BT 2100 User Manual page 19

The default recall setting (option 2)
is set at 100ms which is used by the
Public Telephone Network as well as
most PBX's. Normally you will not
need to change this setting but some
PBX's may require a longer recall in
which case option 1 (280ms) should
be selected.
There are 2 settings to choose from.
Press the button.
Press the button.
Press for the setting you want.
Press the button to confirm.
This will return your phone to its
original factory settings.
Press the button.
Press the button.
Enter the system PIN number
(factory setting 0000 ) .
Press the button. The default
handset settings are restored.
The system PIN number is factory
set to 0000 and is used to access and
program certain functions. If you
wish you can change this PIN to a
four digit number of your choice.
Press the button.
Press the button,
display shows - - - -.
Enter the existing PIN (0000 if it
has not yet been changed since
purchase), display shows 0000.
Press the button,
display shows - - - -.
Enter your new PIN,
display shows 0000.
Press the button,
display shows - - - -.
Enter your new PIN again,
display shows 0000.
Press the button, the unit
beeps and the display returns to idle.
Your PIN is now changed.
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