NEC DT730G (CG): ITL-12CG-3 User Manual page 120

1.
After a third attempt (if incorrect password is entered
three times consecutively), the following error message
is issued. Press or OK. The telephone locks up,
TIP
and any key operation will be disabled for 10 minutes.
Wait for 10 minutes, make a retry. Please note
emergency calls cannot be completed during the 10
minutes terminal lock out period.
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