242 STATUS. Not supported
<fileid>: Note: The range of valid file identifiers depends on the actual SIM and is
defined in 3GPP 51.011. Optional files may not be present at all.
<disp> Description