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Function Key
8.3.5
Function Key
8.3.5.1
Field name
Contrast
Enable Backlight
Backlight Time
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 can use the corresponding SIP line.
explanation
Set contrast of screen
Set enable/disable backlight
You don‟t operate the phone more than a backlight
timeout setting, the backlight will turn off
automatically
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