Basic operating instructions
optiPoint 420 advance and
optiPoint self labeling key module control panel
Speaker for open listening
and ring tones
Handset
Keys for telephone settings
[1] With automatic key labeling
[2] Cannot be changed on optiPoint 420 advance
Backlight graphics
display, 4 lines with
24 chars
Keys for scrolling to functions
Key for confirming a function
Basic operating instructions
–
Key field
fixed function keys
2
Program/Service
2
Redial
Mailbox
Mute or Internal
2
Speaker
–
Key field
freely programmable
1
keys
optiPoint self labeling
key module
Keypad
Microphone
for speakerphone mode
1
:
9