8.3.5
Function Key
8.3.5.1
Function Key
Field name
explanation
Contrast
Set contrast of screen
Enable Backlight
Set enable/disable backlight
Line Key Settings
Line:
select Auto, SIP1, SIP2, SIP3, SIP4, or IAX2 in function key type. After you
set it, you pick up handset or hands-free, press this function key, and then you