AT Commands Reference Guide
80529ST10815A Rev.2– 2017-09-14
ReproductionforbiddenwithoutTelitCommunicationsS.p.A.writtenauthorization‐AllRightsReserved page229of233
AT$LICLS=?
Test command returns the range of values for parameter <mode>.
LCS certificate - $LTC
$LTC – LCS certificate
AT$LTC=<string>,<total_message_le
ngth>,<seq_no>,<Security_Object_Ty
pe>
Set command is used to pass the security objects (e.g. certificate,
key) to the Transport Layer Security Protocol (binary string).
The certificate shall be in hexadecimal format (each octet of the
certificate is given as two IRA character long hexadecimal
number).
Parameter:
<string> - the string certificate segment (max 300 characters per
segment)
<total_message_length> - The total size of the certificate to be
received
1-4096
<seq_no> - The sequence number of the segment.
1-13
<Security_Object_Type>
0: Root Certificate
Note: The last two certificates are stored in NVM.
AT$LTC
Execution command deletes the certificates stored in NVM.
AT$LTC
?
Read command provides the first 300 characters of each valid
certificate stored in NVM in the format:
$LTC: <string>,<total_message_length>,1,
<Security_Object_Type>
If no certificate is stored the read command provides:
$LTC: “”,0,1 ,<Security_Object_Type>
AT$LTC
=?
Test command returns the range of values for parameters
<total_message_length>,<seq_no> and
<Security_Object_Type>
Lock context for LCS use - $LCSLK
$LCSLK – Lock context for LCS use
AT$LCSLK=<mode>[,<cid>]
Set command is used to reserve a cid for LCS.
Parameters:
<mode>
0 – unlock the current cid available for LCS use
Note: No CID should be specified. Locked one will be released
automatically.
1 – lock the specified cid in order to setup a control link for
LCS use only
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