7407D, Enhanced 7407D, and 7407 Plus Voice Terminals
If the voice terminal is connected to: Set Switch 1 to:
System Release Version Switch Setting
System 75 1 1 On
System 75 1 2 and above Off
System 85 1 All On
System 85 2 1 On
System 85 2 2 and above Off
DEFINITY Generic 1 Off
DEFINITY Generic 2 Off
Note: If this switch is not set correctly, the display will not work properly. For
example, the call appearance display, usually on the top line, may appear on
the second line instead.
Switch 2 is set for the Speakerphone feature (to the OFF position). If the voice terminal
is to be set for the Speaker (listen-only) feature, set Switch 2 to the ON position.
Note: In order to allow the system to recognize this change in the setting, you must
disconnect the voice terminal and then plug it in again.
Switch 3, on the 7407 Plus voice terminal, is not to be used at this time.
3-176