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DPT Overview
User Manual 35
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.
To change to the headset mode
Press: [PROGRAM] [9] [9] [9] [2] [STORE] [PROGRAM].
Changing the ringing tone of a CO button / Intercom calls
There are eight ringer frequencies available for each CO (Single-CO, Group-CO, Loop-CO)
button and INTERCOM button. If you wish to change them, refer to "Ringing Tone Selection
for CO Buttons", "Ringing Tone Selection for Intercom Calls" in Station Programming.
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
• You may also adjust the handset receiver volume during a conversation using the handset
receiver.
Display PT
Lift the handset.
Rotate Jog Dial in the desired direction.
<PT Display Example>
Handset:***
(-volume level 3)