MC55 AT Command Set
13. SIM related Commands s
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MC55_ATC_V01.05 Page 356 of 469 2/10/04
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13. SIM related Commands
The AT Commands described in this chapter are related to the Subscri ber Identity Modul (SIM) connected to the
MC55.

13.1 AT+CRSM Restricted SIM Access

Syntax
Command Description
By using this command the TE has access to Elementary Files on the SIM. Access to the SIM database is
restricted to the commands which are listed at <command>.
As response to the command the ME sends the current SIM information parameters and respon se data. ME error
result code +CME ERROR may be returned if the command cannot be p assed to the SIM, e.g. if the SIM is not
inserted. However, errors related to SIM data are reported in <sw1> and <sw2> parameters as defined in GSM
11.11.
Parameter Description
All values not listed below are reserved; refer GSM 11.11.
176 READ BINARY
Test Command
AT+CRSM=?
Response(s)
OK
Write Command
AT+CRSM=<command>[, <fileID>[, <P1>, <P2>, <P3>[, <data>]]]
Response(s)
+CRSM: <sw1>,<sw1>,[<response>]
OK
ERROR
+CME ERROR: <err>
PIN ASC0 ASC1 MUX1 MUX2 MUX3
% % % % % %
Reference(s)
GSM 07.07
<command>(num)