Telephone Reference Information
Front Panel: optiPoint 500 advance optiPoint key module
Speaker
for Speaker-
phone
and ring tones
Handset
Keys for
Keys for selecting
configuring
a function
the telephone
10
Lighted display,
2 lines,
24 characters per
line
Enter key
for selecting
a function
Key labels
Service Menu
Redial
Microphone on/off or internal
speaker
Keypad
LEDs
Key labels
Preset
Function key:
End
Microphone for speakerphone
Preset Function keys:
–
Programmable keys
.
optiPoint key module
with additional keys
programmable keys