1.1 Before Operating the Telephones
Used to disconnect the line.
Programmable Feature (PF):
Located on the upper part of the CO
button array or on the DSS Console.
Assigns the desired button and used to
access the stored feature. Mostly used
as a One-touch Dialling button. (Only
the "F and number" may be shown on
Used to select the displayed item or to
call the displayed phone number.
Used to confirm the selected item.
If the term is in parentheses like (Account) in this section, it means a flexible button has been made
into an "Account" button. To customise, refer to "3.1.3 Customising the Buttons".
Used to access an idle outside line for making outside calls.
Incoming outside calls from any outside line arrive at this button.
Used to access an idle outside line in a specified outside line group for
making outside calls.
Incoming calls from outside lines in the assigned outside line group arrive
at this button.
Navigator Key/Jog Dial/Volume Key:
Used to adjust the volume and the
display contrast or select desired
Used to shift the display to access
Used to access the second level of Soft
Used to cancel the selected item.