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15.12 Non Secured Call Indication
Specifies whether or not the Non Secured Call Indication feature is enabled in the phone. When
enabled, this feature warns the user about unencrypted incoming calls.
Turn the check box on (Enable) or off (Disable) by clicking in the check box.
15.13 Encrypted Only
Enabling this option will cause the terminal to only search for cells supporting encryption at power
on or each cell reselection. The terminal will not register in any cell using ciphering off, in case the
flag is set to encrypted-only.
The options are:
•
Encrypted Only.
•
May Be Clear.
15.14 Class 3 Cell Ranks Higher than Class 2 Cell
If this feature is set to "Cell 3 is better", it means that a cell operating in Security Class 3 will be
ranked higher than a cell operating in Class 2
If this feature is set to "Cell 3 is equal", it means that a cell operating in Security Class 3 will be
ranked equal to a cell operating in Class 2.
It is only relevant to terminals supporting Static Cypher Key (SCK) and Dynamic Cypher Key (DCK).
The options are:
•
Cell 3 is Better.
•
Cell 3 is Equal.
15.15 Key Erasure Mode
This option is used to erase the encryption keys prior to the terminal going for service, or when the
vehicle in which a (mobile) terminal is mounted is sent for service. This mode may also be used to
remove all key material from a terminal in emergency situations.
An terminal that supports air interface encryption will initiate erasure of cipher keys (SCK) stored in
the terminal on detection of a unique terminal front panel key sequence. This sequence will only be
processed when the terminal is in the idle or emergency states.
On detection of an emergency key-erase operation, the terminal operational state will be Temporary
MS Disable (Equipment). The terminal will send an unsolicited PDU to the SwMi (if the terminal is
currently registered), to indicate that it has gone into this state. As this PDU must be sent encrypted,
it will be sent prior to performing the key erasure (if terminal is registered).
Select one of the following options:
•
Erase All Keys Except K – when the key erase key sequence is entered on the terminal it
will erase only SCKs, not Authentication Ks.
•
Delete All Keys – when the key erase key sequence is entered on the terminal it will erase
SCKs and K.
Provisioning of K and the SCK into the terminal will be done using the KVL.
To select the option, put the pointer into the field value, click on the arrow, and drag the pointer to
the desired option.
6866588D21-D
Chapter 3 - MTP850 Ex/MTP810 Ex Product Information Manual
Customer Programming Software (CPS)
March 2009
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