Geemarc PhotoTEL Installation And User Manual page 6

Setting up
Ringer setting
Ringer OFF / LO / HI
Your phone provides a ringer adjustment of High, Low or Off, the switch
is located at the rear side of the telephone.
When you don't want to be disturbed, slide the switch to the OFF posi-
tion. Only the red lamp will flash.
Otherwise adjust to HI or LO position.
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