Siemens M20 Terminal User Manual

AT command interface
Version 8 dated 15.03.00 85
Siemens Information and Communication Products
A
AT+CRSM Restricted SIM access
Test command
AT+CRSM=?
Response
OK
Set command
AT+CRSM=<com
mand>[,<fileid>
[,<P1>,<P2>,<P3>
[,<data>]]]
Response
By using this command instead of generic SIM Access TE application has easier but more limited
access to the SIM database. As response to the command, ME sends the actual SIM information
parameters and response data.
+CRSM: <sw1>, <sw2> [,<response>] OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameter
<command> 176 READ BINARY
178 READ RECORD
192 GET RESPONSE
214 UPDATE BINARY
220 UPDATE RECORD
242 STATUS
all other values are reserved
<fileid> integer type; this is the identifier of a elementary data file on SIM.
Mandatory for every command except STATUS
<P1>,<P2>,<P3> integer type; parameters passed on by the ME to the SIM
<data> information which shall be written to the SIM (hexadecimal character
format)
<sw1>, <sw2> 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> response of a successful completion of the command previously issued
(hexadecimal character format)
Reference
GSM 07.07
Note
Parameters <command>, <fileid>, <P1>, <P2>, <P3> can also be entered in hexadecimal format.
Hexadecimal characters have to start with 0x.
COMMAND P1 P2 P3
STATUS
READ BINARY offset high offset low lgth
UPDATE BINARY offset high offset low
READ RECORD rec No. mode
UPDATE RECORD rec No. mode
GET RESPONSE
Mode
02 Next record. P1 has no significance and shall be set to ’00’.
03 Previous record. P1 has no significance and shall be set to ’00’.
04 Absolute mode/current mode, the record number is given in P1 with P1=’00’
denoting
the current record.

Siemens M20 Terminal Specifications

General

Brand	Siemens
Model	M20 Terminal
Category	Engine
Language	English