Introduction
14
Layout of the optiPoint 420 advance S V6.0
Keys for phone settings
Microphone for
speakerphone
Loudspeaker for
open listening
Dialog key for confirming a function
Dialog keys for scrolling through functions
Handset
Dialing keypad
Illuminated graphics
display, 4 lines of 24
characters each
Key fields
–
Programmable* func-
tion keys
Key fields
–
Programmable*:
function keys
optiPoint self labeling
key module
*
With automatic key labelling