Panasonic KX-AT7730 - Initial Settings; Speaker volume; Handset;Headset volume; Ringer volume

Speaker volume
*
Press SP-PHONE.
Press Up or Down.
While in on-hook or during a conversation
Handset/Headset volume
*
Press Up or Down.
While using a handset or headset
Ringer volume
Display contrast
*
Press Left or Right.
While in on-hook or receiving a call
While in on-hook or receiving a call
Slide the lever of the RINGER Volume Selector
to the desired setting (HIGH/LOW/OFF).
* The above settings may return to default settings if the telephone line cord is
disconnected or the main unit's power is interrupted.
SP-PHONE
RINGER
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Initial Settings