Yealink T26

Function Key
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 can use the corresponding SIP line.
Function Key Settings