Siemens M20 Terminal Technical Description page 85

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AT+CRSM Restricted SIM access
Test command Response
AT+CRSM=?
OK
Set command Response
AT+CRSM=<com By using this command instead of generic SIM Access TE application has easier but more limited
mand>[,<fileid> access to the SIM database. As response to the command, ME sends the actual SIM information
[,<P1>,<P2>,<P3> parameters and response data.
[,<data>]]]
+CRSM: <sw1>, <sw2> [,<response>] OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameter
<command> 176
all other values are reserved
<fileid>
<P1>,<P2>,<P3>
C O M M A N D
S T A T U S
R E A D B I N A R Y
U P D A T E B I N A R Y
R E A D R E C O R D
U P D A T E R E C O R D
G E T R E S P O N S E
M o d e
0 2
0 3
0 4
<data>
<sw1>, <sw2>
<response>
Reference Note
GSM 07.07 Parameters <command>, <fileid>, <P1>, <P2>, <P3> can also be entered in hexadecimal format.
Hexadecimal characters have to start with 0x.
Version 8 dated 15.03.00
READ BINARY
178 READ RECORD
192 GET RESPONSE
214 UPDATE BINARY
220 UPDATE RECORD
242 STATUS
integer type; this is the identifier of a elementary data file on SIM.
Mandatory for every command except STATUS
integer type; parameters passed on by the ME to the SIM
P 1
o f f s e t h ig h
o f f s e t h ig h
r e c N o .
r e c N o .
N e x t r e c o r d . P 1 h a s n o s i g n i f i c a n c e a n d s h a l l b e s e t t o '0 0 '.
P r e v i o u s r e c o r d . P 1 h a s n o s i g n i f i c a n c e a n d s h a l l b e s e t t o '0 0 '.
A b s o l u t e m o d e / c u r r e n t m o d e , t h e r e c o r d n u m b e r i s g i v e n i n P 1 w i t h P 1 = '0 0 '
d e n o t i n g
t h e c u r r e n t r e c o r d .
information which shall be written to the SIM (hexadecimal character
format)
integer type; information from the SIM about the execution of the ac-
tual command. These parameters are delivered to the TE in both cases,
on successful or failed execution of the command
response of a successful completion of the command previously issued
(hexadecimal character format)
AT command interface
P 2 P 3
o f f s e t lo w lg th
o f f s e t lo w
m o d e
m o d e
A
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