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SETUP WITH UP/DOWN KEY
• TO ADJUST HANDSET RECEIVER
VOLUME
Press Up/Down ( or / ) key in the off-hook
status or during the call.
LCD indication for North America, Latin America, Asia,
Middle East and Russia
LCD indication for Australia
• TO ADJUST SPEAKER VOLUME
Press Up/Down ( or / ) key during
speakerphone operation or during the call.
• TO ADJUST RINGER TONE
Press Up/Down ( or / ) key during ringing.
• TO ADJUST LCD CONTRAST
Press Up/Down ( or / ) key in the on-hook
status.
DT330/310
HANDSET
HANDSET
DT330/310
SPEAKER
DT330/310
RING
DT330/310
LCD
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