Function Key
8.3.5
Field name
Contrast
Enable Backlight
Function Key
Settings
key
Type
Function Key
explanation
Set contrast of screen.
Set enable/disable backlight.
Show the function key's serial number.
Memory Key: settings can be stored in key storage
for each number, the standby or off-hook, select
the function keys on the keyboard can call this
number.
Line, set the dial mode (Auto, SIP1, SIP2, SIP3,