NEC DT750 User Manual page 142

• TO UNLOCK THE TELEPHONE
STEP 1: Display the Password Entry screen by either
of the following operations.
• Press any key while the screen saver is
activated.
• Press Security while the screen saver is
activated.
Security lock will be released.
input a password.
BK
STEP 2: Enter the password and press
OK. Security Lamp is extinguished and Secu-
rity Mode is canceled.
When the password entry ends in failure, the following
Note
error message is issued. In that case, press
and retry.
Password Error.
Cancel OK
(Enter)
Retry?
Cancel OK
After a third attempt (if incorrect passwords are entered
three times consecutively), the following error message
is issued. Press
Note
and any key operation will be disabled for 10 minutes.
After 10 minutes, make a retry. Please note emergency
calls cannot be completed during the 10 minutes termi-
nal lock out period.
or
or OK
136
or OK. The telephone locks up,
Incorrect security code
password entered.
OK