Siemens M20 Terminal Technical Description page 113

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AT^SCID Display SIM card identification number
Test command Response
AT^SCID=? OK
Parameter
Execute command Response
AT^SCID TA returns the card identification number in SIM (SIM file EF ICCID, see GSM 11.11 Chapter
10.1.1).
^SCID: <cid> OK
If error is related to ME functionality:
+CME ERROR: <err>
Parameter
<cid>
Reference Note
AT^SCKS Set SIM connection presentation mode and query SIM connection status
Test command Response
AT^SCKS=? ^SCKS: (list of supported <n>s) OK
Parameter
see set command
Read command Response
AT^SCKS? TA returns SIM connected presentation mode and SIM connected status.
^SCKS: <n>, <m> OK
Parameter
see set command
Set command Response
AT^SCKS=<n> TA sets SIM connected presentation mode whether or not an unsolicited result code is to be sent to
TE when SIM is not connected.
OK
Parameter
<n>
<m>
Unsolicited result code
When the status SIM connected has changed, an unsolicited result code is sent to TE
^SCKS: <m>
Parameter
see set command
Reference Note
Version 8 dated 15.03.00
string type: card identification number in SIM
0 Suppress unsolicited result codes
1 Output unsolicited result codes
0 No card
1 Card in card reader
AT command interface
A
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