
GMT00 @Track Air Interface Protocol
TRACGMT100AN001 – 54 –
3.2.20. Auto-unlock PIN
The command AT+GTPIN is used to configure the auto-unlock PIN function of the device.
Some operators offer SIM card with PIN code protection by default. To make the device work
with the PIN-protected SIM card, use this command to let the device auto-unlock the SIM PIN
with the pre-set PIN code.
AT+GTPIN=
Example:
AT+GTPIN=gmt100,1,0000,,,,,,0013$
'0' – '9' 'a' – 'z' 'A' – 'Z'
<Enable Auto-unlock PIN>: 1 to enable the auto-unlock PIN function, 0 to disable.
<PIN>: Code used to unlock the SIM PIN.
The acknowledgment message of AT+GTPIN command:
+ACK:GTPIN,
Example:
+ACK:GTPIN,080100,135790246811220,,0013,20090214093254,11F0$
XX0000 – XXFFFF,
X∈{„A‟ – „Z‟,‟0‟ – „9‟}
'0' – '9' 'a' – 'z' 'A' – 'Z'
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