AT Commands Reference Manual - wireless netcontrol GmbH

Chapter 3: AT Commands Reference
UI (User Interface)
+CRSM, Restricted SIM Access
AT+CRSM provides limited access to the Elementary Files on the SIM. Set command transmits
to the MT the and its required parameters. H24 handles internally all SIM-MT
interface locking and file selection routines. As response to the command, H24 sends the actual
SIM information parameters and 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, or bad SIM card, or PIN1/PUK authentication required, or required
input parameters not present. However, failure in the execution of the command in the SIM is
reported in and parameters.
Some of the AT+CRSM commands require PIN1/PIN2 authentication.
For more detailed information see the following specification documents:
• For 2G SIM: 3GPP TS 51.011
• For 3G USIM: 3G TS 31.101
Command
Type Syntax Response/Action Remarks
Set
AT+CRSM=
,[[,,,<
P3>[,]]]
+CRSM:
,[,]
OK
or:
+CME ERROR:
Set command transmits to the
MT the SIM and
its required parameters. MT
sends back the actual SIM
information parameters and
response data.
Test AT+CRSM=? +CRSM: (list of supported
s),(range of
supported
values),(range of supported
values),,
(list of need to be pasted
parameters
,,),
(length of the )
(range of supported
values)
OK
or:
+CME ERROR:
The test command displays the
possible ranges of selected
CRSM parameters.
April 15, 2010 H24 - AT Commands Reference Manual 3-271