Panasonic 308 Installation Instructions Manual page 208

S-DBS Operating Instructions
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ADJUSTING DISPLAY CONTRAST AND VOLUME LEVEL
Display Contrast
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You can adjust the contrast to 16 different levels.
1.
With receiver in place press # key.
2. Press VOL v to dim the display.
3.
Press VOL A to brighten the display.
Volume Levels
You can adjust the volume to five different levels.
Ring Volume
While the phone is ringing
1.
Press VOL v to lower the sound level of the ring.
2.
Press VOL A to raise the sound level of the ring.
Dial Tone Volume
While sound is coming from the speaker
1.
Press VOL v to lower the voice level of the speaker.
2.
Press VOL A to raise the voice level of the speaker.
Receiver Volume
While talking on the telephone
1.
Press VOL v to lower the level of your voice.
2.
Press VOL A to raise the level of your voice.
NOTE: Voice level on the receiver will return to the normal level after you hang up.
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