Control panel
Example: optiPoint 420 advance
Loudspeaker for
open listening
Handset
Keys for phone settings
* With automatic key labelling
Illuminated graphics
display, 4 lines of 24
characters each
Dialog keys for scrolling through functions
Dialog key for confirming a function
Using the optiPoint 410/420 family S V6.0
Key fields
Programmable*:
function keys
Key fields
Programmable* func-
tion keys
Dialing keypad
optiPoint self labeling
key module
Microphone for
speakerphone
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