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DPT Overview 1-19
1.1 Configuration
When using the headset
The Panasonic Digital Super Hybrid System supports the use of a headset with a
proprietary telephone (PT). When you use the headset (optional), you should switch the
selection mode first. Selection is explained in the “Handset/Headset Selection” in Station
Programming (Section 2).
To change to the headset mode
Press: [PROGRAM] [9] [9] [9] [2] [STORE] [PROGRAM].
Changing the ringing tone of a CO button
There are eight ringer frequencies available for each CO (Loop-CO, Single-CO) button.
If you wish to change them, refer to the “Ringing Tone Selection for CO Buttons” in
Station Programming (Section 2).
Volume Control — Handset Receiver/Headset/Ringer/Speaker
Allows you to adjust the following volumes as required.
— Handset Receiver volume (levels 1 through 4)
— Headset volume (levels 1 through 4)
— Ringer volume (levels 0 through 3)
— Speaker volume (levels 1 through 12)
If your digital proprietary telephone is provided with a display (display DPT), the volume
level is indicated on the display by the number of asterisks. For ringer volume adjustment,
three levels (OFF/LOW/HIGH) are available with the KX-T7420 and KX-T7425.
To adjust the handset receiver volume
1. Lift the handset.
2. Rotate the Jog Dial in the desired direction.
• The display shows:
<Example>
(— volume level 3)
• You may also adjust the handset receiver volume during a
conversation using the handset receiver.
Handset:***
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