1.1
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 / INTERCOM button
There are eight ringer frequencies available for each CO (Single-CO, Group-CO, Loop-
CO) button, DN (PDN, SDN) button and INTERCOM button. If you wish to change
them, refer to the "Ringing Tone Selection for CO Buttons" or "Ringing Tone Selection
for INTERCOM Button" 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
2
1-20
DPT Overview
Configuration
1. Lift the handset.
2. Rotate the Jog Dial in the desired direction.
• The display shows:
<Example>
Handset:***
• You may also adjust the handset receiver volume during a
conversation using the handset receiver.
(— volume level 3)