Further information
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Appendix : SIM security features
When entering PINs, there are no editing functions. Take care to
correctly enter the PIN. The digits entered are displayed with the
*
character for security purposes, so 1234 would be displayed as
****
. The SIM PIN mechanism is designed to provide a high level of
protection. Three attempts are permitted for normal PIN entry, after
which the unblocking code will be required (PUK). This is protected
by several levels of time prevention to avoid repeated guessed at-
tempts. A total of 10 attempts are allowed before the SIM is rendered
completely unusable.
Time to wait before next PUK input is allowed
• 1st failed attempt, no time to wait
• 2nd failed attempt, 4 seconds
• From 3rd failed attempt, 256 seconds each time
The SIM pin can be between 4 and 8 digits. The PUK is always 8
digits and can be obtained from your service provider.
The Burnside unit’s Terminal PIN is fixed to 4 digits and the security
measures are simpler. After 3 failed attempts, a delay of 1 minute is
applied before accepting another attempt, but importantly, the code
stored for auto SIM unlock is erased. If the unit is powered off and on
again this delay is cleared.
The most important and financially hazardous situation is to leave
the SIM unlocked. If the terminal PIN is lost, contact:
for a release code to restore the
default.
Emergency calls only
If the SIM is locked or there is not even a SIM in the terminal, it is still
possible to make emergency calls by dialling the 112 or 999 (in the
UK) emergency number.
Auto unlock precaution
The SIM auto unlock facility works by remembering the last success-
ful PIN that was used. If the auto-unlock facility is then enabled, it will
unlock the SIM. However, if the SIM is changed for another SIM, the
auto unlock facility is cleared.
IMEI code
(International Mobile station Equipment Identity)
This is a unique 15 digit number that we recommend you write down
in the front of this manual in the place provided. To view this number
dial
*
#06# or look on the label on the underside of the unit. This
number can be used by network operators to permanently block the
use of the terminal in the event of theft. You may also be asked for
this code when requesting support.