8.17 Generic SIM access +CSIM

27.0073GPPAT command set for User Equipment (UE)Release 18TS

Table 77: +CSIM action command syntax

Command	Possible response(s)
+CSIM=<length>,<command>	+CSIM: <length>,<response> +CME ERROR: <err>
+CSIM=?

Description

Set command transmits to the MT the <command> it then shall send as it is to the SIM. In the same manner, the SIM <response> shall be sent back by the MT to the TA as it is. Refer clause 9.2 for possible <err> values.

This command allows a direct control of the SIM that is installed in the currently selected card slot, by a distant application on the TE. The TE shall then take care of processing SIM information within the frame specified by GSM/UMTS.

NOTE: Compared to Restricted SIM Access command +CRSM, the definition of +CSIM allows TE to take more control over the SIM‑MT interface. The locking and unlocking of the interface may be done by a special <command> value or automatically by TA/MT (by interpreting <command> parameter). In case that TE application does not use the unlock command (or does not send a <command> causing automatic unlock) in a certain timeout value, MT may release the locking.

Defined values

<length>: integer type; length of the characters that are sent to TE in <command> or <response> (two times the actual length of the command or response)

<command>: command passed on by the MT to the SIM in the format as described in 3GPP TS 51.011 [28] (hexadecimal character format; refer +CSCS)

<response>: response to the command passed on by the SIM to the MT in the format as described in 3GPP TS 51.011 [28] (hexadecimal character format; refer +CSCS)

Implementation

Optional.